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HomeMy WebLinkAboutGREENBROOK Well Information DEPT. OF ENVIRONMENTALCONSERVAT]ON / $OUTXC~7~TRALR~GIOt~ILOFFICE / ~~ ROOM I~ ANC~O~G~ ~1 May 27, 1977 Mr. Marvin Beyer Tryck, Nyman & Hayes 740 I Street Anchorage, AK 99501 Subject: Greenbrook Subdivision Water System Dear Mr. Beyer: The information presented in your May 2, 1977 letter coupled with the presented as-builts are sufficient for this depart- ments purposes and are approved for those features with which this department is concerned. In the future any as-built drawings must be stamped by an Alaska registered engineer and accurately reflect the installation it covers. Sincerely, Regional Environmental Supervisor cc: Anchorage Municipality-DHEP sv July 24, 1979 Area Realty Barbara Kolehmainin 4611 Business Park Blvd Anohorage, Ak 99503 Su])ject~ Greenbroo~ Subdivision The water system in Greenbrook Subdivision is approved. If you have any further Q~es%ions, please contact me at:. 264-4728. Robert C~ Prat~ Associate Specialist June 26, 1979 John Hardwick General Partner 2nd & 4th ~chorage, Ltd. 4611 Business Perk Boulevard Anchorage, Alaska 99503 Subject: Greenbrook Subdivision Water Supply Dear ~. Hardwick: This department has reviewed the pressure test of the subject subdivision~ also, the chemical and bacterial analysis and finds this will meet with conditions with which this department is concerned. If there are any further questions, please contact this office at 264-4720. Sincerely, John W. Lynn Environmental Specialist ~L/lJw Jim Start Environmental Conservation 338 Denali Street - ~ackay Building A2%chorage, 99501 CHEMICAL & GEOLOGICAL LABORATOt IES 'OF ALASKA, INC. P.O. BOX 4-1276 Anchorage, Alaska 99509 TELEPHONE (907)-279-4014 274-3364 ANCHORAGE INDUSTRIAL CENTER 5633 B Street Drinking Water Analysis Report for Inorganic, Organic, and Radiochemical Contaminants TO BE COMPLETED BY PUBLIC WATER SUPPLIER PUBLIC WATER 'SYSTEI~I: I.D. NO. Greenbrook Subdivision Public Water System Name c/o Parkwood Company Address Anchorage, Alaska City State Z'f~b-68~ Note: Check box to left of contaminants listed below for the analyses desired~ SAMPLE DESCRIPTION: Collected By. John Hardwick Lot 5~ Block 2~ Kitchen Sink Sample Location Source Type [] Surface Water Sample Date ~ MO. [] Routine Sample [] Special Purpose Sample [~ Ground Water Day Year :k~ Untreated Water [] Treated Water TO BE COMPLETED BY CERTIFIED LABORATORY CHEMICAL & GEOLOGICAL LABORATORIES OF ALASKA, INC. Laboratory Name 5633 "B" STREET Address ANCHORAGE, City - ALASKA 99502 State Zip Code Sample No. Station No. 0759 Laboratory Analysis No. S. Ede 6-20-79 Received by Date INORGANICS Limit Mg/I [] Arsenic (0.05)< [] Barium (1.)-~ [] Cadmium (0.010).~ [] Chromium (0.05)-~ [] Fluoride (2.4) [] Iron (0.3)< [] Lead (0.05)-,= [] Manganese (0.05)~ [] Mercury (0.002),~ [] Nitrate. - Nitrogen (10.) [] Selenium (0.01).,: [] Silver (0.05)~: [] Sodium (250) E] 0. 01 O. 1 0. 01 0 0.05 3. ND Indicates Not Detected Archie L. Green- [] [] [] [] [] [] [] [] Endrin Lindane Methoxychlor Toxaphcne 2, 4-D 2,4,5-TP Silvex ORGANICS Limit (0:0002) (0.004) (0.1) (0.005) (0.1) (0.01) Mg/I TO BE HAILED .AT EATER DATE. RADIOACTIVITY Limit pCi/I EX Gross Alpha (15) [] Radium 226 & 228 (5) [] Gross Beta (50) [] Strontium - 90 (8) [] Tritium (20,000) June 22, 1979 6-22-79 Date Analysis Completed Signature of Laboratory Supervisor Date reported T. RYCK Head Office/740-~treet Anohorage, Alaska 99501 /907-279-0543~?'~able TNHANCAK/TeIex 090-2§332 NYMAN HAYES ENGINEERS/PLANNERS/SURVEYORS 8025.0 June 14, 1979 Les B. Pace General Partner 2nd & 4th Anchorage, Limited 4611 Business Park Blvd. Anchorage, Alaska 99503 Dear Mr. Pace: At the request of John Hardwick of your company a pressure test of the Greenbrook Subdivision water system was accomplished at 14:00 hours on June 13, 1979. This test was observed by Tryck, Nyman & Hayes and the results are certified by TN&H as follows: 125 pounds of pressure was applied to the distribution system for 30 minutes with no drop observed. In addition, the well was pumped using the operational pump for 5-1/2 hours with rate of flow measured at 46.8 gallons per minute. Prior to pump Static head was 8' above ground level after 5-1/2 hours draw down in the casing was 40' and holding following shut down of the pump initial recovery at I minute was 20' with recovery to ground level in 6.5 minutes. Compared to initial tests, see attachments, this shows considerable improvement in the well since May 2, 1977 with ultimate production in the 100 gallon per minute range possible. Yours truly, TRYCK, NYMAN & HAYES----x Ralph ~les td~ r Resident Engineer Jgp encl . ' , .D. NO. MO. Day ' Year SA~?LE TYPE: ~ '- ~ Routine ' Check Sample (for routlno samplo with lab ref. no. ,, ) ~ Treated Water Sp,clal Purpose ,: ~ Untreated Water CHEMICAL &, GEOLOGICAL LABO~{ATO /~ES OF ALASKA, INC. P.O. BOX 4-1276 , TELEPHONE (907)-27940~HORAGE INDUSTRIAL CENTER . ! 5633 BI Street Anchorage, Alaska 99509 274-3364~ ~. ~ , · Drinking Water Analysis R~d for Total Co~o~ ga~e~ TO a~ COMPLETED ~Y WATEa SUPPLIER TO ~E CO~PL~EO BY ~O~TORY ' LABORATORy: CHEM & GEOLABS OF AK ~ INC.. t ~NAME 5633 "B" STREET / ADDRESS Zip C~e , ', Analytical Method: '-. ~ ~ Fermentation Tube ~ Membrane Filtor Time Collected Lab Ref. No. Result* Analyst Collected I · o6-x~2o lb) . BACTERIOLOGICAL WATER ANALYSIS RECORD : ~ /". presumptive 'JOtul /Omi 1Omi 1Omi lOml 1.Omi O.lml EMB-- Broth 24 hours: Broth 4a t~ours: Muttlple Tube Report:-- i 10mi Tubes Poslthce/Total 10mi Portions SAMPLE NO. LOCATIO~N 4 '~ " I READ INSTRUCTIONS BEFORE COLLECTING SAMPLE April 17, 1979 John T. ~ardwick 4611 Business Park Boulevard Anchorage, Alaska 99503 Subject~ Greenbrook Subdivision As.~.builts for %;aterlines Dear Mr. Hardw&ck: This department has reviewed tho }{ealth and Environmental Protection fileson the subject subdivision and finds no engineering as-b~ilts for Greenbrook Subdivision waterlines on file. Therefore, the water line is not an approved water system, also, it is our u~derstanding that Mr. Glenn ~!uff, the engineer for the project, has the as~b~ilts and must have x number of funds before turning over any material on this project to anyone for document use. This department cannot approve the'waterlines for the Greenbrook Sul~ivision at this time. If there are any further questions, please contact this office at 264-4720. Sincerely, John W. Lynn Environmental Specialist JWL/lJw n~c~pality of Anchorage MEMORANDUM DATE: April 17, 1979 TO: Greenbrook Subdivision File FROM: Senior Environmental Specialist SUBJECT: Water System k WATER SYSTEM ~0~ APPROVED AS OF THIS DATE: APRIL 17, Les N. Buchhot-z~, R.S. Senior Environmental Specialist LNB/ljw 1979 91-010 (4/76) December 1, 1977 Les Pace Lockwood Homes Inc. 1601 East Dimond Boulevard Anchorage, Alaska 99502 Subject: Lot i Block 2 Gree~brook S~bdivision Lot 6 Block 1 Greenbrook Subdivision Due to soil characteristics and water table on the above s~bJect properties, the septic tank outlet must be placed two(2) feet below ground level, which requires a hole in the crawl space block work and does not allow for a daylight basement. An acceptable alternative would be a shellow drainfield, with the following design specificatioas: (1) Permit ~ 771036: Total depth six(g) feet, total length seventy-seven(77) feet, gravel depth eighteen(18} inches, width five(5) feet. (2) Permit ~ 771033: Total depth six(6) ~eet, total length fifty-seven~57) feet, gravel depth eighteen(18} inches, width five(5) feet. The permits issued to you on Monday, November 28, 1977 will expire December 31, 1977. Your apper~nce at this office before the expiration date is required for extensions to December, 1978. AlsO, the permist must be signed by you or your representative before they are valid. If there are any further ~estions, please contact this office at 264-4720. Sincerely, Hank Allers Code Enforcement Officer August 26, 1977 Tryck, Nyman and ~ayes 740 I Street Anchorage, Alaska 99501 RECEIPT FOR CERTIFIED MAIL--30~ (Plus postage) SENT TO ' I POSTMARK OR DATE STREET AND NO. P.O., STATE AND ZIP CODE OPTIONAL SERVICES FOR ADDI~ONAC FEES · RETURN ~ I. Shews to whom and date delivered ............ With delivery to addressee only ............ 659 RECEIP'T ~ 2. Shows to whom, date and where delivered .. 35t SERVICES With delivery to addressee only ............ 85 DELIVER TO ADDRESSEE ONLY ...................................................... 50d SPECIAL DELIVERY (extro fee required) .................................... PS Form Apr. 1971 3800 NO INSURANCE COVERAGE PROVIDED-- (See other NOT FOR fNTERNATIONAL MAIL * cpo: ~974 o - 55~-454 Subject~ Greenbrook Subdivision According to this departm~ent's water sample moniter list, we have not as yet r~ceived a water sample for the above subject well system for the month of July, 1977. Our records indicate that you are responsible for turning these mandatory samples in for the subject water system. If you have-not done so as yet, please obtain a water sm~pling l~ttle from the State Lab, 527 East 4th Avenue, as soon as possible and return the sample to the same address for analysis. If you are no longer in charge of the subject water system, please notify us immediately to ~%y nam~e and/or address ohanges. If ithere are any further questions, please contact this offic~ at 279-2511, e~tension 224, or at the above address. Thank you for your co-operation ~ this matter. S.incerely, Lynn Bringle ~tnc-ipat Environm~ntal Control Officer /ljn Municipalityof Anchorage POUCH 6-650 ANCHORAGE, ALASKA 99502 (907) 279-2511 GEORGE M. SULLIV/~N, DEPARTMENT OF HEALTH AND ENVIRONMENTAL PROTEcTIoN (825 "L*' Street) June 9, 1977 Tryck Nyman & Hayes 740 I Street Anchorage, Alaska 99501 Attention: Marvin Beyer Subject: Greenbrook Subdivision Water System with Redline Contractors Plans as As-Built Dear Mr. Beyer: This Department has reviewed Subject and New Information as submitted and finds this will meet conditions with which this Department is concerned. The Department will approve Project on a one year satisfactory operation prior to a Final Approval by the Department. Thank you for allowing us to keep the Redline Contractors Prints for our files. Environmental Engineering JWL: 1 mp cc: Kyle Cherry - ADEC cc: Rolf Strickland - DHEP · F ENVIRONMENTAL CONSERVATION SOUIXCc'7~TRAL REGIOA64L OFFICE / 338 DENALI STREFI' I MmcKAY BUILDING, BOOM 1288 ANCHORAGE ~gSgl May 27, 1977 Mr. Marvin Beyer Tryck, Nyman & Hayes 740 I Street Anchorage, AK 99501 Subject: Greenbrook Subdivision Water System. Dear Mr. Beyer: The information'presented in your May 2, 1977 letter coupled with the presented as-builts are sufficient for this depart- ments purposes and are approved for those features with which this department is concerned. In the future any as-built drawings must be stamped by an Alaska registered engineer and accurately reflect the installation it covers. Sincerely, K~ ~errv~~ Regional Environmental Supervisor cc: Anchorage Municipality-DHEP sv ENGINE FFi$ / PLANNE[IS / SURVEYORS 8025.0 May 2, '1977 Mr. Kyle Cherry Department of Environmental Conservation 338 Denali Street McKay Building, Room 850 Anchorage, Alaska 99501 Subject: GreenSrook Subdivision Water System Gentlemen: Transmitted herewith for your review and approval is one set of as- built plans for the subject water system. · The original plans and specifications were prepared by Mr. Glen Huff and submitted for your approval on April 12, 1974. Approvals by both the Greater Anchorage Area Borough and the State of Alaska Department of Environmental Conservation were given in letters dated April 22 and April 29, 1974. All water lines were installed during the summer of 1974 by Jay Cowdery, dba Hoe Unlimi.ted. The contractor supplied marked- up drawings in 1976 to Tryck, Nyman & Hayes showing that the water system was constructed essentially as designed with the exception that the water line from the well to Teresa Circle was changed from 3-inch diameter to 2-1/2-inch diameter. This 2-1/2-inch diameter line extended to approximately station 27+00. It is our professional opinion that the change from 3-inch to 2-1/2-inch diameter in this area is acceptable. During the summer of 1976, Tryck, Nyman & Hayes became involved in the completion of the construction of this project. During that time the ends of all water lines were exposed and the water system was flushed, cleaned, and pressure tested at a pkessure of 120 psi and dis!nfected by chlorination in excess of 100 ppm. Our excavations indicated that the contractor's as-built drawings were accurate in regards to depth and water line size. May 2, 1977 r ' 'E HAYES i - 2 - 80Z5,0 The water well was drilled during the summer of 1974; however, no development work, pump tests or grouting were performed at that time. The well has been developed, screen installed, and flow tested at a rate of 50 gpm for a 5-1/2 hour duration. Tests indicated that the wel.1 could produce in excess of 50 gpm so a Jacuzzi #3S6A6 pump was installed which wLll pump in excess of 60 gpm at the 40 to 60 pressure range. This pump capacity is more than double the capacity required in the original design report prepared by Mr. Huff. The well casing has been pressure grouted with a concrete grout to a depth of 20 feet below ground level. Enclosed herewith is a copy of the pump performance curve a copy of the well logs. Enclosed herewith is a copy of the recorded water well easement. The details for the well head and well pump control is enclosed with the as-built drawings. This well pump control consists of an insulated enclosure'with a thermostatically controlled heat tape and pressure switch located near the well. Each home will be required to install a membrane lined, pre-pressurized, hydro-pneumatic tank. This tank shal! consist of a permanently separated air chamber which will not become water logged or require future air charging. The tank shall be a WELL-X-TROL, WX-250 which is recommended for larger homes and institutions. This tank will be adequate for up to and including six bedroom homes on each lot in the subdivision. No pressure tank or well house will be required at the well site. The requirement for the WX-250 hydro~pneumatic tank will be incorporated into the deed restrictions for each lot in Greenbrook Subdivision. When these deed restrictions are finalized, a copy of the restrictions will be transmitted to you for your review and approval. Enclosed herewith is a copy of the chemical analysis of the well water, which analysis was performed by Associated Laboratories of Alaska. A bacteriological analysis was also made and each analysis indicates .that ~this water supply is suitable for a potable water system. All service connections are three-quarter inch copper pipe with a Mueller type curb stop at the property line with thaw wires at the curb stops. · · ~~"~'~'~ May 2, 1977 ~~~ 3 - 8025.0 We hope that the enclosed as-built drawings meet with your approval. Please feel free to phone me if there are any questions. Very truly yours, TRYCK, NYMAN & HAYES Marvin Bcyer, P.E. Project Engineer MB:dea enclosures cc: Les Pace d NYMAN E HAYEE ENGINEERS/PLANNERS/SURVEYORS 8025.0 May 2, 1977 Mr. Rolf Strickland Environmental Engineering Manager Department of Health & Environmental Protection Municipality of Anchorage Pouch 6-650 Anchorage, Alaska 99502 Subject: Greenbrook Subdivision Water System Gentlemen: Transmitted herewith for your review and approval is one set of as- built plans for the subject water system. The original plans and specifications were prepared by Mr. Glen Huff and submitted for your approval on April 12, 1974. Approvals by both the Greater Anchorage Area Borough and the State of Alaska Department of Environmental Conservation were given in letters dated April 22 and April 29, 1974. All water lines were installed during the summer of 1974 by day Cowdery, dba Hoe Unlimited. The contractor.s.upplied marked- up drawings in 1976 to Tryck, Nyman & Hayes showing that the water system was constructed essentially as designed with the exception that the water line from the well to Teresa Circle was changed from 3-inch diameter to 2-1/2-inch diameter. This 2-1/2-inch diameter line extended to approximately station 27+00. It is our professional opinion that the change from 3-inch to 2-1/2-inch diameter in this area is acceptable. During the summer of 1976, Tryck, Nyman & Hayes became involved in the completion of the construction of this project. During that time the ends of all water lines were exposed and the water system was flushed, cleaned, and pressure tested at a pressure of 120 psi and disinfected by chlorination in excess of 100 ppm. Our excavations indicated that the contractor's as-built drawings were accurate in regards to depth and water line size. A..,r'RYCl( - NYMAN HAYE% - 2 - Mr. Rolf. Strickland May 2, 1977 8025.O The water well was drilled during the summer of 1974; however, no development work, pump tests or grouting were performed at that time. The well has been developed, screen installed, and flow tested at a rate of 50 gpm for a 5-1/2 hour duration. Tests indicated that the well could produce in excess of 50 gpm so a Jacuzzi #3S6A6 pump was installed which will pump in excess of 60 gpm at the 40 to 60 pressure range. This pump capacity is more than double the capacity required in the original design report prepared by Mr. Huff. The well casing has been pressure grouted with a concrete grout to a depth of 20 feet below ground level. Enclosed herewith is a copy of the pump performance curve a copy of the well logs. Enclosed herewith is a copy of the recorded water well easement.. The details for the well head and well pump control is enclosed with the as-built drawings. This well pump control consists of an insulated enclosure with a thermostatically controlled heat tape and pressure switch located near the well. Each home will be required to install a membrane lined, pre-pressurized, hydro-pneumatic tank. This tank shall consist of a permanently separated air chamber which will not water logged or require future air charging. The tank shall be a WELL-X-TROL, WX-250 which is recommended for larger homes and institutions. is tank will be. adequate for up to and including six bedroom homes on each lot in the subdivision. No pressure tank or well house will be required at the well site. The requirement for the WX-250 hydro-pneumatic tank will be incorporated into the deed restrictions for each lot in Greenbrook Subdivision. When these deed restrictions are finalized, a copy of the restrictions will be transmitted to you for your review and approval. Enclosed herewith is a copy of the chemical analysis of the well water, which analysis was performed by Assoclated Laboratories of Alaska. A bacteriological analysis was also made and each analysis indicates that this water supply is suitable for a potable water system. All service connections are three-quarter inch copper pipe with a Mueller type curb stop at the property line with thaw wires at the curb stops. . ?RYCI( - ~"NYMAN ~. E~HAY(~S -3- Mr. Rolf Strickland May 2, 1977 8025.O We hope that the enclosed-as-built drawings meet with you~r approval. Please feel free to phone me if there are any questions. Very truly yours, TRYCK, NYMAN & HAYES Marvin Beyer, P.E. Project Engineer MB:dea enclosures cc: Les Pace TRYCK NYMAN ~FIAYtES GRF"EN tBP.OOK SUBDIVI,51OM · WE. EL CONTROL ' ~/~: X~'~ 8 M odical. Forensic. Assoc ed Laboraaories of ka, linc, Envi,onmenmland Industt~ Se~i~s 7337 Old Sc'wutd II~hway Anchorage. A~u 99502 / K~TH ~UGLASS. bi.S. PmsMcnl and 344-t 81 t 349-4506 DAVID H. COLLINS, M.S., Vi~ Pres~ent  D~c~ o~ g~ness Opemlions ~d D~cclo~ of Laboratory O~ration~ Second and Fourth Anchorage Fund c/oTryck, Nyman & Hayes 740 I Street Anchorage, AK 99501 'l'elepi~one 279-0543 Account: #E-5482 Invoice/Job: #J-1089 Sample Type :Well Water Received:4-26-77 Analyst: DB Thank you for the opportunity to be of service. is also your invoice and is payable within 30 days. any questions concerning the results, please call. This report If you have SAMPLE ID: Analysis Total Dissolved Solids Sodium Potassium Magnesium ~langanese Iron Calcium Hardness as CaCO3 Alkalinity as CaCO3 Turbidity greenbrook Subdivision Result 161 mg/1 7 mg/1 ~0.5 mg/1 S mg/1 40.1 mg/1 (0.1 mg/1 25 mg/1 83 mg/1 87 mg/1 < 10 JTU ALA Code Charge 05038 $ 8.00 05048 8.00 05051 :8.00 05024 8.00 05025 8.00 05022 8.00 05052 8.00 05021 8.00 05001 8.00 05046 4.00 SAMPLE ID: ANALYSIS Color PH Conductivity Nitrate Sulfate Chloride REPORT OF ANALYSIS (Continued) RESULT ALA CODE' 0 units 05014 '7.4 05049 225 micromhos/cm 05015 0.4 mg/1 05032 1S mg/1 05042 <3.S rog/1 05050 TOTAL CtlARGE CHARGE $ 4.00 4.00 4.~)0 4. O0 , 4 . O0 $100.00 Sincerely yours, Environmental D±vis±on DJB/bb Anchora..~. R(~or(~g- ]:)i~t~io~ WATER WELL EASEblENT We, the undersigned owners of the properties affected, hereby create an easement for water well purposes as fo,llows: An casement 200 feet in radius having as its center a point which lies 150 feet southerly and 10 feet easterly of the northwest corner of . Lot l, Block 5 of the Greenbrook Subdivision as recorded in the Anchorage Recording District as Plat No. 74-147. Those lands affected are: Lot 1, Block 5; Block 3; and the rights-of-way of Freitag, Von Scheben, and " l-fuffman Roads. This easement .shall run forever with the land until such time as the water well should cease usage. ~ Owner, Lot 1, Block 5 and Block 3 2nd & 4th Anchorage Limited Partnership Leslie B. Pace, Manager Before me, the undersigned, a Notary Pnblic in and for the State of Alask, a, duly commissioned and sworn as such, this ~-~/h41ay of ~.~-~-~' 19 '77, personally appeared _~~_~ ~e_~/' ------~, ~o me known to-be the person described and who executed the above instrument and acknowledged to ~ne-that ~ signed and sealed the same freely and vohmtarily for the uses and purposes therein mentioned. ??- ~ot~¢~ 'P~[~lic in and for the State o~ Alaska My commission expires:~,/~) . 0 2 0 2 2 IW 0 M-W DRILLING, INC.( T' DRILLING LOG Well Owner Les Pace Use of Well Location (address of: Township, Range, Section, if known; or distance main road Corem Production Well Site - Greenbrook Subdivision Size of casing 6 Static water level 2 Screen (1 X ); Depth of Hole ft. (above) Perforated ( 58 feet Casedto 50,5 feet (Ttl Cag=52.52') (bl~hx~x) land surface. Finish of well (check one) open end ( ); ). Describe screen or perforation Johnson 304 SSI 0.040 slope: 56.35' Well pumping test at 50~gallons per (~ (minute) for 5,5 hours with of drawdown from static level. to,50.5' depth 46 ft, Date of completion 9 July 1976 WELL LOG Depth in feet from ground surface Give details of formations penetrated, size of material, color and hardness -0 TO 47 Existinq Well 47 ..TO. 48 ~ 48 TO 53 DB TO 57 57 TO_~5 8 TO .TO .TO TO TO TO_ TO_ __o .TO. TO. TO Silty Sand: small amount of qravel, clayey Sandy Gravel A/A: heaving (very small clay seam around 54,5') S~l~y Sand~ c]ayey 1--CUSTOMER files ob, ihe oonteni ~ this I~DAPT.' OF ~,,NVIRONM~;NTAL 14/ILLI, N~I,4. E6 ,~', GOt:~.'R,'VOR· . / ///3f~ScDENALISTREET 101YBIJILDItVG-RO0,~$.~ ANCflORAGE 99.581 Mr. Glen Huff Contracting Engineers & Associates 7010 Old Seward Hwy. Anchorage, Alaska 99502 SUBJECT: Ra~-~rook Subdivision Public Water System Dear Mr. Huff: The plans and specifications for this project are approved for the features with which this department.is concerned. We shall look forward to the submission of the. chemical analysis, the bacteriological analysis the well log' and pumping tests to complete our nitial review of the project. Yours truly, Kyle~-~, Ct~effry, P.EZ-~' Reglona I Env ronmental Engineer cc: Rolf Strickland, DEQ~'× April 22, 1,374 t,l~.~in Uuff Contracting E¢~gineers and Associates 701 'Jld Set'~ard ~{igh~ay Anchorage, Alaska 99503 SU[~JECT: Public ~later System For Gr~:mnbrook SuNdivision ~)ear ~r. tiuff: The Greater Al~caorage A~aa Borough Departm~n'~ of Envir(~n;~?ltal flua'lity has received and revie~-~ed the engin~ring ;~lans for '~c su~j~ct ~roject. ~e find that these plans ~e~t with all condition,s ~ith ~h'Jch this d~)partl:'~nt is co~)cerned, tie ~,ill look forv~ard to r(]ceiving as--buil'~ss along ~ith-che~ical an~.) bacterial analysis on the ~ell oncu t;~e I)roj(Jct is complete. Sho~ld ,/ou ~ave any questions regarding our rcvio~ ~}f these ~qans, l)tease contact the undersigned. S~ncerely, Rolf Strickla~d~ i~,.S. Chief Sanitarian M-(5-6';) / AIJASKA r~,~:dUFMENT OF tIEALTI{ AND ~ DIVISION OF PUBLIC HEALTH City ~ Zip Code Alaska Depar~men~ of HeM~h and W~lfm'e Mailing Address ~uslness Telephone No. In accm'dan.e wit, h Alaska Stat.res, qS~le 18. "Health and Safety", Chapter 05, See. ~8.05.040, (1 ~), (12), and rules and hm'ewith sabmi~ for your review' and a~proval, w~h resp~e~ to SAN~TAR~ F~ATURES, duplicate sets of complel~ plan~ (Give complete bu~ hvieg deserip~ion of / (Name of Design}fig I~nglneer, A~ehltect or Firm) ............................ -- (Address) / Architectls) duly licensed to practice in Alaska: ......... ib.~m~ ................................. This l.'O.[,mt is to be financed in the following nmnner: (List sero'ecs of funds and amounts). ~,mrces of f~lnds; $ .......... Z.:::: ................. Total es~.imated cost of this project is $ ................................... These~APlans are being submitted to you a~ least one mon[h prior to ~he contemplated date of ad~ert~ging.for bids We understand that construction shall no[ be started qn{JE~our final approval of these plans has been received; that no revisions in the plans affecting the SANITARY FNA~PURi~S of the project may be made sfibsequenl 1o receipt o[ yoor final approval tudess such revisions be submitLed and ap~roved; that constrDction will be carried out in accordanve with the approved pi:ms; and that unless consiruction on this project is started wili~in a two-year period subsequent to yom' approval, such approval will become vol(l; Very trolly yours, (Applicant)_ _~..X.5~.~. _~.~_ CONTRACTING ENGINEERS & ASSOC. ENGINEERING & SURVEYING 1801 STANTON AVENUE ANCHORAGE, ALASKA 99504 PHONE 34~-1334 Engineering Report Greenbrook Subdivision G.A.A.B. Alaska Water system for Block 1 Lot 1 thru 7 Block 2 Lot 1 thru 26 Block 3 one Lot Block 4 Lot 1 thru Block 5 Lot 1 and 2 Total lots served: 50 General 1. The system as designed will serve the 50 lots in this subdivision as noted above and as shown on the attached drawings. 2. The system as designed could be expanded. 3. There will be no industrial activity which wiZ1 effect the requirements of this wOOer system. 4. The estimaCed daily water consumption~assuming 100 g.p.d, m'in. and 3.25 people per residence and 50 residences is IOOX 3.25X 50 =16,250 gal.~day, or 11.2 gal. per min. This is the present and future requirement. The capacity of this system is based on the peak demand com- puted as'follows: ~ssuming for each lot: a. bathroom group with flush tank b. kitchen sink c. laundry tray Total supply fixture units per lot= 11. For 50 lots the load on the system in supply fixture units is 550. With this load the supply demand is equal to ]3~ g.p.m, for appr??imately 20 minutes or 2680 gal. With the installation o£ one 82 gallon Hydro-pneumatic s~or- age tank with ~ eff~tive volume for storage on each lot served and_ ~e in the well house, the total storage for this system will be: ' 82X~x51=2091 gal. Required pump capacity=-20. =29.5g.p.~. or 1770 gal. ~er hour. CONTRACTING ENGINEER & SSOC. ENGINEERING & SURVEYING 1801 STANTON AVENUE ANCHORAGE, ALASKA 99504 PHONE "~ ~)'~'1-79~ 349-1334 5. The source of water for this system will be a deep water~ well located as shown on the plans. The well will be drilled. and cased with a 6" casing to prevent ground water contamina- tion. The top of the casing will extend at least 12" above fin- ished grade with no pit aro.und the casing. A well house will be constructed over the well to allow all electrical controls to be located at the well. The well house will be insulated and weather tight. It will have a daylight screened drain and will be electrically hea~ed to prevent freezing. A pitless adaption will not be used and the discharge pipe will come out the top of the casing and. will be connected to the distribution header in the well house. The casing will be covered. 6. All development in this area depends on wells for their' water and the acquifier which this well penetrates has proven to produce water of a quality suitable for household uses. Prior to public use the water from this well will be tested for quality. A chemical analysis will also be made on the water. C. D. E. Permafrost is not known to be present. This is not a surface water system. Purification is not antio~ipated or proposed. Pressure will be mazntazn~d in the lines at all times by the use of a submersible pump with a minimum rating of 1710 ga. per hour wizh a dis~:~arge pressure of ~60 psl and a depth of water level of 300 feet. (Jacuzzie S~bmersible Pump No. ~S4DT or equal)· To minimize fluctuation in pressures, a hydro-pneumatic system consisting of one 82 gal. pr~'ssure tank will be located ia each res- idence and one in the well house. Pressure loss in the mains at peak pumping rate is n~gligible. Distribution System 1. The distribution lines will be constructed with appro×imately 1158 Lin. Ft. of 3" ~.F. approved water pipe and 50]0 Lin. Ft. of 2" N.S.F. approved water p~pe. Service connections with a corporation, stop at the main and a curb stop with service box CONTRACTING .ENGINEERS & ENC~]~NEE~NG & 1801 STANTON AVENUE ANCHORAGE, ALASKA 99504 PHONE ~'79- ~-792 349-1334 installed at the property' line or easement line for each lot will be constructed~ part of this system using 1620 Lin Ft. 3/4" N.S.F. approved type K copper water pipe. 2. There are no special features in the distribution system. 3. The distribution system will be installed with a minimum of lO' of cover over the distribution lines. 4. The system will be located in glacial till at the depth specified. 1. Water will be stored as specified in "E" 2. Fire protection has not been provided. H. Cost Estimates Construction Well with 6" casing 300' at ~20/ft. =46000.00 1].58 Lin. Ft. of 3" water line ~.. ~lO/ft=l1580.O0 5010 Lin. Ft. of 2" water line ~'f~9/ft -~45090.00 '~50 curb stops installed @ ~200.00 ea. -1©000.00 Submersible puml~,riser pipe,& 82g.tank= 2000.00 Well House = 1000.00 :~:~.. .- [ : ~7~670.00 ~.~Iainta-~;~ance cos~stimated to be ~6~.O0/yr. The following minim~ distances from the well to poi'~ts of poss- ible contamination to ground water supplies will be exceeded: 1. Any contamination-lO0 ft. 2. 'Sewers;septic tanks,disposal fields'-200 ft. 3. Seepage pits- 200 ft. Cast iron sewer lines only are permitted within 100 of the well. * Curb stops include service connection. Eighty-two gal. hydro- pneumatic tank to be installed by each builder as lots develop. Ail protective radii around this well shall be filed by recorded easement in the District Recorder's Office with a copy being sub- mitted with the as-builts 1801 '~Stanton ~n~horage, Alaska CONTRACTING ENGINEERS & ASSOC.. Phone: 279-1792 WATER SYSTEM CONSTRUCTION SPECIFICATIONS General All materials shall be of types shown on the plans and shall conform to -these specifications. All workmanship shall be according to good practices of each trade. Safety precautions shall be observed to prevent hazards to property, life or equipment through caving earth, electrical lines, flooding, fires, traffic and other potential causes. The site shall be kept free of accumulations of trash or debris from the work. Upon completion of construction the site shall be left in a neat and clean condition, graded to drain to established channels, WATER LINES A. Materials [ 2. ~alvan~zed pipe shall be of galvanized steel pipe conforming to ASTM specification A 120-68a; of galvanized wrought iron pipe coniforming to ASTM specification A 72-68, standard weight~ Joints shall be threaded and threaded couplings with N.P.S. threads shall be provided. 3. Copper pipe sha~ be flexible seamless pipe, Type "K" conforming 'to ASTM specification B-88~66. 4. Valves, gate valves shall be brass body bronze faced gate valves, pressure tested at 250 p.s.i. Service valves shall be Mueller Co. No. H-10202 or approved equal. 'B. Construction The trench shall be excavated to the depth shown on the plans and as staked. Galvanized pipe shall be installed by screwing the joints tight with suitable pipe wrenches. Approved pipe joint compound or white lead shall be applied to all male threads only prior to assembling the joint. Changes in §rade or alignment of galvanized pipe shall be accomplished with fittings and not by bending the pipe. Copper pipe shall be installed by laying it in the trench and assembling the joints. Threaded fittings shall be screwed on.to their mating fittings bef@re soldering. All pipes si~all be assembled at a joint before that joint is soldered, and the entire joint shall be soldered at one time. 'WATER SYSTE~,i CONSTRUCTION SP'~CIF[CAT~ONS Page 2. Before backfilling;"'all' newl~ installed ~Jater lines shall be tested for leaks by filling the lines with water and examining them under normal system pressure. C. Disinfection 1. After testing and after all leaks are-corrected, the newly installed water lines, well and pump shall be disinfected by filling with water solution containing not less than 100 ppm of available chlorine. The solution shall be retained in the system for a minimum of four hours and then thoroughly flushed from the system. :. :'": SP£ IT 80/-T COlYNECTOF? ./ ' ~/. 6;'~H~ .STOP ~une ~, 197g Dickinson-Osuald & P~rtners ~reet ~00 Cordova "+ Anci~orage, Alaska 99501 Attention: I~!r. l,!orris Os~¢ald Subject: Greenbrook Subdivision Dear ar. Oswald: The ~reater Ar, chorage Area ~orou,?h, De~)artment of E~.virom:;entai Quality has received and r~vi(~wed your latest design pattc~rns for the location of this sewer and water s~st~a in the subject property. i.le find that. the placement, of se~'er and t~at~r ~ m~ ~ ' S ~ e ''' ~ ~ ~' ~ ~ ~ 0 n ~ t ~ 0 lots aS shod-re, is adequate. Our ~taln probte~ in ~egards to this subdivision are the lamds lying north of an alignment line trend- ing northeast frc, m the south~-~st corner of Lot 24, Block 2 mdJoinin9 with the southeast corner of Lot 13, Block 4. ~le have soil tests supplied by yottr f~rm basically at five sep~rat~ locations indicating very po~r so~ls. The five basic points ar~ at the intersection of Lmngman Drive and t, an~tan Circl~, Lot 26: at the i)~ters~ction of Yon Scheben Drive and Freitag Drive, narticularly on' Lot 9, Block ~; on the lots you have sho~n that are not to be developed tn Block ~, on Lot 2, Block 5, and on Lot 15, 13 and 17, Block 5. gecaus~ of'these u~sattsfactory soils conditions, we feel that the northern ohio-third to one- half of this.subdivision should be blocked or tracted at this time and not dewloped for residential use. The lo~er one-half to two-thirds of this subdivision is at the bare ~inimum acceptable by this Department for on-site sc~tage disposal. ~!e do, hog, ever, feel that tn the majority of the cases you have taken this into consideration by increasing lot size, increasing the size of the seepage pits on these lots, locating wells as far a~ay as posstbl~ and in every effort making the best attempt at a k~orkable solution ~:tthout the inclusion of public sewer and water .~ystems. Les Pace Pa~e T~o ~ay 30, The reason we have recommended no development on th~ -"~' subject lots ts because the well red11 as shown on the data submitted shows tog close an Infringement from the wells on the adjoining lots. In an area known to have deftntte water problems we feel tt is unnecessarY'to compound these water problems by havtng wells backlng up:one on top of the ether. Thts ts why on our prev?ous comments tn different submittals on Greenbrook Untt #1 we have always recommended a community water syste~ for thts area. The lots in the subdtvlston we feel are suttable for develop- ment wtth on-stte sewer and water systems are: Lots 3,5,7, and 9, ~lock 3 Lots 1,3,5' ~lock 5 Should you have any questton rego~dJn~ our revtew of the 1n- for~atlon:~ub~ttted to this offtce, please contact the under- slgned. Sincerely, Roll 5trtc~land, Assistant BJrecto~ bb cc: Dtc~ Glasheen, Planntn~ ~tck~nso~-Oswald & Partners Hr. Les Pace 640 West 36th Avenue Anchorage, Alaska Subject: Greenbrook Subdivision Untt #1 Dear ~4r. P~ce: [he Oreater Anchorage Area Borough, Department of Environmental rualtty has revtewed All the soils t~formatton previously sub=ttted Ind the addttlon~l Information brought tn on Hay 24, 1972. Thts nformatton covers the entire Unit #l of the subject subdivision. ur general findings are that the soils tn thts entire area are ery-margtnal for on-stte sewage disposal. However, there are ome areas which a~e' beetle an~ we feel that t~ese areas should o suttabte for on site sewage d~sposal arid Individual water supply. e recommend tracttng or blocking the ¢ollowtng lots because of nacceptable soils, high water :able, peat or muskeg type soils a combtnat~o~ o~ the above ttems. 1. All of Block 4 and 81oc~ $ 2. Lot 6 through 12, Block 5 3. Lo~slO through 15, Block 3 4. Lots I and 2, Block 3 5. Lots 1, 2 a~d 3, Block 1 ~e recommend a community water system for the remaining lots or 0to on the platt stattng "~o development untt1 public uttlttte~s, sewer and water) a~e available for connection to all of these ors". The lots are as follows: Lot 4, 81oc~ $ Lot 2, Block 5 Lot 4, Block 3 Lot ~, Block 3 Lot ~, Block g Lot 3, Block 2 Lot 1, Block g Lo: 16, 14, 12 and 7, Block 1 Mr. Morris PoOo Two Jtln~ ~ 1972 ~t¢: would recommend approval of this subdivision providing the lands lyinq north of the llne previously described in the above section of this letter are put into large tracts. The use of this land in the northern portion of. the subdivision for residences is going to place a hardship on home builders tha'L ~e feel is unwarranted. The difficul, ty of designing sewer systems in areas tchere ti;ere is ~ knov~n depth of peat to some 5 to ~ feet with an underlying v~ater table or highly water saturated silt matert.~l makes their installation impossible. Also included ~ith this letter t~ a copy of the platt you sub* mitred to us with this line indicated for your convenience in tracttng the nort#ern property. Sho~ld you have any ouestions reqarUing our review of the plans, please contact the undersigned. Sincerely, Roll Strlckland, R.S. A~ststant D~rector bb cc: Alan Scheen, Planning ~ 0 0 -- .-I a~ //O£'E't:, + 0£ Z 0 / / 1'ERE: