Loading...
HomeMy WebLinkAboutGEO Thermal Z Vir ' , CI\ ) ® ‘\ (I) .14 40 al o o co al N .,; N til .■-•-■°, N.) © TT c„ O 1. ( \ ) � e LL a 0.4 Vic. !) ctld LL `°'", L.0 {t. •,T 't* 0 n N , ' ' r-I et 1 9 EIO , ,,, ›, v-, . 1...', g i O A 1 J L N 1 1 ,2\P - - DI u% h— i\ N -3 ,,,,,,„ i ® c , , ,,, _a c v Q 0 c° -. W W r y Q. 6 e i '4 ' A 't N N t\ ,. - (..- o T , .„._ (2) v ,_ i..„ \-- ) ? d AQ , , \......„ 0._ ,, -N....c.o.s., U m CJ 4k R N --- G LL Ci) ® Q al N � Q o 2 --r 0 Oo t c t o tx) M 'E--. m to ../ -, .,,:: , N y � rl C-1. % ' Z w ri N N Z N L-1 AoN VT-8^oN TZ - STAoN 8Z S ad 6Z " °N o • City of Oak Park Heights 14168 Oak Park Blvd. N • Box 2007 • Oak Park Heights, MN 55082 • Phone (651) 439 -4439 • Fax (651) 439 -0574 11/5/09 TO: City Hall Facility Area Residents FROM: Eric Johnson, City Administrator RE: GEOTHERMAL Well Field - Drilling Operations. Dear City Resident: As you are aware the City's contractor for the GEOTHERMAL well field drilling has commenced operations. Unfortunately, the construction timeline has been impacted by rain and snow, which has precluded some drilling due to poor site conditions, only six of fifty wells ( + / -) have been achieved. The City has previously limited drilling operations from Monday through Friday, 7 am to 7 pm, but 111, due to these weather delays some time will need to be made up. The Contractor has requested permission to drill on Saturdays from 8 am to 4 pm. The City is generally willing to allow this work in good -faith so that all elements of the project may stay within their required timelines. Accordingly, the City has given permission to the Geothermal Contractor only to operate from 8 am to 4 pm on the following Saturdays - Nov 14 and the 21st. To date, noise has been moderate and perhaps less than anticipated. However, should there be issues associated with this Saturday work that would be problematic please let me know as soon as possible and we can see what options are available. Call me at 651 -439 -4439. Please note that the Geothermal Contractor was able to save the large rows of pine trees in the well field area, removing only small scrub and large amounts of invasive buckthorn; the balance of the surface will be restored to prairie -type area. If you would like a tour of the site or would like to find out more about GEOTHERMAL systems please let me know and I will be happy to provide what I can or host a tour. Regards, 7 Eric Johnso City Administrator • CRENSON CONSTRUCTION INC. AM. •11ONCASWELL September 14, 2009 OCT 0 12009 Jorgenson Construction, Inc. 9255 East River Road N.W. Coon Rapids, MN 55433 -5722 Attn: Steve Gansmoe RE: Oak Park Heights City Hall Geothermal Loop System - Oak Park Heights, MN Mr. Gansmoe, I have received a request to submit a letter to verify the current geothermal loop design proposal will work as well as the original, more centralized system. I can verify that the current design will work as well, if not better than the original design when the system is completed. The current design features approximately 40% of the total number of borings to the east of the new city hall and the remaining 60 %, of the total number of borings, located south of the new city hall which is under a planned new paved parking area. The reason it may work better is due to spreading the load of the building out over more soil. The current distributed loop system will be interacting with a larger soil volume than if it were all arranged in one tight rectangle. Regar , David Henrich Division Manger Direct (952) 255 - 7000 E - mail david @bergersoncaswell.com Bergerson - Caswell, Inc. Geothermal Services Division 5115 Industrial Street Maple Plain, MN 55359 Phone: 763 -479 -3121 Fax: 763 - 479 -2183 411) rlat #1,11, A4) EP !! -' association 6EOEXCHANGE IIGSHPA M ASTER CONTR.4CTOR 4..�4 U. nor c..�.a n.ft.w w..,+. w Bergerson- Caswell, Inc. Geothermal Services Division ®•' .° 5115 Industrial Street III ••- .� _ L Maple Plain, MN 55359 BERGERSON- CASWELL Phone: 763 - 479 -3121 Fax: 763 -479 -2183 I September 14, 2009 JQRGENSON I ;CON INC 1 Jorgenson Construction, Inc. SEP 1 7 2009 9255 East River Road N.W. Coon Rapids, MN 55433 -5722 Received Attn: Steve Gansmoe RE: Oak Park Heights City Hall Geothermal Loop System - Oak Park Heights, MN Mr. Gansmoe, I have received a request to submit a letter to verify the current geothermal loop design proposal will work as well as the original, more centralized system. I can verify that the current design will work as well, if not better than the original design when the system is completed. The reason it may work better is due to spreading the load of the building out over more soil. The current distributed loop system will be interacting with a larger soil volume than if it were all arranged in one tight rectangle. Regards, i / /-� • David Henrich Division Manger Direct (952) 255 - 7000 E -mail david@bergersoncaswell.com T ~ GEOEXCHANGE 'GSHP A -.. r ... 1O%S CON "1 "RACI OR 0..i.- +x.- cu.-am. c -a.a n.ne.�iaaa. Eric Johnson m: Randy Engel [ randy _engel @buetowarchitects.com] t: Tuesday, August 25, 2009 4:03 PM Eric Johnson Michael Lueth; Dan Moulton Subject: OAK PARK HEIGHTS CITY HALL (BA #0822) - GEOTHERMAL August 25, 3009 Eric: Regarding the location of the Geothermal Well Fields: 1.0 East Option locates all 102 to 104 wells east of the new building (south of the trail and approximately 50' from the City's south property line). A number of trees would be removed. 1.1 Construction in 1 phase. 1.2 Occupancy in new City Hall expected March or April 2010 (includes 1 month move -in period). 1.3 No temporary provisions for heating and cooling in new City Hall. 1.4 Completion and operation of wells would occur prior to occupancy of new City Hall. 1.5 Balancing of Geothermal System at one time prior to becoming operational. 1.6 Geothermal System is primarily for cooling - operation of system control by Energy Management System /Building Automation System. No operational problems foreseen. 1.7 Construction costs covered within the Contract - We don't foresee additional costs. 1.8 Project completion expected in August, 2010. 2.0 Split Option locates 102 to 104 wells into two areas: wells 44 to 46 wells east of the new City Hall and 58 to 60 wells in the new parking lot south of the new City Hall. Small quantity of trees would be removed. 2.1 Construction in 2 phases: The first phase during construction of new City Hall Building and second phase after existing City Hall would be demolished and before new parking lot is constructed. Occupancy in new City Hall expected March or April 2010 (includes 1 month move -in period). Temporary provisions would provide air conditioning for new City Hall until geothermal system is completed. One to two extra months of construction time because new geothermal wells would have to be finished before new th parking lot is constructed. 4 to 5 day interruption of cooling when south wells are brought on -line in late summer. 2.5 Balancing of Geothermal System at two times prior to becoming operational. Operation 2.6 Geothermal System is primarily for cooling - operation of system control by Energy Management System /Building Automation System. No operational problems foreseen. Heating and cooling capacity and operations similar to East Option. 2.7 Construction costs covered within the Contract - We don't foresee additional costs. 2.8 Project completion expected in September or October, 2010. Ve See below for specific issues and more detailed discussion LA.‘i BUETOW AND ASSOCIATES, INC. Randy L. Engel, RA, AS Principal -in- Charge 2345 Rice Street, Suite 210 St. Paul, Minnesota 55123 Tel 651 483 -6701 Fax 651 483 -2574 Cellular 952 237 -5932 ditional Information from Dan Moulton (edited) here would be 44 wells on the east side of the building available for cooling in the summer of 2010. That is 44% of the required Is and thus about 44% of cooling capacity or about 24 tons of cooling 1 2. The lower level requires about 10 tons of cooling and this could be supplemented by using the existing furnace and condensing units from the Public Works area. These would be relocated to the new lower level and the condensing units reconnected. This would require relocation, power and some ductwork connection. This would eliminate 10 tons of cooling required on a temporary basis. he Council Chambers requires 5 tons (with about 50 people in this room) and that space can be in unoccupied (80 degrees) when being used during the day. This would eliminate another 5 tons of required cooling and but this cooling would be available for al chamber meetings in the evening when other areas on in unoccupied mode. 4 The biggest load is in the Rotunda and requires about 18 tons on a 90 degree day. 5. If we eliminate 15 tons of cooling with the lower level and the Council Chambers, that will leave us with about 40 tons required for rest of the upper level including the Rotunda on a 90 degree day. If we have all the areas except the Rotunda at normal cooling, there would be about 2 tons (out of the 18 tons) available for the Rotunda. On a day that was not 90 and sunny, there would be more cooling available for the Rotunda. If offices were set up to 76 degrees instead id 72 degrees that would also allow more cooling for the Rotunda. The Rotunda VAV box will need to be set at a reduced CFM (and cooling capacity) for a time during the summer and that space may see temps up to 80 degrees on some days. Having the well field symmetrical and about the same amount of piping for each set of wells is not critical but it makes the balancing of the system easier. Each well does not have its own balancing capabilities and some wells may see a slight variation in GPM with the well field split up into some small branch lines. The total GPM will reach the field and the amount of heating and cooling should not be compromised but we are always trying to make the system easier to balance and operate. As I have indicated previously, the cooling for the first summer will be limited to the first level with the rotunda and the council chambers without full cooling during the day. Additional Information from Bergerson - Caswell (edited) Steve, Due to the city's desire to minimize the loss of trees on this project, we will only be able to install the 44 wells on the east side of the building. I cannot confirm when the peak Toads will impact the Tiding as Dan has laid out below. However, if the building schedule can stay on track we should ve the loops drilled and installed before peak cooling season arrives. This does rely on the existing ildings demolition schedule. We will be able to put drills on this phase of the project as soon as e site is ready for access. I have forwarded the report from my calculations stating that 102 bores are sufficient for this project. If anyone has questions about that report please have them contact me directly. The manifolds are constructed with balancing valves for balancing unequal circuits. -Dave 2 _ _ . _ a ll'ISGTOA MINNESOTA DEPARTMENT OF HEALTH MDH USE ONLY • MDH. Well Management Section P.O.,Box 64975 No. St. Paul. Minnesota 55164-0975 Date Received Application 651/201 or 81X1/383 $215 Application Fee Fax No. 651/201 (4887) — Heat Loop Deaf and aring: TTY 651/201 Schematic of Plumbing Design Received Approved Site Plan Showing Isolation Distances Application for permit to install a vertical heat exchange device (earth- Received Approved coupled heat loop) pursuant to Minnesota Statutes. Chapter 1031 and Logs of the Holes. if Existing rules adopted thereunder. (NOTE: Make check payable to: Minnesota Department or Health) General Project Data to be c(roplettd i)N; all applicants (please print w type all information provided). Name of Certified Representative /4. . a! 4 4 Certified Representative N. 7 CIA WAL Company Name 5 _ _ Company License No. 42(17 Telephone No (including area code) q _ Street Address 5)15ikackm City, State, and ZIP Code 001,-At i tc . ALV AAA SS s1 applies for a permit to install a vencal heat exchanger device (earth heat loop) as hereinafter set form or as disclosed by attached supporting data. 1_ A. Legal Description or Vertical Heat Exchanger (VIM:). Township Range Section Quarter(s) County ThAvri3hip N:arie No. No N.'. Smallest Largest f\rn ives I I, 13. VILE Location Site Address A /Jr & — 77 A - ( ZIP (7otle c 41 1116. 2. Vertical Heat Exchanger Owner Mailing Address. Name 4 4, 4 - . 4 NA elinr Addrcss / City Stow ZiP Code 3, Property Owner Address (if different than the Vertical Heat Exchanger Owner Mailing Address). Name mare.„, , . , . . II). Description of the Vertical Heat Exchanger - Construction Detail. Please supply the following information where appropriate. If the vertical heat exchangers are not yet constructed, write in the cstimatod depths. sires. and dates. Nuniber of Holes Halt Drpfhfs) Diameter of Piping(s) Aoncipeuxf Depth to Bedrock 10 . Piping Ivlatuial liich Dene.ity P.,11,-111 0 Otfus 4. irolitmg, Matt:6.d 0 tiv,11.1 0 eciipm■ ti:arh.1 Gr wow. f;a<tin3411±, Enti,ViCtN/ Be110.7114le 0 ( Flvat TtaTI,Alti Flui,1 •LEKSP-6radr .11" Fo..xl-Giutic I'myytvrte k ' 0 l'ihr 3. lkstription of the !teat Puny t 'nit. Name of 3.1anuiackurrr j Stodd tio '..- M;)•sirrna in Rau Rau" -- - e Nati... ot I v,tott..4 Pit 1v1Allxik■=n 1 , ,o ...- , %;tx. A ,T i' r1 NI:ou mum 's lituillonti 6 Location tor %crtical Heal Exchanger Indicate the loeatiim of the vertical het exchanger = =11 111 ,C,ICI1Cd -4itt.: rid) 'ill( ivi.`in.* i:olatIon Lbstaaccs from water-supply %;ell. power lines, gas lines, LP tanl build' oi, And pro' crty Imes III Attached are two likely locations for the proposed geothermal well fields. -nlc slic 3hul dia intLst be .. The City (owner) is working to best define locations to preserve trees and to determine what best fits the site. (See site diagram #1 & #2) Ai a condi ■■1 this pernet, 1 :.1 it) CLNIStrUCI LIIIS %.crti cal be..il cxcll.i.it irridcr th c , ,T , `.1111...; . Nlmntsota Statutes, charter 1031 _old the rules ,ILlopteli under it. Signature Date --- ,_, _ ...., ,...... .. (Lerttlieci kepresen tau vc ) I flan/Lid/MY) As a wridition of U .11: lig= t operate and maintain this vertical heat. exchanger under the provisirons 1)( lvininesotu Statutes. Chapter 1031 an . es . ,ind to allow inspection by the commissioner hisiber agent (luring r la egu work hours. t i Signature (tee 4b14 SAO 4 S r Dat- .0 i , - Owner of Proty) per ( •, dd.'• ) kings {tat Loop Applw.ition ,ionJ Mcrou.doc 9/2/0k • J / , • I I j / j / I t If , I I / i % I / j 1 i / , , / .„..... . . . _,...',...... ., / / . ,......„,„0, . / ,.., 1 ./ , /, , , , , ,, / j e 2— „,/ /, ,, / 1 ,, // 1 / j .... i!.,..: i t., ::: , A ' ' % 1 r , . 0 , ,. �, T V il 4,' '• , , .4 0 // \ \ ,9 ; / '' % t i / ql / '° , - i I F -- _- n -- s .. � r ` p }+ T i • 1T- i 1,r,`mi. ill 4 ) l e ■ 1 - Man MI III_IM 1, . - 1,4 -- t. -- r. j ';''Y , , ",„, I I �T ■ ■►9 ` , /i 1 1 0 _ - . - - . -- - . , 1 . , j + i ' X11 �'r� 1 I I I I I I _ 4 li 1 , , • ,, 1 1 11 / 1 1 . ,, / I : 4 1 1 / 1, / 1 1 / / , z ,,, , / / : , ,. to / / / / / / / / / ,� / �, _{ r 1 a_ A „ , , , , / / I WI i i / j i , / I • 4 I / / t / j I I / x 4 i i / 1 E / a'� - gam } '1 X 14 •— ' { I 0 / s , ' : : , : F ' 'ji . 4 '1 !i , ' ":4: ' / 1\ ''‘ i, . + 7_ : i I r r 1 1 1 4 0 / 77 ! • , . . / q--, I / ❑ �_� ,,.., w = - - -- - ------- - - - - -- 1 , ; -- -4 - - -- I j t .,.1 ....a.. ,1 q _ 1 ftr 1 7",:i 4 - - 'i lt., a ..i I% I •� ..prlall...� - I I 1 ■ 11 1 , 1 � _- 1 1 \ 1 `� -_ rT ' 1 a I I j' I —..J 1 • ._......_. _______. , < IIIIIMI"Nill. •° . i 1, , 1 i I , 1 1 v r 4,1 ; i Bergersan - Caswell Inc. PRIP xt� Ind St • 1b aplo Plain, IAN 55359 13L.RGERSON-t'ASW (763) 79 Fax: (763) 479 .lulu 17 2009 Jorgenson Construction, Inc. Atm: fir. Steve Gansmoe ,..••••ir Re: City ol'Oak Park Heights, New City hall. Geothermal loop field location. Steve. The original site plan indicated the probable area of the geothermal wells. I spoke witli the mechanical engineer prior to bidding the project in regards to an unlabeled dashed line on the site plan which ran through the loop field. 1 was told that line was an easement line for the power company. I then spoke with Mike Lueth and informed hire that there was a required isolation distance from power lines and we needed to know how much voltage was in the lines to determine the distance. Mike contacted the power company and found the KV running through the power lines was 345. I informed Mike that OSHA requires a minimum isolation distance of 10' up to 50 KV, and an additional 0.4 inches for every KV above 50 (See attached OSHA Requirements). This would require a minimum separation of approxilnatel 20 feet vertically and horizontally from any part of the derrick or load. This effe tivcly eliminated the possible use of productive drilling equipment in the proposed probable loop field location. We have evaluated the use of other types of drilling rigs and the minimum set back requirements restricts the use of • most types of conventional portable drilling equipment. As you know, after our initial pre construction meeting we measured the distances in relation to the building corners and power lines with Mike and Randy. Again, it ww•as obvious that the loop field could not go where initially proposed. There were a couple of alternate sites proposed. each of which had complications with either (1 ).The required isolation distance from power lines. (2).Thc construction timing and system tad issues. Splitting the system with half on the cast and hall in the new parking lot arca where the existing building. sits would create problems with the heatinglcuoling loads as only half of the system would be installed during demand periods until the existing building is removed and the remaining h.aifofthe system is installed. (3I.North of the power lines in the native grass area We don't consider this a viable option given tlic area required and distances involved. This option (if allowable) would require the addition of a geothermal vault and extensive directional boring adding substantial cost. (4 ).\Vest of the new building. Not enough area. property line. and wetlands. (5).Drilting deeper bore holes into the bedrock to reduce the amount of borings necessary would nearly double drilling cost. (6)12c-diming the distance between bore holes would require additional bores to meet the building load requirements cancelling out any advantage. Bergerson - Caswell lne. 5115 intim -mai Street • Maple Plain, MN 55359 Telephone: 763 479 - 6024 Fax: 763 - 479 -- 2i$3 k: Ma +il: info@BergelionCiewell.com • L �� e tel the only viable option for the loop field locution is east of the • new building with as 1'<ir a set back as possible to reduce neighbor sensitivity Untin•tunately this option would require the removal of some trees. Although the benefits are minimal, we have determined. that if we are ' r able to consistently achieve a borehole depth of l �S' the total bores required can be reduced from 104 to 102. See attached report from Ground Loop Design (OLD) indicating 102 borings will be sufficient to meet building load requirements as calculated by M&E Engineering. Restecilully, i, l /,r Dave T`c-e d 1 is M. David Henrich, Project Manager Division Manager • 1 • _ . .. .. . " . . . . . ,.. • . . ... . .',.,.,: Subpart N - Cranes, Derricks, Hoists, Elevators. and Conveyors §1926.550 (b) • ._ :-=:-..,: - • 1 - - '•••:1 Su.bpart N - Cranes, Derricks, Hoists, 110 GuardraitS, handholds. and steps shall he provssied on cranes • or easy access to the oar and cab, conforming to American Elevators, and Conveyors National Standards Instaute 830.5 • (ii) Ptatforrns and walkw nr ays snail nave ai-skyi surfaces , .:::;' ,;:;' § 926,550 (14) Fuel tank filler pipe shell be located in such a position. or Pm- • tected in such manner, as to not atZow spill (a overflow to run 3.,:li Cranes and denicks onto the engine, exhaust. cr etectrical equipment of any i ,,-,=..,:•.. :' (8) General requirements. machine being fueled. (1) An access be life ening:Asher c,st 58C rating. tar higher. Shall ',.f.:4; ‘ 11 2 ant:foyer shall comply with the Manufacturer's specritications be available at atI operator Station Dr cabs of equipment ' ' a pd arnital,ons applicatle to the operation of any end ag cans :!',4 • ',..;'.'. and derrlci‘s where manufacturers srmciftcatons are nal avail- ti h Ag 1,,ws $pag r,:e transporreu 4..t.orad. erd rriindled to net ".he - .,, - ere. the limtattoris a.ssigned lo the elpuiprre.rit snail ',se based on ru ies, .,st s F pt mid pen when fuel •s !ma:snarler; by the determinations ct a cuel.fied enceneer competent x, this teld vehicles on pubic highwayS. EN:Apartment cr Transborle.tion • 'al i ftl• and such de-term:nations will be appropriately documented and rules contained n 4 q CFR Pans 177 and 3? COhreming such e. worded. Attachmene; iced mei cranes shall not e,xceed the vehicular Iran -equity' are coca; ed ant 4•5f: c apacity_ ratirg r„a Scope recommended by Me 111341 k '5) Except where eleetncat distrbuson and tierisision lines (2) Rarer/road c,ripadfies. ard readtenenOod Operating sbeedS. Sps- peen deenergized and vrsitty grounded at pt of won or ;1. cal hazard warnings. or mistmiction. Snail te consprcuously coved were insufahng b3rrie(8. not a part ol or en attacriment to rho -eifi• on as a:own-tent Instructions or warntngs Shalt de v to the : equipment, or maChnery, nave ttsaieni erectee to Pre•rert Pf'1 • operator verde he ts at hal contrhi stator: COntect wan the eneS. L?0vr:;Mr rP riarhOO5 5: be cirle!oled • , 1.• (3) fReserveci croximale to orriset liatee tray T acrorterre wdr. Me 'ccowiro • i ? (4) !land sitraS trt .•:rerne ' •terrica operators snail Se Mose ale, :,) F=21' fone$ rated 5t; a•V cr r.•; T.r ..ttearendia b . sc oped by the adola.-,eitie, ANSI standard or the type of crane in Me tines and any part of the cmne ry Inad shall : '0 leet: * -- 1 W. 1..s.a. An illustration of the Sir he. e posted at the ;ob. site "lil For fines rated over 50 :1; V. m rurn de:3ra nr:e between the L-:. (5) rke ernpioyer s.harrdesigram a coriperc-ra peraon VittO shall inspect loes and any pan ol the an Or load :inall b,4 117- teen piii,l L. ail rnachineri and equir.-went no to aeon , ..r8e. and 0.in g use. !is 04 inch for each 1 10. over S. ...`.,. or tw,ce V ): make sure it is 'in sate operating concfition. Any defi6encies sn,all . fine ipso:My Ors never less Man 10 teer I i Tr ' I be repaired, or detective parts replaced. before conteiued use. :ill) In !lama withrie .'oad and boom le&verc-d. the ecLipment clear- ance min 4 kV.. , (6) 4 tPrernugh. ennoai alSpeCtidd of he nOistra macrainerf shall he shall be a irpon of feet Or voltages less than 50 made be a competent person . or by a gPvernMent Of private 4 IQ fait for Yr.rageS 0ver 50 lel Up 1V e.nri inc'.cing 345 , agerce !et:op Py the 1) 9 Department et Labor The kV.. and "15 feel 13( ve.titac.„ ...-.z to and inci•o• g 750 kJ employer shalt maintant a record of the dates and results ot , f. ■ A . c.vrs.....v■• snag Lte ; ::o obsorm feararce ir• he e insnections for eacn hoisting machine and piece al ersopment riYa and give timely warni for all .Ors whe t ii: i'lil- riti (7) Ware f oce falai be talker out of service when any cf rine tallow- ticuit tor Me operator , a meireas e zes00,-.3 , .:;.. int; nOr05Vr:5 arJsf• ,: F.:Jai 1 a: oa li) In rennmg races. six iandoraily distributed onaken wires in one • , i Cape-ri,ne boom guards. en 5,..i.7.1.1-g *.r WS. ,•• • •C- - lay or three woken wires in one strand ,ri one 13y. devices may be used on rrenes. h1 1 It5:?. ot such riesires tilt Wear i.:af une-11'1r0 the ongnal diameter of s:de indwiduial Sheil nal a 10e reqwremerlis 01 any other reguiario•1 oi :h -.- - rnres. Ft Acing, Pa:Sting, bad pagng, or ary omer damage pan even 4 slid ae.-see Is, re0ta:00 by 13w Or regwandn 1 Cr .• cx reStatpng-1 oq2.1.Ortidd ot ele rt »irk:Et-14re". 0411 Any ovetnead 111045 101411 oe 0004i0et00 10 au an ariergiaad w. er E,,,.thi of ar:y !wag loge rolyrr any Citese: lire urtle,ss and until the pes.or. awning sucin Line 00 1115 elec tribal Wain/ autharitiez indicate mat a is not an enermzed 1:re CI , (iv Reduct.OrL; from rtOrunOi diomere. rot more. Men rre-sixty4ourth a - - and 3 has teen visibly grounded hen for diameters '_In II, and ,ncluding t,vs-sixteenths ricl-i 0415 ,Ch '07 *P.M:a:era !nree :nor to Y V Prtor :0 work rear transmitter rowed tenere an elecerai cnan-f.t e, , c ta • and ncluoing pr-i1 inch 0'r5e-siattyiterths .r.cri '00 04304- can be .nducce. •n the ego:or:tent ur 1114515' 31:3 hemp rLaP• a ,,,' :; mem nine-sixteenths non to and rdrudIng three-fourths {non. died rne transmitter snarl Pe 0e-c: or tests srah ..2.... • • one rich ior drernelers reven-eighths rch to '1 1,8 l Isr 0411105 cnes n Idust:re ee 1halw-secr•da. ay:11 '04 d;arnepirs 1 1. a ••0 1 1 ncneS snClur.1rre. made 10 determine , 1 0-5017 0.31 c9arde is nduced on the crane The ?oliowing p711715 shalt be ;akar whe^ -c..0 essary ra das.sizate lay.teoed - • ..... ..L. , P44104 503 '00045, 711043 than 1110 rgoKen %vies .il One :ay in :1,: Pie eatarameet sa ::7•••ff pro Wee '441' an ilertnna. ;on SecItons beyond end connections or more than one brotAen dattictly te tfle uol.ser relating 45111.011414 aupportalg Ite irate at an end eenne.ction boom: and (.;it wire rope safety !aeons shaa Se in accordance with American .4; Ground spree r caeas snat Pe artaetY-20 to mate-rats nein National Staodaros ertatite 5 :Fail.:"..-1.9^68 or 5.50.5959-1966 hana-ed oy boom ey.serrient when oleo:near charce -s (8) 84vr.s.' ?Mara% shafts. oulieye, Stecoltelsi aProtlea drums, fly wheeis endue:ad whde working near energrzers eansrnaters- C:rew5 l cntons. er other reciprocating, rotating, or other moving parts pr Shalt 7145 efOVIO6d with nr.taciondentive poles having 3145 equipment shall tle glafcbsa it such pans are exposed to c0411te05 alligator clips cr caner sanilar oroleabon to anent, 'he by employees. or otherwise create a hazard, Guarding shalt CrOUdd cam to me load. meet Ile reqUirernent5 01 the American National Standards ;c1 Combustible and flammable matergaz snail oe remo.Jed Irn-m institute 8 15.1-1958 Rev,. Safety Code for Mechanical Power the immedrate area p7101 10 oc-eratons. Transmission Apparatus. (16) ND Modifications or eddl which affect the capacity or sate (91 Accessible areas within the swing radius of the rear Of the toter operation of the equipment s,•hall be made by the empioyer wrthout the manufacturer's written apipmvai. 11 such mod,fica- one superstruCh.ire of the crane. either permanently ar tempo- rarily mounted. Shall be barricaded .A suCh a manner e.s to lions Or thartges are made, the capacrtry aeeraean, and maw, prevent an employee horn being struck or crushed ty the crane. tenance instrualtan plates, tags, or decats. snail be cnanced • (10) /15 exrlaitSt apes shall be guarded Or InSulated An area S where accordingly. In no case shall the anginal satety rector Of ihe equipment be reduced. • contact by er.nptcyees is possible in the performance ot normat duties (17) The empfoyer shag compiy -with Power Crane and Sitauve Assc- (1 1 ) Krberever 45414500181 0051#X157 engine powered equipment nation Motile Hydraulic Crar.e Standard No 2. exhausts in encioSed spaces. 1455417 51,811 be made and recorded (181 Sideboom 01311455 4305111000 on or11001 at , oraytter tractors snail 10 See that employees aTe not exposed to unSate conoentra- 4345457 1158 requirements oi SAE J781a tiOnS o1 10100 gases Or Oxygen deficient atmospheres. 410 AaTemproyees shall de kept clear at loads about to s'e , l1 . 1.50 (12) 44 wet-dales 471 01103 shall be 01 safety g4ass. or equivalent. that and 01 suspended loads introduces no visible distortion that '0141 071450145745 with the safe 151) Crawler- lobbtreeliee- and lruck 0 operation of the mach:no 0) Alf its sha0 have pozatve 45101114 10 prevent tnea movement ot more (13)(1) where necessary for ricy4ng or seryte4 requirements, a tad- than 5 deg. above the straight line of the Ad and boom on craweul . der. or Veda, shall be provded 10 91116 access to a cab foot 1Ronaf type crane booms The use *1 cable type bogy ditpgs dereS nC storstaute compliance 't,ah this rule. 319 • ... , .. . ••• - • - - --- -- • .. . . . .. . .. .. I . .. • .. ....... . ..... I • II • - - - • • D 0.: V ' `5 0 0 .0 - V .. ...., • - c --:- -c,- .. a.... "i". t..., ammi.co , 17.'.. •-• c c = • , = .-.7. a; 0. v.; -- = .„. t., --0 .r: - r. --• r,... ,c 0 ...., c - -. .,-, - : 0 - >-. r. , - • - 0 - - .f Zi. 0 , -••=•-•• 0 ,- ( 0 . -...---. c ...... CZ ,..: ,,,, r.. CZ V - ...,•-• ■-- 6. ra ,. "C = .i ... &,:, •-• ... r: .........-• V W .M -". "="' CZ 1:3 • - cr co F6 --z, -. -_--, 4 • - , t't fZ, • 5 -..: 0 ,.. ,••••• 0 00. - 1,:i - Eh ti . _r_ t 0 -,c; s... 0 0 ,,,-.._,,_ ■r• ay .- >, 0 5 0, 0 V 7-1 "' " •■••.- 1... •-• "0 0 6, ..c. 0 u 0 _ 7„.-1,-, _ 5 F , .,...=, - - E ..= .;._ ° -:-- ,..) 0 7 0 - a ,--.1 - P. -o .. - -=.' _ ■-. .r.,-.. = ,.. .. ,,.,, -a ---, ‘....„;-- c ---- 71 lo ...c._ r. - ..2 es 7 " '''' - _ • c -.-- - ......, s..... :."-, ;,--... :...-_- re ,t 2 ,,,, = - c;„, r: ,, s=t :-.... c . , ..... -... .:, '74 V: C.) . tc ''' ..-• V :::: ...... h = -5: 0. , E -, w ka q.) "-- ' 0 0 - in g 0 -- ::: -,-,-E ..- zi.c.ion. C•J • •••• r. 0 0 V .0 .- '-' *,-. T. CD C) 0. ...-•'- 0 .-- " ' S ".. ..= Fr- = ...,. - 0 .... - .0 •-,..- ••-• - ,...: G ...., . :-...- a - u - .- - 0.. - *0 Tc ti. ; ,.. ... :- ,r• V '`', c. r... 0, Zr., c ? F5 g ... . - e'S 0 ..e r.., . ... . , ..-. ..., ,e ,••• ut Lo •-• ..... y.., 43 ,.." ..., :: ".. ..-• , J ,ft ..... ' i ". : r • - _I • ' - , . . .- = 1 , • 5 ? - • = 1 - ,,, = - 5 'E' r• ••' ,.., - =1 a- ▪ - a .r.. .... . - ,....„ ,-;-,. 4 -..-- - - -- :'-• !, -i, Ci... Sa 50C E . 7 .. n 0 2es 2 o co c 0 - = it, 2-22 . -, To 0 C - • 5 v - ". '' T. = V 0 ,.2 ' • .. 1. 1.7 ,.. t..., .7., , ..„. ,,,-: ,!....;_, c,.. n .... ■-• 7 ...... am+ i''' .54 t ..'2 :".. Z., ■ >, = .. M; ° 2, ::: $2 t li ....... . 0 C C.) .rt - • I . ;1 3 ''...- : 7 r " . = : ' - . ;", rt C' ,.. L ;,, r 1 ,'" CI „ ,' 4, C:2•■ - :47.. . - .F.. 0 - ti , 0 0 'J. •,.• 0 0 . .::: .- I ..-... ,--' '.7. =" .1 cr,, '... .70 '.., r3 .0 = --. - 0 f.." i- ". :4 GOY U -= s' - 0 C .9 • 0 °- - „. 7) ..= -• - ..„,, V -,,;,_- _.: i.- ...,. r.::: ..,,T; T.; = .5 ,•: 7. t.1 .‹. V .r.t. :7 V . • - C -.I ... CIJ o .-. ,...... ..-, ,.... ;= C%.3 • 1•••• • 8 • (.." C ...14" 0 C% ...r., ; • a _ •-- ,•=• kalmiti? 1 ../. Z. a ■." .1.. = ...„ .... ,... ..., ,..- _.., _ 1 .. „I- - •-,,. .= - !...,,, - :...7. rr -.----' •ft ---) ) f.'-' = t. - = .-4, =::,"• * " c "" - 3 >■ • t--: -I 0' ...: ;E !,-,,, ' - --,Wziztzg,:; - -- t.,. - t.. - 7,: - ,,.. mpoil, Ili _ rz, -- . - . -. ▪ ,.. • ,..,- ti. • t J (I) 1..0 u I •-; -r- - ? C. < ',, \ LJ > - LU ,.. ,t.' ,... - ..) -, .." :'.."' i 0, = I • (...) 1 7* CC cej •-• ▪ "-* :./' < Cl. ',I c < > .• x ,....i - c Ill - co . 7 - ,.., )., ... ,..., '---• - •-• c. : - -' - - c6 CC 0 c4 Ili < 0 ... • ,,,,,, 4.• C., C..: :1.1 t" LI- •■■ • .E 7: ". ;14 tii 0, 2:1 7 'r -7 •• ,,,: te) = u., Cs1 ... , it.' •-• -. - .... - .. •-• 75 . :4 .. •=:: .., • ...„., _ . - s---- 5 _ ▪ r.. ;;;; :.% -------- . ,.... :....- F. z ...: -.; = E -a ,-- ..:-... ...7. ..--" \\ ,... ',.= ...... 1 : = .., ..?.. • r'. „.. •••• .Z ..-. ,...---- ...4 .17, • • . Ill • . • Ground Loop Design Borehole Design Project Report - 7/17/24)09 .___ . ... . _ .. Project Name: Oak Park Heights City 1i11 Designer Name: David Domicil i f I Date: 61112009 Project Start Date: 722;2009 Client Name: Jorgenson Construction Aihirtes Line 1: 14168 Oak Park 1,41vd Ai !dress Line 2: I City: Oitik Park 1 lights Phone: State: MN Fax: Zip: Entail: - . • .„ .... Calculation Results . • COOL1N(; 11CAT'ING . ... .. .. ..• . . „. ... ......... ...... Tote Length ill): 15300.0 15300.9 • Horehrik Number 102 102 , . BoreholeLength (10: 150.0. 150 i , . orinand 'leinperanne Change i'l• J.! 4'14.7 0.0 ono Mkt (Wu 88-5 60.9 'Livid Outict ("F): 98.2 53.7 • gid l!iiii Capacity (kiltnilli( 587.0 725.7 Pcak Land tliBtoilli/ 587•11 328.2 Peak Dernand rkW) 13.1 11.6 . . llent Porno 1:,111i1, (./P 17.7 8.3 Sys Con 1,1,1.1.,ki0P: 17,7 8.3 . III Si Nem f•ilii%i Rare ! apriisr. . .... . . .146.8 82.1 Input Parameters Fluid Soil .. ... ..,.... . ... ..... . ... : Flow Raw 3.0 gpinitan ( imund '1etnpernture• 19 0 "r ; Fluid 25 2% Propylene 511yeril Thennrd Concluelivit • 1 22 15teir 11•4 Specific Ilent iCp): ii.96331nIrTibtin lisennal Di flbsiv it.!: 119t)6'21day : Ilizmily( rho), 64,0 lik,11^5 i — . Piping . . .. ... ...., ..... _ . . . .. , Pipe Type: AM in i 2Ik him I Hoyt Tine- 'Naar/eta - SDI-( 11 ripe Resistance 0 104 hilto'iriBui 11.'Inhe Ciairigu rattan: Sink . Radial Pipe Placement' Alone Outer Wall Botanic Chaim:lei. 4./5 in . Grout Thermal Conductivity; 0 57 BIll?(IPW'r} Borehole "thermal Regig000r: (524,5 li' c't*VitAta , . . . . . .. . ........ ... . .. . . 3 i 3 • 0 Input Parameters (Conf.) . . - Pattern Modeling; Time Period — i Vertical (kail Atraneement. Se (lid Fric ISorchfik Number: 10? Piaal)ct)in Time. 15.0 ■cArs Rim c.holc Sri 411 di 11)1t. Sh! (1:4 Flt: Long Tom sod lempMturo Mud per l'onillel C. mini See Grid Vile root, tw 65- FiNvd Length Ntutte (Th //coot... 49 1. t ir id Fill.- fruporlcd l'k: 0111 (irk? l.ife.txt . ....._. _ Heat Pumps Optional noilerft.'ooling, Tower i - ....„..... I londu !lent Pinna 1...met 1 I ticno,' WP Series (Water to Wafer) I Load Balamv 0 "it 0 1)esign Heat Pump tad Load leinperaturcs, I Capni2i(y tkihultlr) 0 0 01) Cording (If ft) Heat ing (Da) I Cmling Towtr Flaw Pale (gym) 0 0 Wale' to Air o7 1: 70 '8 1 Cooling 8:inv (1') 9 2 Water to Water. 55 9: 1(30 9 Annual Operating. I lours rhvyr) 0 i I , I. • . - . . Extra kW Loads File . .. 0 01,1% (Wit, .-c,r) ( cohm.5 lowc.r l'uinp 0 0 kW Cooluig rouct I:an 0 0 k9 Acklilitma/ V 054C1 0.0 kW . ._. .. . _ . . Loads . . . _ . - . . Design Day Loads fieei+ Goins /) ! Annual Filivalen11')1114 Arad lloor Tem, qf !kr, rilftii.lb7 ikanighl COOL/NC; 1104 If0_11 I 393 d r W i • I li an No - on Noon - 4 p.m 232 I 5:37.0 321i 2 4 ) q DillY3 Oesaip pee ek . ? 0 4 pin. - 31 p.m, 232.1 9.4 . . . . 232 1 9 1 ) Nionthly t, apu:13 on Next Page . . . „ . 2 13 • • . , . coo., _. . ... .... . livatiug . : - Ftt6a1 .11:131u) Ptak tk.136.11110 'total (MAO Peak !4,1161110 ..la MU rl 141 20 4359 323 February 417 41 27802 293 • •' Nlarch 21481 205 11031 157 ApH1 60908 293 123 20 : May 136870 514 0 0 t Jkow 181123 518 0 0 : July 216710 587 : 0 0 August 205098 583 0 11 SC MC nfinr 127593 376 Om bre 65158 317 133 32 Nov ern tvr 13992 219 7663 (50 I I)eceother 158 23 33496 _ 127 . . . .. . .• . . Total 1035589 129107 . lictor5mi Polk 3.0 3.11 I • 3 3 . • PA • rage ioii Steve Gansmoe vvom: Bonnie Jorgenson [bonnie@jorgensonconstruction.com] Wednesday, May 13, 2009 3:41 PM • To: michaellueth@buetowarchitects.com Cc: 'Steve Gansmoe'; 'Glen Schlichte' Subject: Oak Park Heights Attachments: Oak Park Heights Recommendation Letter 051209 (2).pdf Mike - Attached is the power line safety assessment for Oak Park Heights City Hall from Hilmerson Safety Services. Bonnie Jorgenson Jorgenson Construction Inc. bonnie@jorgensonco.nstruction.com telephone: 763-784-3877 fax: 763-784-1583 This e-mail is confidential. It may also be legally privileged. If you are not the addressee you may not copy, forward, disclose or use any part of it. If you have received this message in error. please delete it and all copies from your system and notify the sender immediately by return e-mail. • 5/13/2009 • H I LM E RS O N Hilmerson Safety Services, Inc. 952 - 224 -9390 (office) • Safety Services, Inc. 952- 224 -9392 (fax) Lisa. Hollingsworth @hilmersonservices.com www.hilmersonservices.com May 12, 2009 Bonnie Jorgenson Jorgenson Construction, Inc. 9255 East River Road Coon Rapids, MN 55433 Re: Oak Park Heights City Hall Project Oak Park Heights, MN Dear Bonnie, On Tuesday, May 12, 2009, at your request, I conducted a site assessment visit to the Oak Park Heights City Hall Project. Glen Schlichte, Project Superintendent, with Jorgenson Construction, Inc. accompanied me on my assessment. We looked at the area where Bergerson Caswell Inc. will drill their Geothermal vaults. The vaults to be drilled are located directly below the Xcel Energy 345 kV power lines that are approximately 30 — 35 ft. off of the ground. Glen Schlichte informed me that the Bergerson Caswell Inc. drill rig has a 40 ft. tall derrick that would need to be placed in the area directly below the power lines. Under the OSHA CFR 1926.550 (a)(15)(i) & (ii) Standard this equipment would need a minimum of 20 ft. of clearance between the drill rig derrick to the power lines. The following OSHA CFR 1926 Standard applies to this situation: Standard: 1926.550 (a)(15)(i) &(ii) Cranes, Derricks, Hoists, Elevators, and Conveyors • 1926.550 (a)(15) Except where electrical distribution and transmission lines have been deenergized and visibly grounded at point of work or where insulating barriers, not part of any attachment to the equipment or machinery, have been erected to prevent physical contact with the lines, equipment or machines shall be operated proximate to power lines only in accordance with the following: (a)(15)(i) For lines rated 50 kV or below, minimum clearance between lines and any part of the crane or Toad shall be 10 ft; (a)(15)(ii) For lines rated over 50 kV, minimum clearance between the lines and any part of the crane or load shall be 10 ft. plus .4 inch for every 1 kV over 50 kV, or twice the length of the line insulator, but never less than 10 ft. It is my recommendation that the area to be drilled in with the Bergerson Caswell Inc. Drill Rig would be in violation of the OSHA CFR 1926.550 (a)(15)(i) & (ii) Standard for the safe approach distances of equipment operating near high 345 kV power lines. The project should consider another method or location for the safe operation of this equipment in this area. Please see the attached photos of this area in question. This report is based upon the information supplied by customer personnel and /or on the conditions and practices observed at the time of the visit. The report may not list all unsafe Conditions and practices; others may exist. This report is not an endorsement of and it may not be used to endorse or promote any practices. procedures, or products. The survey activities or any recommendations in this report are designed to assist the customers named in the report in the management of their own safety activities and should not be construed as legal advice. The responsibility for making changes in the operations, procedures, or for implementing any recommendations is the customer's. All warranties are hereby disclaimed and no liabilities are assumed to any party for any damages that may arise from the use of or reliance upon information contained in this report. • • r Should you have questions or concerns please don't hesitate to contact me at (952) 454 -1986© or Email at Lisa. Hollingsworth @Hilmersonservices.com. • LISP HDLLv gsworth Lisa Hollingsworth Sr. Construction Safety Consultant , • • t �.' $4 A,y z 3' Yr Lr T S e This is the area where the 40 ft. tall Drill Rig would have to sit. The distance to the power lines is 30 -35 ft. • This report is based upon the information supplied by customer personnel and /or on the conditions and practices observed at the time of the visit. The report may not list all unsafe conditions and practices; others may exist. This report is not an endorsement of and it may not be used to endorse or promote any practices, procedures, or products. The survey activities or any recommendations in this report are designed to assist the customers named in the report in the management of their own safety activities and should not be construed as Legal advice. The responsibility for making changes in the operations, procedures, or for implementing any recommendations is the customer's. All warranties are hereby disclaimed and no liabilities are assumed to any party for any damages that may arise from the use of or reliance upon information contained in this report. • 1926.451(f1(6) The clearance between scaffolds and power lines shall be as follows: Scaffolds shall not be erected, used, dismantled, altered, or moved such that they or any conductive material handled on them might come closer to exposed and energized power lines than as follows: *Insulated Lines I I Voltage 1 Minimum distance 1 Alternatives 1 I I Less than 300 volts .1 3 feet (0.9 m) 1 300 volts to 50 kv. 1 10 feet (3.1 m) More than 50 kv.....1 10 feet (3.1 m) plus 1 2 times the length 0.4 inches (1.0 cm) 1 of the line 1 for each 1 kv over 1 insulator, but never 1 50 kv. 1 less than 10 I I feet (3.1 m). 1 1 *Uninsulated lines • Voltage { Minimum distance 1 Alternatives I I Less than 50 kv 1 10 feet (3.1 m). 1 3 s More than 50 kv 110 feet (3.1 m) plus 1 2 times the length of �� 1 _ 0.4 inches (1.0 cm) 1 the line insulator, K y 1 for each 1 kv over 1 but never less than 1 50 kv. 1 10 feet (3.1 m). .29 5 lot 1 Exception to paragraph (0(6): Scaffolds and materials may be closer to power lines than ? 41 S q ,, specified above where such clearance is necessary for performance of work, and only after the utility company, or electrical system operator, has been notified of the need to • work closer and the utility company, or electrical system operator, has deenergized the 9 83` lines, relocated the lines, or installed protective coverings to prevent accidental contact with the lines. 1St 5O I 1 4 1d 4/" X d skV : q , $31 Michael Lueth, LEED ® -AP Project Architect 1 53 Buetow and Associates, Inc. 2345 Rice Street, Suite 210 St. Paul, MN 55113 Phone (651) 483 -6701 Fax (651) 483 -2574 1 A /FN .. • ety B- a� Page 1 of 1 Michael Lueth • From: Michael Lueth [ michaellueth @buetowarchitects.com] Sent: Tuesday, March 31, 2009 10:27 AM To: 'Michael Lueth' Subject: OSHA Standard 1926.451(f)(6) The clearance between scaffolds and power lines shall be as follows: Scaffolds shall not be erected, used, dismantled, altered, or moved such that they or any conductive material handled on them might come closer to exposed and energized power lines than as follows: *Insulated Lines I I Voltage I Minimum distance 1 Alternatives I I I I Less than 300 volts.l 3 feet (0.9 m) 300 volts to 50 kv. ► 10 feet (3.1 m) More than 50 kv 110 feet (3.1 m) plus 12 times the length 0.4 inches (1.0 cm) ► of the line ► for each 1 kv over I insulator, but never 50 kv. 1 less than 10 feet (3.1 m). I I Uninsulated lines I I Voltage ► Minimum distance I Alternatives I I I I Less than 50 kv 1 10 feet (3.1 m). ► More than 50 kv 110 feet (3.1 m) plus 12 times the length of 0.4 inches (1.0 cm) I the line insulator, l for each 1 kv over ► but never less than 50 kv. I 10 feet (3.1 m). I I Exception to paragraph (f)(6): Scaffolds and materials may be closer to power lines than specified above where such clearance is necessary for performance of work, and only after the utility company, or electrical system operator, has been notified of the need to work closer and the utility company, or electrical system operator, has deenergized the lines, relocated the lines, or installed protective coverings to prevent accidental contact with the lines. Michael Lueth, LEED ® -AP Project Architect Buetow and Associates, Inc. • 2345 Rice Street, Suite 210 St. Paul, MN 55113 Phone (651) 483 -6701 Fax (651) 483 -2574 3/31/2009 1 I • Thermal Conductivity 1 Test Report • Bergerson- Caswell 1 Inc. � Job Location: Oak Park Hgts, MN 1 Job Number: 0 8-H -26248 1 Prepared By: David Henrich 1 • Prepared For: City of Oak Park Hgts 1 1 t :Fs. ii Jr Bergerson - Caswell Inc. _._„__. _........_ EMIL ■ 5115 Industrial Street BERGERSON-CASWELL Maple Plain, MN 55359 „„ c. `„� P 4 _),Z tT l? D (763) 479 -3121 Fax: (763) 479-2183 1 Test Boring Results & Formation Thermal Conductivity Analysis 1 Project Name: City of Oak Park Heights • 155' depth Project Location: 14168 Oak Park Blvd. Oak Park Heights, MN 55082 I Requested By: City of Oak Park Heights I c/o Eric Johnson 14168 Oak Park Blvd. Oak Park Heights, MN 55082 1 Phone= (651) 439 - 4439 1 • Test Date: January 7 - 9, 2009 Test Bore Drilled By Bergerson Caswell, Inc. 1 5115 Industrial Street Maple Plain, MN 55359 I T/C Test By: Thermal Dynamics, Inc. 5115 Industrial Street 1 Maple Plain, MN 55359 1 Report Prepared By: David Henrich, Division Manager 1 Thermal Conductivity: 1.22 Btu/hr °F 1 Estimated Diffusivity: 0.99 ft /day Native Soil Temp.: 49.0 °F Bergerson - Caswell Inc. 5 115 Industrial Street • Maple Plain, MN 55359 I Telephone: 763 - 479 - 3121 Fax: 763 - 479 - 2183 E -Mail: info @BergersonCaswell.com 1 1 Executive Summary One test boring was drilled during this project to 155'. The test boring was drilled to 155' without any abnormal drilling conditions. It was decided at the onset of this project that we would try to avoid drilling into the limestone that was known to be around 150' bgs. We recommended not drilling into the limestone because it would be more 1 costly to drill and could also increase grouting costs for the future project. M + E Engineering agreed with our recommendation and we agreed to monitor the drilling closely to ensure we obtained an acceptable depth to install the Vertical Heat Exchanger ' (VHE). We encountered limestone at 155', we placed a call to the engineer to verify that the depth was acceptable and with engineer approval we installed the VHE to 155'. 1 We observed no aberrations in the data collected during the conductivity test and the test was performed successfully with no interruptions or other malfunctions. This report provides a general overview of the conductivity test and the procedures used to perform the testing along with the real time plot of data used to calculate the results. The geological make up of the test boring has been included along with other pertinent information gathered during the drilling process. 1 • Drilling Results Drilling Date(s): December 29, 2008 Drill Time: 3 hour 0 minutes Loop Diameter: 3 /4" Drill Log: 1 Depth(ft) Soil Description Comments From To 1 0 30 30 Sand, Gravel, and Clay Medium 100 Gravel and Boulders Hard 100 120 Shale Soft 120 155 Sandstone soft ' Test boring was drilled using mud rotary drilling techniques. Upon completion of drilling, the ground loop was installed immediately and grouted to the surface using high solids bentonite in the glacial drift and neat cement grout in the shale and sandstone 1 layers. • 1 • City of Oak Park Heights • Oak Park Heights, MN -2- 1 1 1 Formation Thermal Conductivity Results • I Test Date: January 7 - 9, 009 Formation Conductivity: 1.22 Btu/hr -ft - °F 1 Est. Formation Diffusivity: 0.99 ft /day I Undisturbed Ground Temp.: 49.0 °F Test Duration: 42.33 Hours 1 Average Voltage: 206.96 I Average Amperage: 14.58 Average Power (Watts): 3,018.06 1 Avg. Power per Foot (W /ft.): 19.47 I Test Period Analyzed (hrs.): 12 — 42.33 Graphed Results: 1 FORMATIONT.C.TEST FORMATION T.C. TEST y= 4.344x 4- 73.31 1 1 100 AVGVVA I tIt F. 90 fir- i 8 0 - TEMP 80 ♦AVG WATER =- 80 g 70 TEMP 2 70 - Lin ear (AVG ~ 50 w 50 WATER TEMP) ' 0 50 0.00 2.00 4.00 TIME (HOURS) LN TIME (HOURS) 1 III • City of Oak Park Heights • Oak Park Heights, MN I -3- 1 1 1 Test Procedures I The American Society of Heating, Refrigeration and Air conditioning Engineers ( ASHRAE) has adopted standards and recommended procedures for performing thermal conductivity tests on closed loop ground heat exchangers. Our testing procedures are I founded on these and other accepted industry practices. Among our procedures are these: Test Duration 1 ASHRAE recommends a minimum of 36 hours of data be collected from a test loop. This particular test was run for 42.33 hours. I Soil Temperature Measurement The soil temperature was recorded using a probe inserted into the test loop down to 100' bgs. This data was collected before the running of the T/C test. 1 Time between Installation and Testing ASHRAE recommends two (2) days rest be given to the test loop to allow the soils natural properties to return. I Formation Diffusivity Lacking any procedures to perform in -situ tests for themal diffusivity, we have I made an attempt to estimate the diffusivity based on the soils encountered. The thermal diffusivity was calculated by comparing the observed conductivity to the 1 • known diffusivity of the soils encountered. Data Analysis Data was analyzed using the "line source" method of data analysis. The line 1 source method is not applicable to early test data. The first 12 hours of data are not used in our calculations to accommodate for the effects of borehole resistance. 1 Power Quality It is important to inject enough heat into a loop to simulate expected peak loads of a building. This rate should be between 15 - 25 Watts /foot (W /ft.). I All data from these tests is available upon request. 1 Please contact us with any questions or comments. It has been our pleasure working with you on this project and look forward to working with you in the near future. 1 Res ctfully submitted,__ 1 David P. Henrich Division Manager Bergerson Caswell, Inc. 1 Phone: (763) 479 -3121 ext. 202 C ity of Oak Park Heights • Oak Park Heights, MN 1 -4- 1 M I N N E S O T A Minnesota Department of Health VL - 1 C 1 Well Management Section 625 North Robert Street, P.O. Box 64975 ��� 1 1 ) 1 - 1 St. Paul, Minnesota 55164 -0975 1 DEPARTMENT OF HEALTH 651/201 -4600 or 800/383 -9808 Deaf and hard -of- hearing: TTY 651/201 -5797 Verucal Heat Exchanger Location VERTICAL HEAT EXCHANGER RECORD 1 County Name was A 1 Jc Uv7 in' 4 1( ` Townshi Name To No. Range No. Section No. Fraction Depth (completed) Date Work Completed QakQr Ic lI d,°l s N IA �/�� 155 ft. _ /off ai -© S House umber, Street 1 City, and ZIP Code of Vertical Heat Exchanger Location H l DD' eter Pipe Diameter ' k 6 7 Vat_ } k f L. '81,66., N in. to { J ft. ti. inches I Oak—' ` 6-- kk∎ c { W \ DA'Q c75ng in. to ft. Show exact location of vertical heat exc ger in sect n with "X. Sketch map of Number of Bore Holes N installation. Show ___ — _ _ _ _— property lines, roads b j j and d buildings. Pipe Material 2 High Density Polyethylene ty 1 w — — — le./ ❑ Other P��1 Type of Joint — / T ❑ Butt Fusion s e.gvc Socket Fusion I PROP RTY OWNER ,, AME n1�/ �/ V C)ak Q L� 4r,'Q Ki s ❑ Other Property owner's ling address if different than vertical heat exchanger locaindicated above. Type of Grout Used (Indicate Product Name) k (,� ❑ Cement Sand from to C ft. [Neat Cement from 1 �C) to 1 J J ft. • 1 . I'entonite from to (0 ft . ❑ Thermally Enhanced Bentonite from to ft. ❑ Other from to ft. I Geological Color Hardness of From To Type of Coolant Used (Indicate Product Name) Materials Formation /(� ❑ Water A ll.e �4� ���� -� �✓ �� El.- 'Propylene Glycol � d 111 / �� n G l � , - Itt n%V----1 .a � CI 3a � � ❑ Other Oak C p.q 0 Pressure Test of Installed Piping C •? Test Pressure (lbs.) 1 140 1,5 _ Test Duration (minutes) .3C Contractor's Certification I This vertical heat exchanger was constructed under my jurisdiction and this report is true to the best of my knowledge and belief. I _ ,. Qr Ca k G ic_ l`� t T Cone • : Business Name T License No. Remarks, Elevation, Source of Data, etc. �� 1 T Certified Representative Signature T Certification No. T Date 1 0 .4‘,A\ s c N3 049 T Name of Driller T Date 1 / ` G ai 9 T Name of Heat Pump Installer (HVAC Contractor), if different (Optional) Minnesota Department of Health Copy origs \vert heat exchanger record MDH.doc 9/5/21108R M I N N E S O T A Minnesota Department of Health Well Management Section VL Ar 1, 625 North Robert Street, P.O. Box 64975 RECEIVED ,, NIDH St. Paul, Minnesota 55164 -0975 [if RTMENT OF HEALTH 651/201 -4600 or 800/383-9808 Deaf and hard -of- hearing: TTY 651/201-5797 JAN 2 3 2009 Vertical Heat Exchanger Location VERTICAL HEAT EXCHANGER RECORD County Name 1;ti G1t� ;r _ Township Name To ship No. Range No. Section No. Fraction Depth (completed) Date Work Completed (lq- 14 lc Itt'illitS al 0 Li- sw N 1 1/4 155 ft. / - -c House Number, Street City, and ZIP Code of Vertical Heat Exchanger Location H le Dia eter Pipe Diameter \A 1 �; 7 Oak 1)�' l \, (1. l� . in. to 15� ft. 4' 4 inches ()Q 1- ' X( F-- h t V 5 5) 1 6.562a m. to ft. Show exact location of vertical heat exc 4: iger in section irwith "X." Sketch map of Number of Bore Holes Ems N LL L . �. installation. Show �■� u..liv1s - :::± — — aw;:.- ..,-,^ A o uguis* . ..: — at. °v +'a,1 -, 1.s,.. - -.! . ' - 114 'f,-..-1 4 s --- 0,. -. ... �■ 4 t. and buildings. Pipe Material �MM� 2 b Er High Density Polyethylene w E Q � ❑Other 111111111111111111 Type of Joint IA III ElliglINIII s t ❑ Butt Fusion �--- 1 Mile -- -1 t21 cket Fusion PROP RTY OWNER'S AME �/ 4 iv` � � �not( y( ` L f1' 1� ❑ Other Property owner's ling address if different than vertical heat exchanger locati indicated above. Type of Grout Used (Indicate Product Name) 1 1J . C.t' 611:""-4. ❑Cement Sand from to ft. 0 Neat Cement from 100 to I € ft. �/13entortite from � t to 00 ft. ❑ Thermally Enhanced Bentonite from to ft. ❑ Other from to ft. Geological Hardness of Type of Coolant Used (Indicate Product Name) Materials Color Formation From To l ;1eneGIcol is? g i (,,v ❑ Other ' ,� I (��j� (] i Pressure Test�ocf. Installed Piping ` 1 u• ` r 1 0, , x ..: y „.. , a1wk,x. ,, y f " , :,,.. , ,. !'.J� ., , - awv.,y6 t Yit s re�� ;'',1:t. ` , .,S, r.. s :..:s:aa [mod. � 1 dAl, Ilk !IJ TT \ O 1 55 Test Duration (minutes) 30 Contractor's Certification This vertical heat exchanger was constructed under my jurisdiction and this report is true to the best of my knowledge and belief. - 6 -..i c f ad SUJ k 141 klc.. 1, ''i j Con - Business Name T License No. Remarks, Elevation, Source of Data, etc. .� ; -., i " - � ?t)L ,, ' : r T Certified Representative Signature T Certification No. j Date 0 T Name of Driller j Date o e ! (? alo a s j Name of Heat Pump Installer (HVAC Contractor), if different (Optional) Copy for Owner origs \vert heat exchanger record MDH.doc 9/5/2008R ECKBERG LAMMERS ► >i • ATTORNEYS AT LAW Stillwater Office: 1809 Northwestern Avenue Stillwater, Minnesota 55082 Writer's Direct Dial: (651) 439-2878 (651) 351 -2118 Fax (651) 439 -2923 Writer's E -mail: Hudson Office: mvierling @eckberglammers.com 2417 Monetary Boulevard Hudson, Wisconsin 54016 December 26, 2008 (715) 386 -3733 Fax (651) 439 -2923 www.eckberglammers.com Eric Johnson City Administrator City of Oak Park Heights 14168 Oak Park Boulevard North Oak Park Heights, MN 55082 Re: Authority of the Minnesota Department of Health to Reject Plans for Heat Exchange/Use of Municipal Water Facilities to Implement Heating Ventilation and Air Conditioning and Improvements to the New City Hall • Dear Mr. Johnson: You have asked our offices to provide an opinion with regard to the authority of the Minnesota Department of Health to impose it's regulatory authority, conditions or other restrictions on the City's use of its municipal well as part of improvements to the new city hall in heating, ventilation and air conditioning resources. We answer your question with a qualified statement that MDH does have such authority. It is important to know that there are two state agencies that have potential authority to regulate or control the City's use of its wells in the manner proposed, they being the Minnesota Department of Labor and Industry and then the Minnesota Department of Health. Minnesota Rule 4715.3130 provides that prior to the installation by any person, corporation or public agency of a plumbing system that serves the public or serves any considerable number of persons, any plumbing system that has an effect on the public health in any manner, they (MDL & I) has the authority to review complete plans and specifications together with additional information that the Commissioner of Health may require. You may wish to recall that under Minnesota Statute §326B.43 the City may agree to provide this review duty on behalf of the Commissioner, however, the Commissioner has the right to terminate that agreement upon 14 days' notice by statute and then the right to review the projects of a special nature despite any agreement with the City regardless of the existing statutory framework. Furthermore, the Commissioner of Health retains the ultimate authority to enforce Minnesota Statute §326.37 through §326.45 (Plumbing • Code), now recodified into §326B.41 to §326B.49 and the provisions of the chapter necessary to insure compliance. ECKBERG. LAMMERS, BRIGGS, WOLFF t4 VIERLING, PLLP Family Law / Divorce • Business and Commercial Law • Criminal Law • Personal Injury / Wrongful Death Estate Planning / Probate • Real Estate • Land Use Law • Mediation • Municipal Law • Civil Litigation • The general nature of these provisions ostensibly provide the Department of Health, if it is intent on doing so, a position to argue that those provisions grant the Commissioner the authority to impose itself with regard to the City's plans with regard to the plumbing features to be implemented as part of this process and utilizing this resource for heating, ventilation, and air conditioning opportunities within the City Hall to impose conditions if that is truly their desire. Moreover, although there are no specific authorities to the Department of Health relative to the systems that you are proposing to construct within the City Hall, certain provisions of Minnesota Statutes Chapter 144 affecting the Safe Drinking Water Act of 1977 have a very broad definition of authority within the Department to control the provision to the public of water for human consumption through pipes or other constructive conveyances. Specifically you may wish to confer to 42 U.S.C. 300F(4)(a) which delegates to the local authority of the state (i.e. the Department of Health) the authority to control public water supplies. An example of the breadth and general nature of this statutory framework provides within Minnesota Statute Chapter 144.383 an authority to the Commissioner of Health to "approve the site design and construction and alteration of all public water supplies . . ." The language is so broad in its construction that if the Department of Health ever truly wishes to assert authority, it may well take the position that the breadth of that language ostensibly allows it to impose itself within any connection to • the City's public water utilization systems regardless of the intent or the end use. In short, although a fair amount of the level of authority of the Commissioner of Health is going to depend upon its desire to broadly construe or interpret the statutory authority within its office, there is certainly authority within the plumbing code that they could act as an obstructing agency relative to the City's design plans for City Hall in utilizing features of the City's municipal well as part of its heating, ventilation and air conditioning systems. Given the opportunities that lie there, should the Commissioner of Health truly wish to impose itself within the proc- : , ere is am. - authority and opportunity for them to do so. If you have any further questions • is matter, please f: -1 free to contact me. Yours ery t Mark J. Vierling MJV /sdb • - MINNESOTA • MDH DEPARTMENT or HEALTH Protecting maintaining and improving the health of all Minnesotans January 6, 2009 Mr. Eric Johnson, City Administrator City of Oak Park Heights P.O. Box 2007 Oak Park Heights, Minnesota 55082 Dear Mr. Johnson: Subject: Geothermal Heat Loop and Heat Exchangers for Proposed New City Hall, Oak Park Heights, Washington County, Minnesota In regard to your letter dated November 26, 2008, and subsequent submittal dated December 19, 2008, the Minnesota Department of Health (MDH) appreciates the contact that you have made with the plan • review engineers regarding the proposed non - traditional geothermal heating and cooling loop equipment that the city of Oak Park Heights is considering for their new city hall building. Also, the meeting on November 14, 2008, at the Orville L. Freeman building was a great opportunity to communicate design ideas and to discuss regulations and health related issues. We have carefully evaluated your proposals. The Great Lakes Upper Mississippi River Board Recommended Standards for Water Works (Ten States Standards for Waterworks 2007) is a document that the MDH uses as a water system design standard. In part 8.10.2 it states that "Neither steam condensate, cooling water from engine jackets, nor water used in conjunction with heat exchange devices shall be returned to the potable water supply ". After much consideration, the MDH has determined that your proposal to use the water from the municipal watermain in the heat exchange process (option 2 on Plan Sheet No. MS.1) and then return it to the potable water system will not be approved. The design clearly does not comply with the provisions and intent of Ten States Standard 8.10.2. In addition, Option No. 4 on Plan Sheet No. MS.1 will not be approved because it also does not comply with the same standard. We would recommend that you explore the use of a traditional geothermal heat loop design shown in Option No. 3 on Plan Sheet No. MS.1. We believe that this type of design has been thoroughly tested and monitored over the years, and will provide similar results while not potentially jeopardizing public health. This option is also consistent with current Green Building initiatives and designs. General Information: 651- 201 -5000 • Toll-free: 888-345-0823 • TTY: 651-201-5797 • www.health.state.mn.us An equal opportunity employer City of Oak Park Heights Mr. Eric Johnson S Page 2 January 6, 2009 The MDH has a responsibility to ensure safe drinking water in all public water supplies. While it is our goal to be open to innovation, preventing conditions or incidents that may negatively affect the safety of the water provided to the public is foremost in our review of proposals. If you have any questions about the items above, please contact me at 651/201-4677. SipQerely, , ; 4 Robert H. Smude, P.E., Supervisor Public Health Engineer, Administrative Unit Section of Drinking Water Protection P.O. Box 64975 St. Paul, Minnesota 55164 -0975 BAN:cmp cc: The Honorable David Beaudet, Mayor of Oak Park Heights • The Honorable Julie Bunn, Representative in Congress, District 56A Ms. Cathy Tran, Department of Labor and Industry, Plumbing Unit 40 V 1 • . i . 1 yo , , City of Oak Park Heights 14168 Oak Park Blvd. N • Box 2007 • Oak Park Heights, MN 55082 • Phone (651) 439 -4439 Fax (651) 439 -0574 December 19, 2008 Mr. Bob Smude, Unit Supervisor Minnesota Department of Health Division of Environmental Health 625 North Robert Street St. Paul, MN 55155 Re: Oak Park Geothermal Considerations - Additional Information Dear Mr. Smude: It is my understanding that you are seeking the following information based on some general discussions with Public Works Director Tom Oaello and Mayor David Beaudet The proposed City Hall Facility is estimated to require 60 tons of cooling at peak demand; this will raise the water temperature 1.44 degrees (F) with approximately 1000 GPM of flow through the heat exchanger. It is likely that the peak flow would be for a period of 100 hours or less per year and that the building will run at most of the time at 30 tons of cooling per hour and have a .7 degree water temperature increase. We have also not decreased the heat gain to city water with heat loss for domestic hot water production for the future City Hall. • The City would most likely operate Well Number 2, as lead well in June, July and August to capture the water from the well before going to the city water towers and piping system the city. In order to protect the water supply at all loads above 30 tons, Well 2 must be running, since well controls will be in the same building interlocking the control systems will be possible. The piping loop proposed, (see attached drawing) is 8,050 feet long and has 33,000 gallons of water stored in the piping loop system. At 1000 GPM it will take 30 minutes for the water to make one trip through the loop. Since we pump 600,000 gallons of water a day (450 GPM average per 24 hour period minimum) it is likely that water in the loop will leave to go out to meet the city water use. Lastly the City does propose to have additional controls in the main to stop the heat pump system if the water were to rise 1.5 degrees F in a one hour time period. And that the City would record on a daily log the temperature input an output to refine the system and create a record if any problems with the water system and water temperature (including well 1 and 2 start and stop times.) Please note that we have enclosed a DRAFT of a new city ordnance for geothermal use. If you are in red of additional clarification please let me know. We look forward to your feedback by ped 31 008 , Re / � eEriJ,�hnson ' City Administrator , Cc: Weekly Notes III :......., Loop • N i t ,, Future Connection -- __ -- -- -- - ! _ _ _ to Stillwater 7- 3112., J"--..' :.. J -80 Zia J 0 'Y r .. �� 3-65 �, - - WeII..2. . . ^, a cs w . .-__-.... , ''. 1 7 % ) ....._7 ;_ . .. _ . . 0.25 MG A,, J -95 No . City Hal $ 3-100 --- ._ W . Wa wer r t115 Well 1 07, ,, • J -120 i 1 STREET NORTH i° 3-3045 3 -3080 rs) J J- - 3 -145 • J -230 . 1 -125. _ - - -i fi" 3-140 $,• �,,, 3-130 8 —_ !. 8" • 3 -150 7 = 135 3-200 ��- 3-180 1 3 -185 i ' _ . _ J -75 n -1 � . • • • PROPOSED ADDITION TO CITY ORD. 1001 - REGULATION OF THE USE OF WATER AND SEWER — DRAFT! 0 4. 10 A Use of domestic water for heating and cooling shall only be considered by the City within areas served by multiple water mains of not less than 8" in diameter with adequate and redundant slow and within a 1,000 foot radius of operating domestic supply wells. Such use shall be configured to buffer and displace all thermal impacts (DELTA - T) ( must be < 2.0 degrees F as approved by the City Engineer) within and between the piping and prior to any return of domestic water to the public distrr'bution system. Implementation of such use of domestic water will also require payment to the city of an annual Thermal Charge equal to 75% of the energy savings achieved that shall be used to offset other city utility costs associated with monitoring various private systems that have elected to implement the use of domestic water for hearting and cooling but shall be not Less than $1,000.00 per year. • Prior to the implementation of any such system the property owner shall first request and secure the approval of the City Council via Conditional Use Permit. AN Conditional Use Permits issued for such purposes shall be reviewed annually for full compliance. Any person (s) found to be utilizing domestic water for heating and cooling without a valid Conditional Use Permit shall be subject to...( needs additional language here ) 4-- I ,�. 0. j . City of Oak Park Heights 14168 Oak Park Blvd. N • Box 2007 • Oak Park Heights, MN 55082 • Phone (651) 439 -4439 • Fax (651) 439 -0574 12 -11 -08 MEMO ..,n5 t M 1 L ., TO: Sue Glover s R C J'L' Administrative Assistant / BERGERSON- CASWELL INC. 1. .�N'" VIA EMAIL ONLY - » Susie €! o • • ell • m ( � FROM: Eric Johnson, City Admi • • RE: Geothermal Test WeU(s Attached here to you will find the g ned documents that you have forwarded to me this • morning. I have also attached a copy of the map that was provided by M. Lueth of Buetow & Associates that demonstrates approximate locations for the two wells. I belive this was also emailed to you. Naturally, it is your firm's responsibility to contact the GOPHER#1 system to clear non - private utilities. The City is not aware of any private facilities in the areas proposed. There is a non -city owned /controlled fiber -optic line and easement in the general vicinity of the site, but this is controlled and operated by Qwest and I would believe it would be marked by the Gopher -1 system. Please let me know if you have any questions. Thank you. CC !17/K Lvr T? -H, b i`T ti c / SC" 411 ® 1 ! ,I! . BERGERSON- CASWELL INC. TELEPHONE (763)479 -3121 • — . 5115 INDUSTRIAL STREET FAX (763)479 -2183 DCRGERSON-CASWCLL MAPLE PLAIN, MN 55359 Date: 02- Dec-08 RE: DRILLING SERVICES Project: Oak Park Heights City Hall Attn: Eric Johnson SCOPE OF WORK; Drill one test hole to a depth of 180'. Install 3/4" ground loop. Grout hole with tremie pipe to surface using bentonite grout and cement where needed. Complete thermal conductivity test. B - C will supply well permits and clear public utilities. ** *All private utilities will be cleared by client and property owners * ** Site must be accesable with wheeled vehicles. Quote includes drilling in Limestone formations. Air drilling will be utilized. Air drilling may produce a lot of water discharge. Water containment or detention is not included in this quote. Limestone may be fractured and require more cement than estimated. Additional cement used will be at price stated below. ESTIMATED COST; UNITS COST AMOUNT - Mobilization / Demobilization 1 LS. @ $ 250.00 $ 250.00 (includes permits and reports) - Drill and install Ground loop to 180' 1 EA. @ $ 4000.00 $ 4,000.00 ( Limestone anticipated ) - Conductivity test - 40 hour 1 EA. @ $ 3000.00 $ 3,000.00 • (ASHREA Recommended) - Cement grout ( For limestone / sandstone 12 BG. @ $ 35.00 $ 420.00 formations.) - Additional cement grout. 0 BG. @ $ 35.00 $ 0.00 - 0 @ $ 0.00 $ 0.00 - Additional test well, includes 12 bags of cement. 0 @ $ 4000.00 $ 0.00 Additional cement grout as priced above. - Additional thermal conductivity test. 0 @ $ 2750.00 $ 0.00 0 @ $ 0.00 $ 0.00 0 @ $ 0.00 $ 0.00 0 @ $ 0.00 $ 0.00 TOTAL COST ESTIMATE: $ 7,670.00 A • o' • . • • BY A }DATE SUBMITTED BY: / o 'mate : i for 30 days from date issued. Terms: Net 3( David P. Henricb If work ord - ued beyond that date please call for current pricing. Depattment Manager Date: 02- Dec -08 • PLEASE RETURN ONE COPY FOR OUR RECORDS r . MINIM( HA M1NTNESOTA DEPARTMENT OF HEALITI 141D11 USE ONLY Well Management Section Date St, Paul, Minnesota 55164-0975 Received ApplicatiOn No. MDI1 P.O.. Box 6497$ - DEPAEMPIttaillAtill 651/201 -4600 or 800383-9808 S215 Application Fee 1— Fax No. 651/201-4599 (4887 Heat Loop Deaf and hard-of-hearing: TTY 651001-5797 . Schematic of Plumbing Design i 1 ' Received Approved Site Plan Showing isolation DiStance:i. Application for permit to install a vertical heat exchange device (earth- R ece i ve d d couple heat loop) pursuant tit Minnesota Statutes, Chapter MI and - I L of the Holes, if Existing rules adopted thereunder. - 1 . . (NOTE: Make check payable u•■: „Nlinriesota Department of Health General Project Data to be completed by all applicants (please print or type all information provided). ,;-„t i 7) 1 Name of Certified Representative ,Licto c (.1_ , r hi h Certified Representative No. Joie) 6 , I Company Name tillit '` di ' CS O ON C � ' 1.) e , , n Company License No. i 7 ‘? 1 7 Telephone No (Including area cede) 1 . , - 1-r i Street Address .. tt 5 ( n+-\\ S1-re4- _ City, State, and ZIP Code , LL : te 0 \.ct.\\e'l _ applies for a permit to install ;1 vertical heat exchanger device (earth-coupled heat loop) as hereinafter set form or as disclosed by attached supporting, data. 1. A. Legal Description of Vertical Heat Exchanger (VBE). . Township Range Section Quarter(s) County i Township Name No. " No. No. Smallest —0 Largest .i tiat<41 l 6 ' 0:k.k., ilktiri cRei • 4 „, : ,, k,42,, i„ 1/41 \.k 8 B. Nft °on cati Site Ad res.s . &Inas ! ZIP rode A C iAt\J ,: 5503ta\ ;,.. 2. Vertical Dent Exchanger Owner Mailing Address. Name , ! L , 0 0 k r\A # • i I i-zs ....." , Address , If a coLpo 131 \ ici, . Is3 , City A .,, ,t ti I A i — State ZIP Code A C1111- 3 WIN 54) t)1 3, Property Owner Address fit different than the Vertical Heat Exchanger Owner Mailing Address). Name Address City State ZIP 4 :CAdt.t 1 i , , I 4 ; . .-- • • 4.. Description of the Vertical Heat Exchanger - Construction Detail. Please supply the following inforniation ,, ,here appropriate. If the vertical. heat exchangers ate not yet constructed, write in the estimated depths, sizes, and dates. VP , . Number of liolet : Hole De. past s) Diumetur of Pipirieis) 1 AuticiputtA Depth to Bettruck Yining Mattlial . gi fwit l temit r , iy t-Illy!A.,ut, 0 ticoutilK Nlyrial utont St nd E iltuttoime. 0 Ttnirmail:. Elthonced Bentonite 0 , th<>1 1 Tlamt o fluid , (cy<2sp.orriote oi Fttott-Gratie Prnpylent Glycol 0 tlimr 5. Description of the Dear Pump thin, Name of mama:leaner modct No, Maximum Flow Rauit gimi _ . Name d Installer ,-, Prescute Ratin u Installation Date , 'Aettlai tlf PeOpertett Maximum Mini SIBUM „. 6, Location if Vertical Heat Exchanger, Indicate the location of the vertical heat exchanger on art attached site plan showing isolation distances from water-aipply wells, power lines, gas lincs, LP Links, buildings, Joni property lines. The site plan diagram must he attached. • , As a ern of thti permit, 1 agee In Construct this vertical heat exchanger under the provisions of Nlinnesnta Statutes, Chapter 1031 itnd the rules adoptixi km der it. !: Signature Date , (C tilled Representative) thuniddiyyyyt i As a condition of „ , , s per , , 1 agee o operate and maintain this vertical heat exchanger under the provisions of Minnesota Statutes, 1. . Chapter t031; ,, , * rules :'” led the der and to zillow inspectionfiy_the commissioner or hisiher agent during regular work hours, , .. ,,, , , 11 ; -A- Date ift .. Signatur.../ .././. ' c; , ' . , - / ' wrier of Property) inirriddlyyyy) ij 1 q / ' i :., (_ _ ., r TA In ADi k.- ti 6 0 77 /4 re r &tzep tl, . 4 Ono Loop Applit,ation .trut Mumo.dot, Iv et . IIII. 14 ) / i Page l of l • • w Eric Johnson From: Michael Lueth [ michaellueth @buetowarchitects.com] Sent: Thursday, December 11, 2008 10:46 AM To: 'Sara Pippel' Cc: Eric Johnson; 'Dan J Moulton'; 'Randy Engel' Subject: Oak Park Heights City Hall - Test well locations Attachments: Geo Thermal Test well location.pdf Dave and Sara, As we discussed I have located two test wells but our engineer only requires one. You stated that the second will not affect the permit and we are not required to drill the second. Thanks, Mike Michael Lueth, LEEDS -AP Project Architect Buetow and Associates, Inc. 2345 Rice Street, Suite 210 r 1 --) St. Paul, MN 55113 Phone (651) 483 -6701 Fax (651) 483 -2574 • 12/11/2008 1 I i° a i S s • { i ‘ i 1 1 M • I I 1 . ° i z. t a, t : 01* . , k 1 t Iii ii m i3 r- 5 'l ! i l l li i r it I li I , . i I i le i E g _ _���' l ,.. .�, ...a f 111 i 1 , 3 4/ A . s ,-- at Jj i ., , i_, .- . i HEIM 1 Iiic ___ 1 1 11 r tpl i 1 _ - 4 t Ili 1 ,`_1!„,.311 — q '' 1 P- 4 7 '1—„,:,,/1 :i1„ v :',' , 7 „ , -- „, _ .. _. • I , .:„.:lia, „.„=,..1 2.. ._____1.-4.)n ri,:11 -____ gi.,___ 1 (Li o.....A i,„,..3 . „ .,, ____> . _Di, - t . ..1 , ,k, t f e IlliihrilrfiltarlITIMMINk -- °g '. _- ' �f i q / OW - blii ► . -„ , / NINIli OMEN AVE. N. I 1 1 1 . 1 a 1 a P a i 5 ._ 0 _ E II 1 J o o 4 , v m 1 ! �I Nipl -! i, 1 0 �m � 1 • > zg 'i r, fas'3' $ 1 ro s ocn i i' �1 DSO i . *� m m / ,„ • • $ i : ,,e - ems z r / B, s s 1 E % r i •••••• if id If, [ 1 II I 11 1 ! 1111 ii II 1 1 111' ill L II lit tailiiiiirl r ,T,; A y rbignnrs City Ha 41 o $rte°u oak P•� € - '.— ME A" a wsaoaw ®o._ .m «.+>�+ u m ass c°,r�wr 2. O wi....wr.n.�.a. s..:..w 114 tan.mcrm , ....,. Nut fat Ce.seestI n City of Oak Park Heights 14168 Oak Park Blvd. N • Box 2007 • Oak Park Heights, MN 55082 • Phone (651) 439 -4439 • Fax (651) 439 -0574 December 9, 2008 MEMO TO: City Council Members FROM: Eric Johnson, City A • • i • r RE: Geothermal Test ell - Quote/ Should the City Council decide t 'at it es to proceed with drilling test wells for a GEOTHERMAL application, the City as been provided two quotes, see attached. • Mineral Service Plus, LLC - $8,720 (additional $6,120 for 2nd well - totaling $14,840) Bergerson Caswell Inc. - $7,670 (additional $6,750 for 2nd well - totaling $14,420) It is my understanding that Randy Engel will make a recommendation on which firm to move forward with in the event the City does decide to drill these well(s). • Dec.08.2008 01:32 PM Mineral Service Plus 3202380198 PAGE. 1/ 2 16409 371st Avenue III elk Green Isle MN 55338 4110' is. Minsiai Stake Plus, C 320 - 238 -0195 Phone Geothermal field Systems 320- 238 -019$ Pax www.mincralscrviecplus.com. w .. December 8 2008 Buetow and Associates, Inc. 2345 Rice Street, Suite 210 St. Paul, MN 55113 To: Michael Lueth Re: Oak Park Heights City Hall. Geothermal test well and conductivity test proposal Dear Mike, We appreciate the opportunity to provide you with the following proposal. Our records indicate that bedrock will be encounte at approximately 50' to 90' below grade. You may wish to consider drilling down to a depth of 200' ,230' in the event this geothermal test well becomes a for sure' project, that way, one would expect a higher b fctivity per gee well. With that in mind, we propose: 1. Mobilize /demobilize, manpower, equipment and materials $1,200.00 2. M,D.II. Geothermal heat exchange permit $300.00 • 3. Construct' /," x 230' deep geothermal heat exchanger $3,320.00 (If necessary, provide temporary 6" steel casing) 4. Due to M.D. H. construction code, we will be required to use neat grout cement; grout annulas from 230' to surface (2 cubic yds Us) $800.00 After grout has been allowed to set for 72 hours, we would proceed with the conductivity test. 5. Set up/take down testing equipment. Run 48 hour (min)conductivity test $1,000.00 6. 10 kw generator for 48 hour test Us $1,500.00 7, Conductivity test report 1/s $600.00 Total project cost $8,720,00 -- Add for second test well and second conductivity test $6,120.00 ' � o' 0 Please allow 2 weeks from receipt of order to process and secure M.D.H. permit. If you should have any questions or would like to proceed with this project, please do not hesitate to call us. Sine ly, A 'AL4044..... Danny A. Nubbe President Page 1 • :• _ _ , _ _ , , BERGERSON- CASWELL INC. TELEPHONE (763179 -3121 III n :if Jr �� ®� 5115 INDUSTRIAL STREET FAX (763)479 -2183 D ERGERSON-CASWELL MAPLE PLAIN, MN 55359 Date: 02- Dec -08 RE: DRILLING SERVICES Project: Oak Park Heights City Hall Attn: Eric Johnson SCOPE OF WORK: Drill one test hole to a depth\f 180'. tall 3/4" ground loop. Grout hole with tremie pipe to surface using ntonite grout and cement where needed. Complete thermal conductivity test. B - C will supply well permits and clear public utilities. ** *All private utilities will be cleared by client and property owners * ** Site must be accesable with wheeled vehicles. Quote includes drilling in Limestone formations. Air drilling will be utilized. Air drilling may produce a lot of water discharge. Water containment or detention is not included in this quote. Limestone may be fractured and require more cement than estimated. Additional cement used will be at price stated below. ESTIMATED COST: UNITS COST AMOUNT - Mobilization / Demobilization 1 LS. @ $ 250.00 $ 250.00 (includes permits and reports) - Drill and install Ground loop to 180' 1 EA. @ $ 4000.00 $ 4,000.00 ( Limestone anticipated ) - Conductivity test - 40 hour 1 EA. @ $ 3000.00 $ 3,000.00 • (ASHREA Recommended) - Cement grout ( For limestone i sandstone 12 BO. U $ 35.00 $ 420.00 1 formations.) j 1 - Additional cement grout. 0 BG. @ $ 35.00 $ 0.00 - 0 @ $ 0,00 $ 0,00 - Additional test well, includes 12 bags of cement. 0 @ $ 4000.00 $ 0.00 ' CV Additional cement grout as priced above. - Additional thermal conductivity test. 0 @ $ 2750.00 $ 0.00 0 a7 $ 0.00 $ 0.00 2 - 0 @ $ 0.00 $ 0.00 - 0 @ $0.00 $0.00 TOTAL COST ESTIMATE: $ 7,670.00 ACCEPTED BY: DATE SUBMITTED BY: Cost estimate valid for 30 days from date issued. Terms: Net 3( David P. Hearich If work orders issued and that date please call for current pricing . Department Manager Date: 02- Dec -08 • �Y P P S �� S LEASE RETURN 4 ONE COPY FOR OUR RECORDS City of Oak Park Heights 14168 Oak Park Blvd. N • Box 2007 • Oak Park Heights, MN 55082 • Phone (651) 439 -4439 • Fax (651) 439 -0574 IC I November 26th, 2008 Bob Smude, Unit supervisor Minnesota Department of Health Division of Environmental Health 625 North Robert Street St. Paul, MN 55155 ** *also via Email * ** Re: Oak Park Geothermal Considerations Dear Mr. Smude: The City of Oak Park Heights is very interested in setting an example in GREEN energy use and sustainable material use while also minimizing the costs to our residents by installing a • non - traditional GEOTHERMAL heating and cooling system at our new City Hall to be constructed in Spring 2009. This non traditional GEOTHERMAL system would implement the use of the City water utility pipes already located underground as the heating / cooling resource as opposed to drilling numerous wells. By utilizing this non- traditional system the City can save approximately $300,000 in installation costs (5% of total building design budget). However, the City is interested in securing your agency's comments to ensure this dynamic and new concept system is as effective and safe as possible. Accordingly, on November 14, 2008 City Staff held a meeting between two Department g Y g p ent of Health reviewers and a representative from the Department of Labor and Industry ,the City being represented by the City Mayor, Mechanical Design Engineer and Public Works Director. This meeting was held with your staff to clarify design options for possible massive energy savings by using this non- traditional design geothermal heating and air conditioning in our new building. This is not my area of expertise and I am relying on information from numerous sources to help draft this letter. • The City would like to work with the Department of Health to develop rules for the use of potable water to heat and cool buildings and keep drinking water safe, but also acquire the energy it can provide. We have enclosed a copy of the proposed heat exchanger and proposed piping system. The heat exchanger of this type, for example, is already being used in St. Paul where District Heating is utilizing this type of apparatus for heating domestic hot water, (consumption and showers). As the design of the building cooing load is better defined the City will be providing the detailed design information on any proposed temperature changes; the City additional g Yp p p g Y believes that the heating of water will be less than 1 degree F.; (the City has will proposing the use of greater than 1- mile of water main loop cis the 'heat sink' and the proposed City Hall is Located between the need well ( #2) and which does run 2 -+ hours a day in the summer, providing adequate from for cooling and heating.) Lastly, the City Council has authorized staff to develop a new City ordinance to substantially regulate any private use of a similar system for heating and cooling. Since the City's system has only one loop in the system, for this type of design, there will be only one practical system permitted. 411 Over the next few weeks the City would like to have the Departments comments, thoughts and ideas on how to make this system safe and provide energy savings to the resident of Oak Park Heights. Please note that time is of the essence as we work with our mechanical .ntra ' so we do hope to have your comments by Dec 315t 2008. gar', ric J. on AICP City r' inistrator Cit • Oak Park Heights Cc: Weekly Notes Randy Engel, Project Architect, Buetow & Associates • . . . . . .. . . . . . , . ,........m.....m....... ,,......... ......4400 44 -44,:" •-).f.,1 --..-....- .".", „,,,..rar„'zig ' ' : ,rwoo AftleS at19.d I 1 INOPIllehl VO g 6 ____A 1. il ?# hl ( g z , . IT AI - jr 4 vt: t H 4 .. . D.A...] ,. ..........cyli 4 t '',1 Ay 1 : T . • I. g',SV g it I . . .. . F 1 ,, 1 .4 . h "" t . ,I, tit A i! . • - ,I, It ...-. iii; ...„. iiii -...; ',...., '.., (4 i .4 . (. , 1. i . -.0111..... (c) 3 ■-. I i n 1 _ isb ----- = i 13A °pt , V) ,.. 4 Ci t /1/4 . g 1 i Z , g . : 1 41/1 va... J .. ri -,,t I.) . I iin flh6 1 .. .., I i . t b - 0 0. 42e, I 416 iiitib n 5 .... 4 -{Till ----,- 1 t, OA ....LY Ei i 1 r 1 .... 1 1 , ..„.1 - „ 41) ........._ ' r ----- 1 . ,6, i..... - ! ... . 1 ......_..... ] t... • 1 i ■ 8 4 1 11 " , , .... 1 , , Page 61 of 110" . _.............._........._.......___........... ........._ _ ..... ............................. _ .... . � '' '�' ��x.''. -r;ss < d '� x �zy�� :4! j� 4• 1 ).:.:}'� �'�is,�Y." ^ Ss�'f+.g > � t• � .t k"''�^�'•:v R �vr �+..;; b #'" c. "Y �r, i- y�2 .� a�i �,X" �.` t ) �•'<� x.. �a �: ., 5'^' •{''x <z� t> L , .'f a X zs n ' , a �' if "4 X �'� '� � " h ,� � �'; t , � >5��. > � tiF �°" m �-` �i'�: ar,'� �t, �tt� b , e �,��', � r:.• 5 .S, h3 �' � .yam rY � nr ��t<,'��a�2�r ��' �� � � a �°� eld '�.. %a �� ,> r'a' a �`�a�'a�•4iYe +� s� � �` '{�.� � q �• .� aF 1 4.. t .� + '`• 1' �-�,;, r ''� u - �: <:.:Qa U .:Y�*� �' 4. +k.... � "'' k i s y= ��c�5"�2 m-� > � ,.� .£ 'v�, �'c + �'C+l� �+ � "� �g�,^v �"'"" � �`� r t. �7 aS > P, � � , �� ��-�'! r. � ��,'t�'� , •. X„� J � ,�,t�q'�. s �?a,.�{? l• y s `. , - :�,t3� <�� :s� .•'�';. �`s: t� rot � a �9s • � . 'w�{S' �4Y"y}�ctr 3.�e x s - 1 r sy �" .4 �y''� a `v p s`' r "��er� I � .c $ c xis �' Qi s$ r a � •s' � � u�., e5 - °. }a s'y �o'��r� ?� •+�` , . . , . . .. 4*t; l� { �,' ��v'y��' �n;�Z; '!•'a�.:•.. 48 ^! i'�k ' > -'k H�, ��A«CFY�„'�4 C* �/.+�$'i "M�<Y�r�> .rt�Y ,.«, r � {, �.y�.. a ?R� '� �. . ����. �+"r•�': �`�j ,, i!!�. M1�'L'f`fi�' i . ' tv �: is � F� rs:' . >a��% ki`. z ,�'.`.1� Y, y �...• .�. �•.rc;..i:�;xi ;T ^;� {1, iw i �t'. ..;cam x� >'�'�i; �;tSa. t� .�.>+�:z �z. r ����vt�� r.. � <�J+4�i'?• Y ;w_'�.�vE��� '�: "i lr k'{. • ",�C"�1 i� n��� � . P• , > y�.�„a,�� ��y.� ,o,�yc � � �' �ti t' ...• •'siY �� V 4 -� @ , S a� � �.t�., r r �'E Ara 3h �>,<;<�e• ,... <�•vr- �"•."'a� - �`� €,'t�ati" 7�.•' .. -� � S.v E,. �S � ;. , ..�. � , ,+�'�, z:! ^, � :',� -•ny _" F" ev� c �''" .,c, ?3 �« Y , �a' - Sa V .Eix a. `�`r � '.t> Y ° �, s�. � � �n3iF, S raj ♦ i } j� e �'.' � sl+ ', kn.. '. ay�� : {�. >4}i "r{ s " M1 ��Fi�v �� � � '� �`��� .1 'Y�'°s�/. j•" +l "��£}�1 �'.�,E� - •j �lsH �•v.K�T.',>G � i� :p'�i� L `i.lP� J Co { "` i. , a* ? ;k : " '$3 4_ ( 4 $ , - '-w , '4 7. . jmt j2 gr 1 &c* -) # �-* k4t ,M4L — � ���+ 3 '1„ "� �'.. �'� t�R e� - f�J:. C>N�y�� .a p l y €�� �C� Ffx4, d<� �� �, �r. {�,.�, ��•/ ` � :.d�,,q . y �' SC � � '� ,� .�i �� � ��A l 1 ' �e . S ;, �,_ - Y-�� �. i *AW; �i '4 Mbg • N� ' � b$$. ;'Si?� :, 20.E : a�'�a3a�e. > Jv�.t:; - � k -.. XR,, c:..y v 3�r `:d!_. y+� �F' ,s ^issP'k �r. YP� -(�.. h`si�,� : �.' 's� jv �� �.t �' yy��, , h '�? �; = ;;�,y�. "•5::. 5 >,tF slfi r.�,i .,; °" 4fs"gv ��s ���' v t .':1��f�:?� Za'v d:�i�a'$,y. C�:..^t � �' %; . . ;.���„x%�"M. � � _ ��; y � : ax,' { - X�Y" _�� � >• sxr 'sr� • ,u�'�,�.fS" � • '�i�$.� ,�.'..1 �Y,��',� •�.��i'=rf� �' �¢'?' 's ' �'" x� i, 5n>. �3'+ ,, & : Kl� #� ry {*a�� r jZ Sa ,. �.s. r a �•:<a'' afiY,, ; . ;�''.tti� P, ;t r�b : 'r '� � , .?, t� �� fio, rw "y a' _ _. -*�. �' I:F�. : ��. k e , tv�air,''•vgE�Pl,Sa��C'.r�.:r� . >'E .+�.,'?'� `h2.z�.'. >`� ttx�; t •I� [ } �a`r3. - t����:ir�;ii3�?' �, F[ °, t�. s,' t!" t" �S�;` x .; °xt}a 'jxY�t4W��3 z "`� "'S'w5?��S ar ; ,.�"t..tiL ?� `; 1�?' t ,�:; : Q� �'�s�?� -- a��,���;�,��`�,ys. - ;..� vr3��`�. _ ' � � w,, l ,� �� �. �'f �'�`����,F�: fi. ,`�a ",��i,';�':,��' �= e�F .'•'tz �`�'��' t: t �,. �1 ��' ; � {?ti"•' ��#'�L���;•'�Q`- c��'��t°.�- .�_ c�s�` ^ �3L'?'.n4��� ,, a �" Yii` t ' ` � . .�r.}'�'� . �e.��g +'•f <• ` � •a�.� ��'+ ¢ X .. s�.+r,�`� '.� � ;5;. �"S+r� 6 �...��•`.,C�.a,;�''� �z ���� sr ui .- a� t4 �Qn;"'S� �i � fi ;x3 ti o-�"p / s, �t���'� "� ,� M. + i i ' } �� tk �- ��.siiCfij "n�i � 5 . � �. z t" X t � � '� � t+•✓ �' •� : � z' ..� �'. Xx > , c��� � �/ } � r . d }. � fl l+ � ,�... '� �, , M ,.P r - ,�, . y�y+! + ' � ,> 5 ',w� ( ... x OS ., .. ; ' i,1; 0 . 4 1 t' R* 'r`� �• } - •c a z�"�i c °.: .i ��F�, � ����;'y .:�`,�• �h'� •� .� : •>�'�k'p�t f 'Try ...n' ,'w eba � , r�* 4 �a`;6<xi� a.. ` >4 � � '- ;� � + � . Q •�� f3� , e, s�'ai�''..• �z' `'� :. • i ��r'Ytf%��`Twt��; �: �,>: y R' : , r r ���' r ^t • � � .;,'y'��3' �`�° • „ 5 �����a� ;��:� • , I s Lk� #���� �' r.' + �4 �� . ti. C° r � � ! 7�. �.,�� . � . - �str;',>� �; > . H l r� � - a �� .�� ,,F . Y. g.� "�+�, • � , r . , � , ..� �.. Y;.R ' . : ;, 4t Y' .j� S $�er�SdSt.F, n.. t. - ,�., i U +� Si td � •T. {� itk"��4 � . ,3M. F a� � y M .��' 1���$ � Y� Y� {rc{'. �i.� ��'�i ,. , :, '�i ''yy ..[[ 44.. s'nt., r � N�, a d Y'.' � ��,. s � '.�`,s J r��.. ,h • ^ d2„'� ., s �' , e 3 Ax , �(+>.�..�t�2�.<.r °v .t[ ! ^ , � ' f t' - ,`�'�s..x� Ff , r,. r :;;G_���,.,, , �'±S c�:,v t M1 t�' s T �a:'� r9 {,�''Ti� r4y ,:� f�i�'i':.aCS�.�'`�. 't?'.S ,.v . -a. u.4 r .. r 4 , 4 >� r�} .fio?x� V ��1:'� _.S1d�S - >� �Zv�` . � a at . ? .w� � •�^ � ¢�' � ��. � � s k 3 • s �� ..,�� c u;�,�r ;l I y.;��:; {�Ra. a �� r• >.�, 't' Z '= Y,•'+r�x� *t''�v , °.. �4' ^ t� �. k r`: ,�,;�"> Vii^• `����� . s:. ',✓,P � .. s ���%,7.. �.� :�< -� •: r�'�.,.4. � x �tri �r ?� ;, �.".`,. ' �� kr" � �t,� �'k:' , q�� w�, r �� , F ` y,t :' �'[ .. I r:� ''; ��;.:' �- �,k'.a °.!� ,.��., .s > S�r .'h '�f"` . 4 a, . /. m.:. � •Y. 1t ��,vv .c aS`�t. f"Y-§�i i .:l a ', . �,-,{+ , k !� N "'' � �f.�e'3� > \ }• -M, . �` •��,'�it �• , kk, i3�t ?,�J ..3 } �v ,� > p Y, wJ'b'�jt<f�.�,'}p YF' t, ERk . ,}.. �,.L��,� •+�' :�, M ?il � �:i N � T �. ��S3s�...;� . .( Y.:. ��i,., lS3.;# ii }52,.��� +h.h�Wr�',�.F(!.•nl:�'. �itlA���,. ..,-. �`t�F��S,�� r,}.. �'A�<4ai'v.- t..:iYC1.��.ii7.. ��� .4 .Eit3:!.•,i;..a- AY�T�i' ..) '.t [ \'r.,. ?L:ntil>51.u�1.•�'� s �, i c 'Si k: � 4 .. � ;m , t•y'�' , `a {�s'r:" s<;v:; ;kta �,: a �• •, ^��� t r��;�,+tr� -,y� 4a* � �`- ����`^�. iFl �� � !I' j S,, to - . u.... � �„"?. t : �: ::?, ":.: �`! h. , ,1,1�'Y,YV �'} r�T,. t¢% �.' >,�`J.�.�4'��"v`+`..�Sx��; :Xf•ATai*.4A.i. ,A�.- 'a':a; >.> .. - l rJ^ It ik5:: i Adaptable construction offers y r ; ,.;. if superior versatility. 's ou ° Double wall Op) As,- 40 f) t ^ ; the basic GPX design includes a double gasketing feature for extra protection , against gasket failure. With double-wall units, that additional protection is extended to guard against plate failure as well. Two plates are positioned together with a unique sealing mechanism at the port holes to form one assembly with air space between the plates. There are no welds, This unique feature protects against contamination of one fluid by another If one of 0 the plates should corrode and develop a leak, the fluid enters the air space ;,,,-',...0 \\r and exits to the atmosphere, instead of entering the opposing passageway, a r r . 4,,. ♦.,0.2,ei Jam .1 \;!::5 ?IW "m'vili .ire : \\ '''' 111 i \ ''''' . . -•,.....,,‘ , 4,:ieav5i, i • ' . .. , y�' 1 hay':: • ,V :., ,. i.q., •mss.: 23:il •. :; .&,,- .. -r- +, W ' I fil 1 . ( ,, , r r� i t�� " ',f, $ < t * V ( e ;'S i / . J I 1air� pp`�''� (� J . L''�4 k ' .: — t Sy e ; gr fi , li 1 ' ;'.::\\\\ ''''':''i<!5r41 . G, -_ b \ 3 ' ,;,R :,4 : ! ' ...0. . Y "VI A , Welded plate . ..:, .#1, , ,m ' .;. The semi - welded GPX design expands the application envelope of plate heat 3. • ,- r,• �r�=�i';� '_ �2 transfer technology to applications that are aggressive to standard elastomers < and other applications where leak prevention is critical. The semi welded GPX ':,= design utilizes two plates laser - welded together to form a cassette. The. cassettes w �a form channels within which the welded -side fluid flows. Two ring gaskets z �s_s�.r—a. • rys t and a field gasket are used between adjacent cassettes in the same fashion as x •' ;< gaskets in the standard GPX design, The ring gaskets confine the welded -side , �' , fluid between the adjacent cassettes and can be made of highly resistant x P age 64 of 110 YF - •ig,* Teflon or a more traditional elastomer gasket. The design eliminates the ,s . w:?3 welded side's exposed gasket surface by approximately 90%. 0 _ :. .. • .�, : , ;. 1 ,`:E,t`3.: Free flow tl Free -flow units offer the same features of bask '..., :) /.- :. GPX models, with the added benefit of exceptional clog - resistance. Bell & Gossett free -flow models feature minimum or no metal -to -metal contact points between adjacent plates to reduce points for particles to catch on the plates. Free -flow models can handle fluids with particulate up to 2rnm in diameter and 5mm long. Double gasket prevents cross-contamination, GPX models include a one-piece molded gasket. This standard gasket is designed with P 9 9 .1 two rinds to confine each fluid to the appropriate port region of the plate, a field region of the gasket to confine the fluid to the heat transfer area of the plate and a vented region in between. This design creates a double gasket with a leak path to atmosphere through the vented region to prevent any cross - contamination of the fluids due to a gasket failure. 4 leak due to a asket failure is detected as a leak to atmosphere prior to any chance y p • for cross - contamination. Bell & Gossett offers a variety of glueless and glued gaskets, a v' r'. ., f d .; #"�'k y��� � }?v; -'-' I .( -.-- sik; -1 1.4. ',,,- . i I , j/ 01.;.„4-,,, :4 „ .. - "..,, Double r)i'i5kt ing nfev€nts cross-contanimm on, G!t:t loss gas&e: opium). . Ring gasket !,x '" r Ott : 13� , ; f `i :;: ".:.� C ? .t•, r } y -.i it z ..� r n '> 1. �xi I�'.: Al ��Nekl Mareff . v cmi Ls are rde t ? ss r" r sry': �::-:ri`)y 1 for haridling aggres.sive fluids 11‘ a, %ryY 6 I =. Aggressive !turd f tekf gasket ....___ ___..__f 3, Page 65 of 110 Ncvi ores$ive fluid ro �'' ::.mod` r'� .� •z• ,; � ; • .a,.. �..., " xtA��"�'i: ;,,�x '�ti� " ;�srrr „�, c••.,� . a;�;: ; r��44.�; ":tt`�� * ":.;a �3,'�'�'`�:c'� ±�' „��3+.���� 3;��x�-��- f�,,i`��c ,xf `i,.�.� x. 7: .Ar a do 3. fix.. f' 2S �u t.ti X D `S .i:.�,. v � �y� tt.: a ty �k;��� g '� � v�.w, a a .s >:. �sArx .`�.¢4 ��'{';ti�3��� ° °.,x?. , ,, �' �' ����sir”' �f. Y..+ �kS��G: ��V_". �f.. T: �Zl�l�i���E' �f���?. ►.r. "•r.'���'�v�'�.'�''.����'�z }i?�iiF.r%`y�.ed`Y•��1�j..�tx ���i;`�b'Y'..�i�1i3+rad�.. <.ns :q. • Advanced GPX system offers superior efficiency. GPX uses a combination of chevron -style heat transfer plates A „4 -, -,. 0 , sequenced between a frame plate . 4 i s �„ and pressure plate. The heat transfer ✓- - . l 4 ` SS r. .. " ems ' ij 4 i , r S plates have holes at the four corners k, N, 0 h ik c� that form a header, which distributes 1 11 ;4 44 i i 3 , the respective fluids to the opposite 1!}%'; .�a k 1)01 '''' 411 sides of each plate when the plates align, 'rR f�►'` We ; ., The fluids are confined to the heat transfer surface of Imo;; , the plate or the port, as appropriate, with elastomer gaskets. + 1'.14,, Countercurrent flow is obtained with a given fluid traveling up one , side of a plate anti the other fluid down the opposite side of the plate. The plate's chevron patterns create metal -to -metal contact points between adjacent plates for added strength. This allows differential pressures equal to the design pressure. The entire assembly is held together with tightening bolts. Carry /guide bars are used to obtain the proper alignment. • Modular design allows for easy i nstallation and maintenance. The GPX design makes assembly, inspection and cleaning easy. • Easy to install and move. ....A • �.y S upport column • Readily expandable �....__._. and easy to inspect ` Carry bar : ,., * .: «z or clean. __._..._..._.. Y , : r 16,7 • Opening or dosing lkr „n* ,� k t the unit does not A i l e i ?.p Plate pack require disconnecting __. ._----- ._....... 0 y ( $ ' x; t the piping. Neat transfer pate 1 3 is i + ° • GPX has vertical flow, g } y , . h ilt 'l . go' so inlet Gasket a 4 and outlet ^ _ SII Ii 1'� ; ' , V Iiyhtcn;ng bo,n connections are above j - Guide bar �i3 and below each other • and on the same plane ' ° for easy instillation. • No special tools needed • Studded connections to tighten plate pack. withstand higher piping Tightening bolt design loads than nozzles. allows opening and closing • With studded connection, Page 66 of 110 the unit from frame plate. no welding is required. ikagilS,Witr*AfiliZZAMigaitatitizIttOXIVietaritiMikttial.e&WIMMAION.4161‘ ‘,•,\( t falsr I : 3 ;Mk,. . :•).. . \,. . •' ,:■:•::%ii:: • y.t • ..,,,, .C m,&,1F 4 . '6, .: Technical Data ..,..10,„.....,„, ..„( , , t y• ,1, +,.......:,,p 4/. . ..., VV., , f &I.; LI' 0 ., . / i*.e*.l..1 Performance: Maximum Flowrate (GPM) up to 17,900 GPM • i1/4,""N".„ „, 4 .p. .......„,:,..1. ____. e '',.,,,,, • , A . .4---..-f:zz? Max. Heat Transfer Area (FT') up to 20000 ft 2 " .... %\ • 4. ' ..` ,..._ titts, '' 4 .1: 5 :;;R:N; Connections: NPT Nozzles—Size O inch N) 1 to 3 inches .* 1 - —......_ ;4 6 ° 11 t ':;./?*•';`''..; ANSI Studded Connections—Size (IN) in N) 4 dleS to 18 inches ,1 e t it . 0• tV l'''ii* j ) , 1 1"' Material Epoxy- pa,inted carbon steel, stainless steel, s titanium, Hastelioy, rubber O , W' • IP :::: . ..- '...4 • 4:11"17i.3% C Via 304 and 316 stainless steel, titanium, SMO 254, '4 kW -t- OAStrUCtiOrl: PlAte fvlaterials Hastelloy, Incollryy, palladium-titanium 4 11 c d rilii . . ., .. ,V:.. . $) . :,.-:;:?;Tilf• --------- -----, _ • "r s ''' •••••• -r, x.t ....!..ii • 1.41..t. Nitrile„ EPDM, Viton; butyl, neoprene, Gasket Materials high EPC)M & nitrite Frame Design Pressures 50 psi commercial up to 300 psi ASME ' tiN,ti Design Temperatures -31*F to 338'F tWvig t P I , (. 1/ '""PV t !• ..., .7. I n• 1 -14..,.... i r.s.- ....• k. • tr 1 • 1 3-•.1 , 1 ti 1 thil - 411 A, . II . I. •--. - ' .'::l.':.:1 ; ' 1 . i • ..,‘ ( ". 't . 1 ‘ . . ... 1 I 'A} I 44. 'a...6 - ,?.: , .........i , f.:.:1-4.) ...74-e... , ...1.,-.:.s......f ".:. , J ../, I . ' . . I I STANDARD GASKETED PLATES . 1._ ...] , i.fd ‘ta FREE FLOW SEM1-WELDED ... • •••• i, 4 ...' .. . • . . . . . Sranc1,)rd threAdect Throrieti connection Standard siudrli.sd Stuckied connection connection -with alloy nozzle calnect km with alby limbo 0 CONNECTION TYPES fkuved Sanimy connection quick-disconnect nozzte h , 1°444 4 OPTIONAL CONNECTION TYPES 4 41 * lett VA 44,4..04, , , . NO 4 )44" 4, ktt4 .0 41044. 4454P: 04.6 t*Olt.tt . VO t S 4 0. 4 4 i 04 .# ' t.,..:4;141%I.A1■•*.I: 41t. ‘Alf** .4,41.91r1r4. tow.4,44, 4 t:$1::.:• 49 % o 4T ‘ 44 I (2) Logs (0/Ong a (2) Shorts 11. chow, (t) Short "IX" (Uwe! • - 1 M• Ch3rIne1 VARIABLE THERMAL LENGTH PLATES 175 Standard Parkway Bell & Gossett Buffalo, New York 14240 , . Phone: (800) 447.7700 • ' . Fax: (716) 862-4176 , 440 ITT Industries , • wwimbellgossett,com ._,„, ....-0 "N" EPage 110 , . II./ in thi:Ailma MCCeS Svvigh MD • 14 KA 011' Ntl 110 lt,tUtht.P.,:j CP ill Ait01111,}, t R,01 • , NP:111/ NU/ A 401 I .1M Page 1 of 2 • Eric Johnson From: Tom Ozzello Sent: Friday, November 07, 2008 3:53 PM To: Dan Moulton; David Beaudet; cathy.tran @state.mn.us; brian.noma @state.mn.us; Eric Johnson Cc: Randy Engel; Tom Ozzello; Jennifer Thoen Subject: CITY OFOAK PARK HEIGHTS CITY HALL Geothermal options The City of Oak Park Heights is attempting to find a way of using the existing 12 inch water main and mains Y g p g Y g g adjacent to the new planned city hall to assist in heating and cooling the building. To facilitate the review and considerations of options we are trying to receive input from both the Dept of Health and the Department of Labor and Industry. We have Dan Moulton working on a preliminary design for review as the Mechanical Engineer for the Architect, Randy Engle. Dan Moulton has agreed to forward the preliminary design for review prior to the meeting. The Mayor, David Beaudet, and the City Administrator, Eric Johnson, have asked me to set up a meeting with the Department of Health and the Department of Labor and Industry to review possible options and plan for the • best use and interests of all parties. We are attempting to set up a meeting for Next Friday, November 14, 2008 at 9:30 AM. We are moving this forward quickly as authorization for final design work will go to the City Council in later November. Brian Noma, of the Department of Health, has verified that he is available at 9:30 as well as Dan Moulton and myself. I just talked to Cathy Tran, Department of Labor and Industry, (DOLI) and she also verified availability. I am sorry to send this out without full verification from all parties, but am myself out of town Monday, Tuesday and Wednesday. I have asked Brian and also mentioned to Cathy that the city is wilting to meet at either office. If possible, I would ask that notice be sent to everyone on this list (reply to all) if a meeting room at either building is found. Mayor Beaudet has been notified and copied on this e-mail as he expressed interest in attending the meeting and may have another person he wants to bring. I would also attend. The City Administrator and his assistant, Jennifer are copied on this as Eric is welcome to attend and if I need to send out information to everyone, Jennifer is very helpful to me in process of items when I am not in my office. Thank you everyone for being patient with me while I tried to set this up. I • 11/13/2008 � . . i p� F -T r , , V $ o. L. T`- - fi .- K� M rY� TIi' (J J � U Qt / . • ✓ + ' .. .J. 1�" V. ' /.. , C) PSI ` • _ w' .„.. PLC _ ^' r w N M u, W to n t - Ct0 W J v10 W - '� ' , `+ ids -. N m O r U � ,e n� _ 2 N J je r o v� -�.•�- ;r�r k.` t o °' F - a) °' U 1#1f O O U 22 g ^ <0 � z - - 3 ) �'. \ _ U C 00 N t 2 �'7 c � U C • CO � N M N O t.) C • tc... 0 _ 7 L.L. 0 1.- ..-.-- :17 C a. en g ' cn E o o m WI- („) L � Colduimate ueoSource ® Pumps FOR THE HARSH REALITY. - ,3 F. • f x_ 1 t i 04 • NAR The Leader in ColdCl r" Geothermal Technology. i ALL IT TAKES 15 A LITTLE ELECTRICITY TO MOVE IT. NOT MAKE IT. _ • E•CON•AR ® (E•kon•ar) derived from earths concentrated solar, is the leader in ColdClimate Geothermal technology. 111 THE DESIGN ADVANTAGES You probably don't know it, but all the THAT MAKE THE GEOSOURCE energy you'll ever need to heat and cool is lit- A MODEL OF EFFICIENCY. erally in your own backyard; and since it's already yours, it doesn't cost you anything. ECONAR is the only geothermal heat What's more, all you need to get at pump manufacturer using high- density your own personal and inexhaustible ener- air coil technology and electronic gy is a ColdClimateT"' GeoSource® heat refrigerant control to achieve variable - pump. The most efficient way to heat and capacity cooling. This allows the cool your home, school, office or church. GeoSource to be sized to the heating So stop paying more for propane, load, allowing you output tempera - fuel oil or natural gas. Start saving money tures for heating of 5° to 10° degrees every month with a GeoSource. Gas GeoSource warmer than competitive You get more for your dollar systems making IT'S NOT THE with the GeoSource. Unlike ECONAR #1 in C FIRST HEAT PUMP, aides more energy it comfort. ONLY THE BEST. ergy thanit uses. All ECONAR units use the Copeland® Compliant ScrollTh s The GeoSource extracts its heat compressor, the quietest and most from below the earths surface where the temperature reliable anywhere. It's the one ECONAR counts on remains constant year- round. Even cold air has heat exclusively because of its superior engineering. in it, but it is far less efficient to extract. The earth _ With the GeoSource, loop is made of ECOMMt a vertical or horizontal polyethylene closed loop of pipe buried tubing and 1 1 L. below the surface draws fittings. This " heat energy out of the high- density .`' ' ground. tubing is tea, Once the heat energy extremely effi- „ reaches the water cient and will .� ° � i .* ,_ Comfort is easily maintained heat exchanger, it is provide many , with central system control absorbed by an ecologi- years of depend - cally sound refrigerant, able service. which is compressed and rises in temperature to The GeoSource about 160°F. The heat is then absorbed by the air is linked to the A GeoSource heat pump is easy to install . heat exchanger, from where a blower circulates it to earth loop with Its PumpPAK'" incorporates all pumps and each room. There is even enough energy left over to ECONAR's valves into one unit heat much of your hot water. exclusive As for cooling, it is far better than a conven- PumpPAK ®, which is one handy unit. tional central air conditioner. In addition, every heat pump By simply reversing the ECONAR manufacturers is easy process, heat is removed and " ' to install and easy to service. you are left with a cool, �I ECONAR designed all units to dehumidified interior. . have easy access to all the com- While energy i; < ponents. All components can be efficient furnaces can be II reached by removing the front up to 98 % efficient, the , , 1 panel of the unit. All in all, you GeoSource can reach effi- can't buy a better engineered • ciencies of 300% to 400 %. �'` ' heat pump. In our state -of -the -art production facility, highly trained workers \\.\\\ assemble every unit with care. i 1 GEOSOURCE HEAT PUMP x EXCEEDS INDUSTRY 1 STANDARDS. ColdClimate Technology was developed by ECONAR with the idea • r io , , ,, -- ..F that the industry yard - 0 . +- stick on energy perfor- mance was only a starting . 1 ' ' point. What we really Y , wanted to offer was a heat pump that is not only better than a conventional system, but also ColdClimate optimized. ECONAR manufacturers The Econar GeaSource system in this home is so effi the only geothermal heat pump cient, it extracts all the energy needed to heat and air built to withstand the harshest condition. The only cost is for the electricity to move weather conditions ranging from it, not make it 110°F to -60°F. Other manufac- tured heat pumps are air condition- . that only provide some of the heating. ECONAR's units are designed to heat and cool up to ' 100% of the structure. The Geosource is designed - to extract the earths energy at 25 °F A loop temperatures, the standard high efficiency geothermal heat pump can only extract the earths energy at 32 °F. This makes us the leader in ColdClimate Technology. .'" ~ ,_... ECONAR offers you the most efficient, comfortable, reliable and quiet heat pump avail - able today. With installations for both commercial and residential projects, with applications of The 80,000- square -foot school in Onamia, MN, forced air, hydronic and combina- utilizes an Econar system with pipes sunk vertically. need. p every It has the capacity to extract 1.75 million BTU in the Lions there is one to fit eve heating mode and has 230 tons of cooling capacity. Your ECONAR heat Annual energy savings are tremendous. pump comes with the best warran- ty in the industry. See warranty for details. i TALK TO YOUR ONE -STOP SOURCE. ; >,, Your local authorized - ECONAR dealer can supply and of install everything you need. Or Ep..- __ �- ~ call toll free 1- 800 -4- ECONAR Your new church can enjoy year -round comfort with for the location of your nearest the GeoSource Heat Pump, which will pay for itself dealer. through savings in heating and cooling costs. 1300 Corporate Center Curve, Suite 101 Office: 651- 405 -0912 M E ENGINEERING, EERING, Inc. Eagan, Minnesota 55121 Fax: 651- 405 -0929 Consulting Engineers E -mail: engineering @MandE - inc.com Green Engineering 7=- l,r_S �r������ The following incorporate some type of "green" engineering. 6 e 44e,,Ali-ik CS C. A. Midtown Lofts (28 and Colfax in Minneapolis) 1. Courtyard planted with native and drought resistant plants. Reduces runoff. rtY P g P 2. Energy efficient fluorescent bulbs for fixtures. 3. Low E- Windows. 4. Low flow faucets and showers. 5. Set back thermostats. B. Jackson Town Homes Geothermal heat pumps for all heating and cooing in the residences. 2. Setback thermostats. C. Ru • -. • Baptist Church — Shakopee I V Geothermal heat pumps for heating and cooling. • D. Freedom Oil Station and Convenience Store 1. Recycle water for car wash saving 30,000 - 50,000 gallons per year. E. North St. Paul Yocum Oil (Holiday) Station and Convenience Store 1. Recycle water from car wash. F. Ritularium Society of Minnesota 1. Reuse storm water to refresh ritularium process. G. Tires Plus — Columbia, MO 1. Reuse waste oil for heat. 2. Reuse waste oil for cooling office area. H. Sauk Rapids Public Works 1. Reuse waste oil for heat. 2. Heat recovery for toilet room/locker room exhaust. I. Eden Prairie City Center 1. Relighting of facility with energy efficient lighting. 2. Day light controls of the lighting. 1 of 2 • J. OETF — Hinkley, MN (Vender Design) 49er's Heavy Equipment Training Facility 0 Geothermal heat pump for heating and cooling. Energy recovery from exhaust. 3. Set back thermostats. K. C Lebanon Dining Hall /Community Center 1. o Geothermal heat pumps with lake water. L. F . iture Store — Becker, MN 0 Geothermal heat pumps. • • 2 of 2 Republic Bank Invests C AS''� A EA r` in Geothermal Technology s r <+' + ... a d'ti' . F ,+..c. 4 g Tom' -�. a r x � r �i - � r '4i.- r T , ' `' i;:t ..+�� K f T - _ _ _ .4 . e'..- ;^t3. - 4:Y.n.. y e S r ;, a . R g, = f s''0.' "Y a *r ti ¢ ^ti ,. T y L , L � � � .. t.+t..h.� — � � a f.� � 1 �ivi �e'�Oi1XTi4 � C jell F ti . f _ _ – T :..e � 'ry . - �.. 5 r S ''.r.�r'r',a�i i ... - - e . T,..,. . I ,1 f; � 'r ,, . j.$41 � ' ' ; ' r'. w= t -: , ��,�,' , lix r .r l.. Commercial Case Study 2 mar, -:.:,. - *1. _•,A..l...�. . ... : . -. ..., ,, y . - . geothermal Pays Big Dividends �" > " ' r; - ow maintenance cost and great return on y r v t i ` j e' \� .. investment were just the beginning of a list of � '"`.-- } # e,, e' ' r e fee , l benefits that motivated Republic Bank President -.. we-.e. ` `t.§ e I:- � .. ro Sx A +fit . and Chief Executive Officer Chuck Thompson to J h ' e t r u� select a geothermal heating and cooling system for a 4 — } x� v,�, x 3.:..Ze.'� 20.i....),Ara �fr}:+7v ,rte new facility located in Norman, Oklahoma. The new facility in west Norman Is the third facility in ` . `'ice ' ` . banking Y � Y � r- �; E (^ the Republic Bank network. . 4 . 4 ,''' �- • A tenant finish project, Thompson wanted to engineer the 29,790 square foot building with a 4 4 tits + f7.b , ce - geo water source heat pump application ` ` '' "'� and subsequently add HVAC as they grew or technology preserved the appearance or aesthetics leased space. He wanted a system that was flexible of the building design. enough to complete the building in phases since future tenants and their needs were unknown, Laying the Groundwork Te accommodate the staged occupancy, Project The three -story building called Republic Square Engineer Ken Jorgenson P.E., designed a geothermal featured the bank lobby and office space on the first installation in three phases. floor with tenant options on the other two floors. Phase One of the installation included the first floor "The reduced operating cost, reduced maintenance banking area and the restrooms located on the costs and increased flexibility were just some of the second and third floors. The first phase was designed reasons why geothermal was the best choice for this as a fully functioning system complete with ground building," said Jorgenson. loops, pumps and Variable Frequency Drives tVFb's }. The ground loop was designed to take are of 100 According to Michael Albertson of Global Logic, percent of the heat rejection and heat absorption Climatemaster's representative for Oklahoma and requirements for ALL phases of the project an expert in geothermal applications, stated the architectural team and owner also liked the fact The installation began with drilling sixty 4-inch that this application eliminated noisy equipment vertical boreholes at a depth of about 200 feet each, mounted on the ground or the roof. Using geothermal located in a grid pattern beneath the parking lot area. • _ CLIM4F EMASYE ' , . _ A loop of polyethylene piping was placed in each well „. -- --- and manifofded or headered together into three groups ?-___ -- of 20 into the 9 -inch main piping in the vault, The 4 -inch supply and return pipe entered the building underground below the pump room. The pump room is the size of a relatively small closet with easy outside access. 1 The first phase included installing four ClimateMaster i '. Genesis Ultra High Efficiency (GS) water source het { r pumps (WSHP) and one Energy Recovery Ventilator r i - 1 (ERV). The horizontal units totaled eight tons ranging t ` s p i in sizes of 1 ton to 33 ton. Thompson chose the 'x„,' ClimateMaster's GS series because it provided the . ° maximum energy efficiency available in a water source Climatehtaater GS Ulkra High Efficiency Horizontal heat pump. The series exceeded the ASHRAE 90.1 units were installed ranging from sizes 015 -042 Standards by 20 percent for the year 2002. The GS units Adding More Value offered ultra quiet operation, lower operating costs, low In Phase Two, five GlimateMaster GS units totaling 12.5 installation costs, and compact design. tons were installed along with a custom computer room application. A computer room unit was used to condition IIII ... ,_;- � .. ., , _ the computer room and computer system server room. �� ',re ! - .,,�"'"� F y ` „ xF This was a water- cooled, cooling only unit similar to a i s -• ti `%` r. t* x a `;^ geothermal water source heat pump with special design :s , ° L �,' considerations to satisfy the unique requirements for cfm, . ` . _ - { latent and sensible Btuh as requested by the engineer. '.' -M * g ` '` This unit was also tied into the ground loop. All the WSHPs were provided with ClimateMaster's "Ultra Quiet" Sound Attenuation package. The compressor was internally sprung and externally isolated using a dual vibration dampening system for extra quiet operation. t ;;" , ` The mounting system incorporates spring isolation 1 { _ i jf . . vo j under the compressor and rubber grommet isolation f �$ 1 r between the compressor mounting tray and unit base. -.� rt Ti, An additional mute option was applied that covered the x . _ base pan, all access panels and blower housing with high- density noise suppression material and 1/2 inch fy, } - _ - _ fiberglass insulation. I,; Automatic Flow Control packages were also installed on : 4 all the WSHPs insuring specific flow rates designated by Jorgenson along with an actuated ball valve allowing water flow only to operating units. The pumps are • Republic Bank Invests in Geothermal Technology Commercial Case Study 2 Republic 'Bank and Trust controlled by a Variable Frequency Drive, which allows office or home computer, Price can track all outputs, the pumps to operate at specific "speeds" in order to filters, system location and cause of any problems, and provide the actual flow required by the WSHPs operating the water pumps' leadllag schedule anytime day or night. at any given time. This "ramp up and down on demand" The monitoring and control of output air temperatures feature saves operating dollars. allowed Price to provide an exceptional level of comfort for employees and clients. Another energy saving feature was the installation of an Energy Recovery Ventilator (ERV). The purpose If someone said an area was too warm, I first checked of the ERV was to "temper' the outside air when air to see the recorded temperature. Next, I checked the temperatures reach extremes such as 100 degrees in the output air temperature, which told me if there was a summer and five degrees in the winter. The ERV recovers problem," said Price. "It allowed me to control one small the energy, either warm air or cool air that has already area when I made temperature adjustments. This avoided been created by the WSHPs in the building, and uses the problem of one person being too warm and another approximately 80 percent of that energy to temper the too cold, which was almost always the case when the fresh air before it enters the WSHP's return air stream. controls affected large areas." Easy Maintenance 24/7 Geothermal investment Pays Off When it carne to maintenance, Facility Manager Craig The return on investment through lower operating costs Price appreciated the application of a computer controller was much greater than conventional heating and cooling that monitored the system off site. From his downtown systems, although the initial cost for a geothermal application was more. In the first year of operation, the energy savings alone are projected to be 30 percent to 35 percent. The savings translate into a 3 -year to 5 -year return on investment, �' ''After presenting the benefits of a geothermal I � application, the owner, architect and engineer all agreed " { n was the best solution offering a great rate of return on investment and easy maintenance," said Albertson. "They „.�„ r . . � • �, � ..:+4,11t‘ k‘ were very comfortable with the system operation.” .1* 4, Two of the three phases of installation are completed. k - At this writing, Phase Three is proceeding, However, the c , success already experienced at this facility, convinced }l,.�te ;ice"; Thompson that geothermal was a reliable and economical r heating and cooling system for future projects. IrC..a! v t} ass -+= 5131 , i iIiY,' - • Republic Bonk invests in Geothermal Technology • 8 ] 1 i Community Energy Clean Energy Resource Teams CASE STUDY; Onamia School District Saves Energy and Money with a Geothermal System By Rin Porter no avail. But Varner was able to negotiate with } The Onamia Elementary thc focal electric utility for help. When it was xr - School in Mille Lacs County, designed and built in the early and middle - r completed in the mid- 19904 1990s. the Onamia Elementary School was the first large geothermal benefited from a special 10 -year flat rate of - °_ =+ t school project in Minnesota. 50.049 per kWh granted to all schools using With the completion of the Rolf Olsen GeoExchange systems by United Power Community Learning Center and the Lions Association (now known as Great River Club Center in 2004. the elementary school is Energ4v), the electrical utility headquartered in now one of three education buildings with Elk River. Minnesota. geothermal systems operated by the Onamia The cost of Onamia Elementary School District. Superintendent John Varner School's GcoExchange system was about couldn't be more pleased with them. $.511,000 more than the estimated cost of a "These buildings cost very little to conventional heating system. "We paid a little operate." said Varner. "But the biggest benefit more for the heat pump system, but we not air is the absence of mold and mildew. We have conditioning," 410 no mold because the air in our buildings is said Dick ;•;xE •s ` ,. ' , 4 f conditioned. Mold cannot grow because there Seemers, s t y ' { 4 is never a dine when the interiors of our district , Y . .' ' .' �` 4 - .• - � " �' � rl� . ' _ buildings have high humidity." Varner said building __ , that his buildings have been able to keep some manager areas carpeted and have not experienced any during the time 5 ..�, • , ` ., -? µ �'',, problems with staff or student allergies due to of the project. , R.- '" °'� ` _ - the superior air handling systems and the Energy costs Z G healing and air conditioning provided by the have been r �, GeoFa:chattge system. much less ' . ' «. ,< • =' When the first geothermal system was during the tI+7• -4 -- being designed for the elementary school in the school's nearly 10 years of operation, in early 1990s, the school received no state comparison with the costs associated with a funding support. Legislators at that time were conventional heating system. not interested in energy efficiency. In 2004. To create the geothermal system, Varner appeared before the Minnesota Senate more than 50 heat pumps were connected to a r Education field of 560 shallow borehoies with more than r �s 3 +i'`� f=P F "T, , Finance 10 miles of plastic pipe. Each borehole is ai = .q a, C 5 ommittee and about 5 inches wide and 50 feet deep. The y x ',4c.' : ' J. ,- ' �0 ,0" ,- the Energy pipes are plastic U tubes inserted all the way 10 , .„ v, . - . Committee to the bottom of the borehoies, like a giant v . ask for funding horseshoe. The U -tubes carry a solution of ° support for the water and antifreeze, which draws heat from s g .5: construction of the surrounding ground and carries it into the `, the Rolf Olsen school, where the heat pumps extract the t Community warmth. '^ °; Learning In addition to the heat pumps, thc "` Center. again to school has a ground - source water -to -water Central CERT October 2005 • i t • Community Energy Clean Energy Resource Teams chiller, which cools the air that ventilates the Superintendent Varner gets a half dozen or gymnasium. During the heating season, more calls each year from school distri in ventilation air for the gym and the rest of the Washington state, Ontario, Manitoba, and other school is heated by hot water supplied by the places who wantto learn more about neighboring high school's natural gas boiler. geothermal systems. That boiler also provides service hot water for Far further information, contact the the elementary school. superintendent John Varner at 320 - 532 -4176, The Rolf Olsen Community Center 02_377,:.2/3 and Lion's Club Center buildings, completed in December 2004, have 164 wells that provide Other Contacts: the basis for the shared geothermal system that Arnie Hedberg, Architect, TKDA (St Paul); they use. Falk Brothers Well Drilling of 651 - 292.4519 Hankinson, North Dakota, was the geothermal well contractor, TSP Architects of Minnetonka Dick Seetners, District Building Manager; 320 - designed the buildings. 532 -4174 "Once again, we had a higher cost initially to install the heating and cooling Gary Connett, Grcat River Energy, Elk River, system, but long term, our tax savings through 320 -241 -2466 encrgy credits and our energy cost savings will be large," said Superintendent Varner. "We Mark Thiedc, Architect estimate a seven and a half year payback for TSP1 (Minnetonka) the new geothermal system, and then very low 952 -474 -3291 energy costs for the next 40 years." In addition to the geothermal system, the two new buildings have other energy 411/ efficient design elements. All the glass is triple -glazed, the bathrooms have occupancy sensors that control lighting. and the hot water runs off the geothermal system, so no additional hot water heaters are required, The buildings are super insulated above the state building code. Multiple thermostats control multiple zones. An energy management system shuts down areas that are not in use, and cools the buildings at night. The latest in T -S fluorescent lighting was installed, Special pumping system controls allow the geothermal pumps to ease into operation so they do not draw a surge of electricity on start -up. The control system for the buildings was custom- designed. "Our next step is the renovation of the 130,000 square foot high school," said Varner. "It has a 1973 -era boiler running on natural gas. There was a time when we used sawdust to feed the boilers, but the supply of sawdust just wasn't steady, so the district took out that system." The Onamia School District takes pride in their energy efficient buildings and will gladly host visitors from other school districts, legislators, and others interested in seeing how the buildings' systems operate. Central CERT October 2005 • ECONAR GeoSource Case Study: City of Ramsey Police Department Page 1 of ; t`fi t 0 s s i ,t 1 Geothermal Heat Pumps for Residential and Commercial Applications � 4 ,o Dealer Locator 1 rase Studies 1 About ECONAR I Contact Information 1 Home .I ECONARm GeoSystemsa - Commercial Case Study City of Ramsey Ponce 7: t Ramsey, Minnesota r - -: � anarud.`1•✓ 4 ti r 7 .., .,. - l �•'-? I h $,rf , 4 ; :, 't , a ,. � .,,t.r� 1c+ i y ;kr" , ..,w.C.dt 3 •4,yrw A`M'', :t _ How Geothermal Works — ' - GeoSource Solutions Wth a projected operating cost of 54.900 for a conventional heating system. and a GeoSource operation most of 52,968 the system payback vras just over three years. It was an easy decision to use the ECONAR G0Source System. This is Locate one of the many headings built by Sharp Construction using the ECONAR GeoSource System. a Qeal Geo$ense Service & Support Total installed price for the Hs.VAC system was 549.700, This included two GH670. 2.7400 (6Ton), two G11590 -2 -1000 (5 Ton), and 4000 CKM energy recovery ventilator for fresh 8l r venting of restrorans Programs & litcenfivea Physical Data Upcoming 10,419 square feet . 22 - 800 foal stinky tomes in i1elds of 10 and 12 each • vents • Loop Field area of 88 feet by 80 Feet 1,5 Horsepower power pump for circulation • General Contactor - Sharp Construction, Champlin. MN • Mechanical Contractor - 8 & t3 Geothermal, Ham Lake, MN • Earth Loop Contractor - & B Geothermal, Ham Lake, MN Next Case Study > Hemp 1 Contact ECONAR l Site Map =0O8 ECOf1ARe GeoSystemse • Disclaimer • Privacy Policy • 1- 80D -4- EGOKAR • http://www.econar.com/casestudies/rarnsey.htrn 12/1/2008 COMMERCIAL CASE STUDY Appleton Civic Center Appleton, MN *-- ° -- Y.,., , 3 '•- -.,.tip w,!;._ t J . Project Information • In 1992, the city of Appleton, MN was searching for a new heating and cooling system for the city's Civic Center. The building, built in 1977, was originally heated with a fuel oil -fired forced air system, and cooled with rooftop air conditioning units. City officials explored several heating system options, including a ground source heat pump system (GSHP), Installing a GSHP system had several important advantages over other heating and cooling systems. "Foremost," says Roman Fidler, Appleton City Treasurer /Clerk, "GSHP systems don't use fossil fuels. That is good for the environment." According to the Environmental Protection Agency, GSHP heating and cooling systems are the most environmentally clean, energy- efficient, and cost - effective space conditioning systems available. Geo$ense Cost Savings were a large factor for the City. "We budgeted $26,000 to heat and cool the Center in 1992" says Fidler_ "After installing the ECON.4R GSHP system, the heating and cooling costs for 1992 were actually under SI0, 000. We paid more initially for the GSHP system than another furnace would have cost, but the system has already paid for itself. Within the first eight months of operation, the city saved over $9,000 in heating and cooling costs. Phy?sicaI Data • 10,000 square feet, Built in 197 • Retrofit in 1992 • Vertical Loop field with 40 bore holes 150 feet deep • Utilizes 7 ECON.AR GeoSource Forced Air units • Mechanical Contractor — Falk Brothers, Hankinson, ND • Earth Loop Contractor Falk Brothers, Hankinson, ND ECONAR • COMMERCIAL CASE STUDY • Furniture and Things Home Center Elk River, MN o,..= IF4JR.Ni O t r .. _ & nnE 71rttNGL CERA RAT t.1 ._ u 91i1 K ccL, iUP SI# d� f1Y[ r.. G,M•. Project Information One of the Upper Midwest region's largest furniture showrooms, Furniture & 'Things in Elk River, MN also has the largest known slinky loop. What makes this showroom so unique, other than the 130,000 square feet of wall to wall furniture, is their state of the art heating and cooling with the ECONAR GeoSource line, Owner Larry Hickman stated that the savings were one of the main reasons he choose to go with geothermal. Although the initial cost was a bit higher, the payback on the system itself helped him make his final decision. • GeoSense T he estimated annual heating cost is S 14,000 and the estimated cooling cost is $6,200. The electric rate for the geothermal system is .05 cents per KWH. The savings over a typical natural gas system is about 28 percent less and about 63 percent less than LP gas. Physical Data Phase I • 90,000 square feet, Built in 1996 • 100 slinky loops at 6 —8 feet deep & 60,000 feet of pipe (or 12 miles) total • Utilizes 10 ECONAR GeoSource Heat Pumps • 100 Ton Capacity • Mechanical Contractor... S & B Geothermal, Ham Lake. MN • Earth Loop Contractor — S & B Geothermal, Ham Lake, MN Phase II Added on 40,000 square feet in 1999 for a total of 130,000 square feet • 78 wells @ 120' deep. • Utilizes 7 ECONAR GeoSource Heat Pumps for a total of 17 units • 54 Ton Capacity • Mechanical Contractor — S & B Geothermal, Ham Lake, MN Ecomit • _ _ Apple Valley / New liquor store is energy - efficient 41111 Business is state's first to apply for special designation By Jessica Fleming j fleming @pioneerpress.com Updated: 11127/2008 09:27:26 PM CST Scott Swanson uses an environmentally friendly geothermal heat pump to keep his cabin toasty. So, when Apple Valley decided to build a third municipal liquor store, Swanson, the city's liquor operations director, suggested the new store be heated by such a pump. The store, which quietly opened to the public a few weeks ago, has geothermal heat, as well as LED lights, water -based paints, Energy Star appliances and skylights to harvest as much daylight as possible. It is the fast commercial building in the state to apply for Green Globes certification, which eventually would be issued by the Green Building Initiative, a nonprofit dedicated to promoting environmentally sustainable building practices. "In the city of Apple Valley, we want to become more energy - efficient," Mayor Mary Hamann -Roland said. "We are very proud Of this new store." The 15,000 - square -foot building, at 157th and Pilot Knob Road, near the Cobblestone take development, features a large wine section, a walk -in beer cooler and a tasting bar. The bar's countertops are made of recycled glass — shiny blue chips once were Skyy vodka bottles, Swanson said. The store was budgeted at $4.9 million, and Swanson said it came in under budget, but he doesn't know yet by how much. Not everyone is excited about the new liquor store, though. Blogger and Apple Valley resident Bill Roehl said the city should get out of the liquor business. But H it had to build a new store, he said, it should have been in one of the empty retail establishments around town. "I don't think it's worth ($4.9 million) for a building that might not be successful," said Roehl, whose south- metro-based blog is at lazyliohtnirlo orq. Hamann - Roland, however, said the city did a study that showed it could support a third liquor store, and that the Cobblestone Lake area was identified as a good spot for It. The store is opposite the city's new SuperTarget, which the mayor said will help bring in customers. "People come out of Target, and they go right into our municipal liquor store," Hamann - Roland said. "I believe this store is going to be very successful — one of the best in the state." Swanson said the heating system will save enough money to help put profit back into the city's coffers. "I knew if we could get a heat pump in here, it would lower my operating expenses," Swanson said. He estimates the heating system in the new store will save the city 98,000 to $10,000 a year in heating costs. It cost 9100,000 to install. Jessica Fleming can be reached at 651- 228 -5435. Austin Daily Herald Twin Towers thinks 'geothermal' Page 1 of 3 ti • Austin Daily Herald Print this Page 1 Close This Window 1 Twin Towers thinks 'geothermal' HRA rejects county request to use parking lot for jail and justice center By Lee Bonorden (Contact) 1 Austin Daily Herald Published Friday, November 28, 2008 When the Austin Housing and Redevelopment Authority (HRA) Board of Commissioners rejected Mower County's request to use the Twin Towers First Avenue northeast parking lot for a geothermal field, cynics wondered "How could they ?" It may have seemed, at first take, the city was unnecessarily interfering with Mower County's ambitious plans for developing a geothermal field in the Robbins block, where the Twin Towers parking lot is located. Mower County officials have long coveted the Robbins block for a variety of future plans: geothermal field for the new Mower County Jail and Justice Center across Second Avenue Northeast from the Robbins block; parking for the jail and justice center facilities; and a possible site for a new Mower County Health and Human Services building, when or if the facilities move downtown from Oak Park Mall. At least one government body — the Austin HRA Board — is not so sure the geothermal system project should be fast - tracked and with good reason. • Twin Towers' own geothermal? "What if we want to use property that for our own purposes ?" asked Norman Hecimovich, Third Ward Austin City Council member. "They (the Twin Towers) have no property of their own." Hecimovich is vice chairman of the Austin HRA Board. In the absence of board chairman, Jay Nelson, Hecimovich chaired the thought - provoking Nov. 19 HRA board meeting. The county's request to use the Twin Towers parking lot for their geothermal and expansion plans in the Robbins block may have been doomed from the start. The request was rejected 5-1. Only Dick Lang, 4th District county commissioner, and an HRA Board member, voted against the rejection. The outspoken Hecimovich has raised questions about the county's wide- ranging plans to build a new two - story, 128 -bed jail and give judges and court administration a new justice center. "They want to spend $36 million on a new jail and justice center that will cost a million dollars a year or more to operate, while they themselves say it only costs $500,000 to board out our prisoners. That just doesn't make sense to me," Hecimovich said. He said the HRA Board had legitimate reasons for turning down the county's request: a geothermal field of its own for the Twin Towers. 2l noo8 Austin Daily Herald. A8 riehts reserved. • m Austin Daily Herald 1 Twin Towers thinks 'geothermal' Page 2 of 3 • The boiler system at the popular high -rise apartment buildings between East Oakland Avenue and First Street Northeast is 35 years old and in need of replacement. Karl Dirksen, mechanical engineer for TSP Architecture- Engineering - Construction, Rochester, informed city officials Nov. 14, "The use of the earth beneath the parking lot as a geothermal heat ex change field is certainly viable. "The heating system in the Twin Towers resident apartments may not lend itself to a direct conversion reusing the heating and cooling equipment that is in place at this time," Dirksen added. "However, because of the strong emphasis on seeking alternative fuels and technology for heating and cooling new options and equipment for use with a geothermal system are being developed at a very steady rate." Dirksen admitted the cost to convert to a geothermal system is appear to be exorbitant at this time, "The geothermal industry is advancing very rapidly and what looks impractical now may change in a short time." That appears to be what the Austin HRA Board is gambling on happening. Hecimovich said the city has partnered with Mower County since the inception of the geothermal heating system for the jail and justice center was first considered. "We granted them permission to drill their test wells over by the swimming pool, too," he said. When that site of deemed too "far away" from the jail and justice center site, the county gave up on its consideration and returned to focus upon the Robbins block. Presently, the county owns the Robbins Furniture and Design Gallery and Thoroughbred Carpet /George's Pizza real estate in the block across First Street • Northeast from the downtown government center. Negotiations continue with hold -out property owner Tom Sherman who owns the northeast corner of the square block. Engineers have told county officials a geothermal field can be created in the remaining property to serve the jail and justice center. Housing and Urban Development officials have told the Austin HRA Board they need "considerable more information" on the proposed geothermal system's installation before making a decision to approve or disapprove of the project. Possible room elsewhere The Mower County Board of Commissioners has not approved a specific geothermal system's installation in the Robbins block. According to Craig Oscarson, county coordinator, 96 test bores are needed to satisfy initial construction of the well field in the Robbins block. In a Nov. 14 letter to Jim Hurm, Austin city administrator and the Austin HRA's executive director, Oscarson said, "It is apparent there will be sufficient room in areas other than the HRA parking lot to accomplish the initial bore field." "Why then," taxpayers may wonder, "does Mower County want the HRA parking lot area in the Robbins block ?" The answer: Future expansion of the jail and justice center and the possible relocation of the Mower County Health and Human Services offices from Oak Park Mall to downtown Austin. • m Austin Daily Herald Twin Towers thinks 'geothermal' Page 3 of 3 • But there are more questions to be answered about conversion to a geothermal system for the new jail and justice center. Erickson Ellison and Associates, St. Paul, informed Mike Clark, lead architect for KKE Architects, Inc., the anticipated payback for a geothermal system may have been "too conservative." As early as last July 9, the consulting engineering firm said, the higher costs expected for the geothermal well field push the payback period from 20.5 years to 36.9 years. While the calculated new jail and justice center building heating and cooling demands from original estimates made in February, the consulting engineers told the KKE architect, the relative cost of electricity and fuel shouldn't go ignored. "It has been assumed that their costs will escalate at about the same rate over time," the Erickson Ellison and Associates consulting engineer cautioned. "However," the warning immediately came, "if natural gas were to escalate at a faster rate than electricity then the payback period would reduce (the energy cost to operate boilers would increase in our present value analysis)." Consulting engineer -speak aside, the conclusion drawn was: The new expected payback of 36.9 years will exceed the 25 year life cycle of the geothermal system. • • m • 00 .r< o CNA oco nsoftmemot ,,�, fi r a. „ • , _, Z tm x _ ^+s k imall c. r CC 0 3 o 0 0 0 t e .0 — 1-� 0 0o ,x- a ' s A ot 0 c1 ad _ 8 c . � V� a., . y , t1] , C� s . +�._� _ s.._ ., ¢ ,'L ❑ 3 p 't3 ;v ' 'CS �G _ ;- ' - s °ta co ' C7 a y !. r * : *' ms s . - " ,�% v , _ v o 7 y '' Q - E U ..t .a > ....= Q ct ° O - F t� 7tt e a o N ' � 7 'O � ro .* `a LSO S�. . LtS N ad " 3 O _ .- `�c '°� man -- - 4. . -, "' 2 °) LSO Q) ,--4 yy .4 fl . `1" Sr' 2 ^ ii a r s ki' $ Y p N b 6 06 g at y t U H 3 E...,,= a d 3 Yx cn 0. a ,„,, 'za C2 N. w N. C y, �.,: 1