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Item 3.6 South Central Wellfield Development Approve Plans and Specifications and Order Advertisement for Bids Request for City Council Action DEPARTMENT INFORMATION ORIGINATING DEPARTMENT REQUESTOR: MEETING DATE: Utilities Utility Manager Neidermeier January 27, 2025 PRESENTER(s) REVIEWED BY: ITEM #: Consent AE2S Engineer Schaefer City Administrator/Finance Director Flaherty 3.6 – Authorization to Bid South Central Wellfield STRATEGIC VISION MEETS: THE CITY OF OTSEGO: Is a strong organization that is committed to leading the community through innovative communication. X Has proactively expanded infrastructure to responsibly provide core services. Is committed to delivery of quality emergency service responsive to community needs and expectations in a cost-effective manner. Is a social community with diverse housing, service options, and employment opportunities. Is a distinctive, connected community known for its beauty and natural surroundings. AGENDA ITEM DETAILS RECOMMENDATION: City Staff is recommending City Council approval of authorization to solicit bids. ARE YOU SEEKING APPROVAL OF A CONTRACT? IS A PUBLIC HEARING REQUIRED? No No BACKGROUND/JUSTIFICATION: The Water Utility Capital Improvement Plan (CIP) includes funding for continuation of efforts to develop additional drinking water capacity in the “South Central” area of the City. As part of the Drinking Water Master Plan updates, a South Central WTP/Wellfield was recommended. Initial hydrogeological modeling has been completed, which analyzed the aquifer thickness throughout the designated SCWTP Zone to determine the best areas for future water supply wells. The next step is to administer a test well development and test pumping program to refine the groundwater model. The TCW-aquifer is susceptible to well interference if wells are located too closely together, and the test pumping will provide additional detail of the specific local conditions to assist in optimizing well placement and number of wells versus the cost of additional pipeline length. The test well program will also provide the opportunity to collect actual aquifer water samples to confirm water quality for the subsequent water treatment design. Finally, the test well pumping will provide important insight into the capacity expectations for this specific area of the TCW-aquifer, which is more variable than the Mount Simon aquifer that the City has historically sourced most drinking water (new Mount Simon water rights appropriations are not allowed). It is anticipated that the envisioned wellfield will need eight (8) TCW-aquifer wells in the future to supply the SCWTP, and the test pumping program will confirm this assumption. The scope of the test well and test pumping program includes: • Four (4) Test Wells & Three (3) Observation Wells – Two (2) Public Water Supply Wells (large diameter) – Two (2) Test Pumping Wells (small diameter) – Three (3) Observation Wells to Monitor the Aquifer During Test Pumping (small diameter) The hydrogeologic evaluation (professional services) had been previously contracted as part of the South Central Water Treatment Plant (WTP) Siting Study. The opinion of cost for the bid package is $1,265,000. The anticipated project bidding schedule is: • Initial Bid Advertisement: January 28, 2025 • Bid Opening: February 18, 2025 Likely bidders (well drillers) have reported a substantial backlog of existing work. The anticipated schedule based upon well driller feedback is that drilling would start in late 2025 or early 2026 based upon their already contracted work. The test pumping and subsequent data analysis is anticipated to be available in late summer 2026 to allow refinement and confirmation of the wellfield development program to support additional drinking water capacity for the City. SUPPORTING DOCUMENTS ATTACHED: • Drawings from “Otsego South-Central Wellfield Development – Phase 1A POSSIBLE MOTION PLEASE WORD MOTION AS YOU WOULD LIKE IT TO APPEAR IN THE MINUTES: Motion to authorize preparation of solicitation for bids for the project “Otsego South-Central Wellfield Development – Phase 1A, January 2025”. BUDGET INFORMATION FUNDING: BUDGETED: Fund 601 – Water Utility Yes Plotted: By: Twila Kemp Date: Thursday, January 23, 2025 File: W:\O\Otsego\05409-2023-009\CAD Dwgs\00-General\Plan Sheets\G-Cover-Index.dwgOTSEGO SOUTH-CENTRAL WELLFIELD DEVELOPMENT- PHASE 1APREPARED FOR:CITY OF OTSEGOAE2S PROJECT NO:ENGINEERING TEAM:LOCATION:OTSEGO, MINNESOTAALT. PROJECT NO: CIVIL ENGINEER05409-2023-009DATE:JANUARY 2025Advanced Engineering and Environmental Services, LLCCertification of Individual Project Design Disciplines AreIncluded On Their Individual Drawings, RespectivelyAdvanced Engineering and Environmental Services, LLC www.ae2s.com File: W:\O\Otsego\05409-2023-009\CAD Dwgs\00-General\Plan Sheets\G-Cover-Index.dwgPlotted: By: Twila Kemp Date: Thursday, January 23, 2025 File: W:\O\Otsego\05409-2023-009\CAD Dwgs\00-General\Plan Sheets\G-Cover-Index.dwg PROJECT TITLE:PROJECT NO:DATE:ALT. PROJECT NO:SHEET DESIGNATOR:SHEET NO:CLIENT:SHEET TITLE:PREPARED BY:CHECKED BY:APPROVED BY:SYM DATE APPR STATUS:Certification of Individual Project Design Disciplines AreIncluded On Their Individual Drawings, RespectivelyAdvanced Engineering and Environmental Services, LLC www.ae2s.com OTSEGO SOUTH-CENTRAL WELLFIELD DEVELOPMENT - PHASE 1AINDEX OF DRAWINGSCITY OF OTSEGOOTSEGO, MINNESOTA05409-2023-009 JANUARY 2025G002TRJRFRHCONSTRUCTION SHEET NUMBERDESCRIPTIONGENERALG001COVERG002INDEX OF DRAWINGSG003LOCATION MAPCIVILC101SITE 1C102SITE 2C103SITE 3C104SITE 4C105SITE 1 WELLSC106SITE 2 WELLSC107SITE 3 WELLSC108SITE 4 WELLS KITTSONROSEAULAKEOF THEWOODSMARSHALLPENNINGTONRED LAKEPOLKBELTRAMIKOOCHICHINGCOOKLAKEST. LOUISITASCANORMANCLAYBECKERMAHNOMENCLEARWATERHUBBARDCASSCARLTONPINEAITKINCROWWINGKANABECMILLE LACSMORRISON WADENAOTTER TAILWILKINTRAVERSEGRANTDOUGLASSTEVENSPOPETODDSTEARNSBIG STONESWIFTLACQUIPARLECHIPPEWAKANDIYOHIMEEKERWRIGHT BENTONSHERBURNEISANTIANOKACHISAGOYELLOW MEDICINERENVILLELINCOLNLYONREDWOODPIPESTONEMURRAYCOTTONWOODROCKNOBLESJACKSONMARTINFAIRBAULTFREEBORNMOWERFILLMOREHOUSTONWATONWANBROWNNICOLLETBLUEEARTHWASECASTEELEDODGEOLMSTEDWINONAWABASHAGOODHUERICELESUEURSIBLEY MCLEODCARVERSCOTTDAKOTAHENNEPINRAMSEYWASHINGTON1G003PROJECT LOCATION MAPWRIGHT COUNTY2G003PROJECT VICINITY MAPWRIGHT COUNTY3G003PROJECT AERIAL MAPOTSEGO, MINNESOTAFile: W:\O\Otsego\05409-2023-009\CAD Dwgs\00-General\Plan Sheets\G-Cover-Index.dwgPlotted: By: Twila Kemp Date: Thursday, January 23, 2025 File: W:\O\Otsego\05409-2023-009\CAD Dwgs\00-General\Plan Sheets\G-Cover-Index.dwg PROJECT TITLE:PROJECT NO:DATE:ALT. PROJECT NO:SHEET DESIGNATOR:SHEET NO:CLIENT:SHEET TITLE:PREPARED BY:CHECKED BY:APPROVED BY:SYM DATE APPR STATUS:Certification of Individual Project Design Disciplines AreIncluded On Their Individual Drawings, RespectivelyAdvanced Engineering and Environmental Services, LLC www.ae2s.com OTSEGO SOUTH-CENTRAL WELLFIELD DEVELOPMENT - PHASE 1ALOCATION MAPCITY OF OTSEGOOTSEGO, MINNESOTA05409-2023-009 JANUARY 2025G003TRJRFRHCONSTRUCTIONSITE No. 3SITE No. 1SITE No. 2SITE No. 4OTSEGOPROJECTLOCATIONSPROJECTLOCATION FUTURE WATERTREATMENTPLANTFile: W:\O\Otsego\05409-2023-009\CAD Dwgs\01-Civil\Plan Sheets\C_Well Section.dwgPlotted: By: Twila Kemp Date: Thursday, January 23, 2025 File: W:\O\Otsego\05409-2023-009\CAD Dwgs\01-Civil\Plan Sheets\C_Well Section.dwg PROJECT TITLE:PROJECT NO:DATE:ALT. PROJECT NO:SHEET DESIGNATOR:SHEET NO:CLIENT:SHEET TITLE:PREPARED BY:CHECKED BY:APPROVED BY:SYM DATE APPR STATUS:Certification of Individual Project Design Disciplines AreIncluded On Their Individual Drawings, RespectivelyAdvanced Engineering and Environmental Services, LLC www.ae2s.com OTSEGO SOUTH-CENTRAL WELLFIELD DEVELOPMENT - PHASE 1ASITE 1CITY OF OTSEGOOTSEGO, MINNESOTA05409-2023-009 JANUARY 2025C101TRKRFRHCONSTRUCTIONGENERAL NOTES1.CONTRACTOR SHALL PROVIDE FILL AND GRADE SITE INVICINITY OF WELL TO DIVERT SURFACE WATER AWAYFROM WELL AND TO PREVENT PONDING WITHIN 50 FEETOF WELL. CONTRACTOR SHALL PROVIDE CLEAN FILL ASNECESSARY TO PROVIDE POSITIVE DRAINAGE. CAPCASING MINIMUM 3 FEET ABOVE GRADE.2.DEPTHS TO FORMATIONS ARE APPROXIMATE AND VARY.CONTRACTOR SHALL VERIFY DEPTHS. CASING LENGTHSMAY VARY.JPWONEWOC OBSERVATIONWELL (OW-1WON)1C101SITE 180'080'160'BURIED SAND AND GRAVELOBSERVATION WELL(OW-1QBAA)PWS WELL NO. 13 File: W:\O\Otsego\05409-2023-009\CAD Dwgs\01-Civil\Plan Sheets\C_Well Section.dwgPlotted: By: Twila Kemp Date: Thursday, January 23, 2025 File: W:\O\Otsego\05409-2023-009\CAD Dwgs\01-Civil\Plan Sheets\C_Well Section.dwg PROJECT TITLE:PROJECT NO:DATE:ALT. PROJECT NO:SHEET DESIGNATOR:SHEET NO:CLIENT:SHEET TITLE:PREPARED BY:CHECKED BY:APPROVED BY:SYM DATE APPR STATUS:Certification of Individual Project Design Disciplines AreIncluded On Their Individual Drawings, RespectivelyAdvanced Engineering and Environmental Services, LLC www.ae2s.com OTSEGO SOUTH-CENTRAL WELLFIELD DEVELOPMENT - PHASE 1ASITE 2CITY OF OTSEGOOTSEGO, MINNESOTA05409-2023-009 JANUARY 2025C102TRKRFRHCONSTRUCTIONGENERAL NOTES1.CONTRACTOR SHALL PROVIDE FILL AND GRADE SITE INVICINITY OF WELL TO DIVERT SURFACE WATER AWAYFROM WELL AND TO PREVENT PONDING WITHIN 50 FEETOF WELL. CONTRACTOR SHALL PROVIDE CLEAN FILL ASNECESSARY TO PROVIDE POSITIVE DRAINAGE. CAPCASING MINIMUM 3 FEET ABOVE GRADE.2.DEPTHS TO FORMATIONS ARE APPROXIMATE AND VARY.CONTRACTOR SHALL VERIFY DEPTHS. CASING LENGTHSMAY VARY.JP1C102SITE 2SITE NO. 2TEST WELL80'080'160' WETLAND BOUNDARYFile: W:\O\Otsego\05409-2023-009\CAD Dwgs\01-Civil\Plan Sheets\C_Well Section.dwgPlotted: By: Twila Kemp Date: Thursday, January 23, 2025 File: W:\O\Otsego\05409-2023-009\CAD Dwgs\01-Civil\Plan Sheets\C_Well Section.dwg PROJECT TITLE:PROJECT NO:DATE:ALT. PROJECT NO:SHEET DESIGNATOR:SHEET NO:CLIENT:SHEET TITLE:PREPARED BY:CHECKED BY:APPROVED BY:SYM DATE APPR STATUS:Certification of Individual Project Design Disciplines AreIncluded On Their Individual Drawings, RespectivelyAdvanced Engineering and Environmental Services, LLC www.ae2s.com OTSEGO SOUTH-CENTRAL WELLFIELD DEVELOPMENT - PHASE 1ASITE 3CITY OF OTSEGOOTSEGO, MINNESOTA05409-2023-009 JANUARY 2025C103TRKRFRHCONSTRUCTIONGENERAL NOTES1.CONTRACTOR SHALL PROVIDE FILL AND GRADE SITE INVICINITY OF WELL TO DIVERT SURFACE WATER AWAYFROM WELL AND TO PREVENT PONDING WITHIN 50 FEETOF WELL. CONTRACTOR SHALL PROVIDE CLEAN FILL ASNECESSARY TO PROVIDE POSITIVE DRAINAGE. CAPCASING MINIMUM 3 FEET ABOVE GRADE.2.DEPTHS TO FORMATIONS ARE APPROXIMATE AND VARY.CONTRACTOR SHALL VERIFY DEPTHS. CASING LENGTHSMAY VARY.JP1C103SITE 3PWS WELL NO. 1450'050'100'WONEWOCOBSERVATION WELL(OW-2WON) FUTURE FIRESTATIONFile: W:\O\Otsego\05409-2023-009\CAD Dwgs\01-Civil\Plan Sheets\C_Well Section.dwgPlotted: By: Twila Kemp Date: Thursday, January 23, 2025 File: W:\O\Otsego\05409-2023-009\CAD Dwgs\01-Civil\Plan Sheets\C_Well Section.dwg PROJECT TITLE:PROJECT NO:DATE:ALT. PROJECT NO:SHEET DESIGNATOR:SHEET NO:CLIENT:SHEET TITLE:PREPARED BY:CHECKED BY:APPROVED BY:SYM DATE APPR STATUS:Certification of Individual Project Design Disciplines AreIncluded On Their Individual Drawings, RespectivelyAdvanced Engineering and Environmental Services, LLC www.ae2s.com OTSEGO SOUTH-CENTRAL WELLFIELD DEVELOPMENT - PHASE 1ASITE 4CITY OF OTSEGOOTSEGO, MINNESOTA05409-2023-009 JANUARY 2025C104TRKRFRHCONSTRUCTIONGENERAL NOTES1.CONTRACTOR SHALL PROVIDE FILL AND GRADE SITE INVICINITY OF WELL TO DIVERT SURFACE WATER AWAYFROM WELL AND TO PREVENT PONDING WITHIN 50 FEETOF WELL. CONTRACTOR SHALL PROVIDE CLEAN FILL ASNECESSARY TO PROVIDE POSITIVE DRAINAGE. CAPCASING MINIMUM 3 FEET ABOVE GRADE.2.DEPTHS TO FORMATIONS ARE APPROXIMATE AND VARY.CONTRACTOR SHALL VERIFY DEPTHS. CASING LENGTHSMAY VARY.JP1C104SITE 4SITE NO. 4 TESTWELL80'080'160' 0' (DEPTH IN FEET)100'300'200'950'± EXISTINGGRADE ELEV0'190'145'240'File: W:\O\Otsego\05409-2023-009\CAD Dwgs\01-Civil\Plan Sheets\C_Well Section Cuts.dwgPlotted: By: Twila Kemp Date: Thursday, January 23, 2025 File: W:\O\Otsego\05409-2023-009\CAD Dwgs\01-Civil\Plan Sheets\C_Well Section Cuts.dwg PROJECT TITLE:PROJECT NO:DATE:ALT. PROJECT NO:SHEET DESIGNATOR:SHEET NO:CLIENT:SHEET TITLE:PREPARED BY:CHECKED BY:APPROVED BY:SYM DATE APPR STATUS:Certification of Individual Project Design Disciplines AreIncluded On Their Individual Drawings, RespectivelyAdvanced Engineering and Environmental Services, LLC www.ae2s.com OTSEGO SOUTH-CENTRAL WELLFIELD DEVELOPMENT - PHASE 1ASITE 1 WELLSCITY OF OTSEGOOTSEGO, MINNESOTA05409-2023-009 JANUARY 2025C105TRKRFRHCONSTRUCTIONGENERAL NOTES1.CONTRACTOR SHALL PROVIDE FILL AND GRADE SITE INVICINITY OF WELL TO DIVERT SURFACE WATER AWAYFROM WELL AND TO PREVENT PONDING WITHIN 50 FEETOF WELL. CONTRACTOR SHALL PROVIDE CLEAN FILL ASNECESSARY TO PROVIDE POSITIVE DRAINAGE. CAPCASING MINIMUM 3 FEET ABOVE GRADE.2.DEPTHS TO FORMATIONS ARE APPROXIMATE AND VARY.CONTRACTOR SHALL VERIFY DEPTHS. CASING LENGTHSMAY VARY.DRIFT160' - BOTTOM OF 24"DRIVEN STEEL CASING1C105WELL No. 13SCALE: NONETUNNEL CITYWONEWOCEAU CLAIRE160'± OF 24" DRIVEN CASING205' - BOTTOM OF18" STEEL CASING240' - BOTTOM OF 23 1/2" BOREHOLEDEVELOPED WELL CAVITY205'± OF 18" CASINGJP24" X 18" PWS WELLABOVE GRADE LOCKING CAP CASING:2.5' ABOVE GROUND SURFACE3C105OW-1QBAASCALE: NONE2C105OW-1WONSCALE: NONE190' - BOTTOM OF 4" STEEL CASINGGROUT190'± OF 4" CASING90' - BOTTOM OF 2" STEEL CASING90'± OF 2" CASING10' STAINLESS STEEL VEEWIRE 20 SLOTDEVELOPED WELL CAVITY240' - BOTTOM OF 3 7/8" BOREHOLE8" BOREHOLE6" BOREHOLEGROUTGROUT100' - BOTTOM OF 6" BOREHOLESAND PACKABOVE GRADE TEMPORARY CAPABOVE GRADE LOCKING CAP CASING:2.5' ABOVE GROUND SURFACE 940'± EXISTINGGRADE ELEV0'140'180'230'0' (DEPTH IN FEET)100'200'File: W:\O\Otsego\05409-2023-009\CAD Dwgs\01-Civil\Plan Sheets\C_Well Section Cuts.dwgPlotted: By: Twila Kemp Date: Thursday, January 23, 2025 File: W:\O\Otsego\05409-2023-009\CAD Dwgs\01-Civil\Plan Sheets\C_Well Section Cuts.dwg PROJECT TITLE:PROJECT NO:DATE:ALT. PROJECT NO:SHEET DESIGNATOR:SHEET NO:CLIENT:SHEET TITLE:PREPARED BY:CHECKED BY:APPROVED BY:SYM DATE APPR STATUS:Certification of Individual Project Design Disciplines AreIncluded On Their Individual Drawings, RespectivelyAdvanced Engineering and Environmental Services, LLC www.ae2s.com OTSEGO SOUTH-CENTRAL WELLFIELD DEVELOPMENT - PHASE 1ASITE 2 WELLSCITY OF OTSEGOOTSEGO, MINNESOTA05409-2023-009 JANUARY 2025C106TRKRFRHCONSTRUCTIONGENERAL NOTES1.CONTRACTOR SHALL PROVIDE FILL AND GRADE SITE INVICINITY OF WELL TO DIVERT SURFACE WATER AWAYFROM WELL AND TO PREVENT PONDING WITHIN 50 FEETOF WELL. CONTRACTOR SHALL PROVIDE CLEAN FILL ASNECESSARY TO PROVIDE POSITIVE DRAINAGE. CAPCASING MINIMUM 3 FEET ABOVE GRADE.2.DEPTHS TO FORMATIONS ARE APPROXIMATE AND VARY.CONTRACTOR SHALL VERIFY DEPTHS. CASING LENGTHSMAY VARY.JPTUNNEL CITYWONEWOCEAU CLAIREDEVELOPED WELL CAVITY155' - BOTTOM OF 10"DRIVEN STEEL CASING1C106SITE NO. 2 TEST WELLSCALE: NONEDRIFT155'± OF 10" DRIVEN CASING180'± OF 6" CASING180' - BOTTOM OF 6" STEEL CASINGWITH GROUT PACKERGROUT230' - BOTTOM OF 9 7/8" BOREHOLE10" X 6" TEST WELLABOVE GRADETEMPORARY CAP 925'± EXISTINGGRADE ELEV0'135'200'260'0' (DEPTH IN FEET)100'200'300'File: W:\O\Otsego\05409-2023-009\CAD Dwgs\01-Civil\Plan Sheets\C_Well Section Cuts.dwgPlotted: By: Twila Kemp Date: Thursday, January 23, 2025 File: W:\O\Otsego\05409-2023-009\CAD Dwgs\01-Civil\Plan Sheets\C_Well Section Cuts.dwg PROJECT TITLE:PROJECT NO:DATE:ALT. PROJECT NO:SHEET DESIGNATOR:SHEET NO:CLIENT:SHEET TITLE:PREPARED BY:CHECKED BY:APPROVED BY:SYM DATE APPR STATUS:Certification of Individual Project Design Disciplines AreIncluded On Their Individual Drawings, RespectivelyAdvanced Engineering and Environmental Services, LLC www.ae2s.com OTSEGO SOUTH-CENTRAL WELLFIELD DEVELOPMENT - PHASE 1ASITE 3 WELLSCITY OF OTSEGOOTSEGO, MINNESOTA05409-2023-009 JANUARY 2025C107TRKRFRHCONSTRUCTIONGENERAL NOTES1.CONTRACTOR SHALL PROVIDE FILL AND GRADE SITE INVICINITY OF WELL TO DIVERT SURFACE WATER AWAYFROM WELL AND TO PREVENT PONDING WITHIN 50 FEETOF WELL. CONTRACTOR SHALL PROVIDE CLEAN FILL ASNECESSARY TO PROVIDE POSITIVE DRAINAGE. CAPCASING MINIMUM 3 FEET ABOVE GRADE.2.DEPTHS TO FORMATIONS ARE APPROXIMATE AND VARY.CONTRACTOR SHALL VERIFY DEPTHS. CASING LENGTHSMAY VARY.JP1C107WELL NO. 14SCALE: NONEDRIFTTUNNEL CITYWONEWOCEAU CLAIRE2C107OW-2WONSCALE: NONEABOVE GRADETEMPORARY CAP150'± OF 24" DRIVEN CASING215'± OF 18" CASING150' - BOTTOM OF 24" DRIVEN STEELCASING215' - BOTTOM OF 18" STEEL CASINGGROUTABOVE GRADE LOCKING CAP CASING:2.5' ABOVE GROUND SURFACE215'± OF 4" CASING215' - BOTTOM OF 4" STEEL CASINGGROUT260' - BOTTOM OF 23 1/2" BOREHOLEDEVELOPED WELL CAVITY260' - BOTTOM OF 3 7/8" BOREHOLEDEVELOPED WELL CAVITY8" BOREHOLE24" X 18" PWS WELL 935'± EXISTINGGRADE ELEV0'0' (DEPTH IN FEET)100'200'300'400'25'75'160'175'275'225'File: W:\O\Otsego\05409-2023-009\CAD Dwgs\01-Civil\Plan Sheets\C_Well Section Cuts.dwgPlotted: By: Twila Kemp Date: Thursday, January 23, 2025 File: W:\O\Otsego\05409-2023-009\CAD Dwgs\01-Civil\Plan Sheets\C_Well Section Cuts.dwg PROJECT TITLE:PROJECT NO:DATE:ALT. PROJECT NO:SHEET DESIGNATOR:SHEET NO:CLIENT:SHEET TITLE:PREPARED BY:CHECKED BY:APPROVED BY:SYM DATE APPR STATUS:Certification of Individual Project Design Disciplines AreIncluded On Their Individual Drawings, RespectivelyAdvanced Engineering and Environmental Services, LLC www.ae2s.com OTSEGO SOUTH-CENTRAL WELLFIELD DEVELOPMENT - PHASE 1ASITE 4 WELLSCITY OF OTSEGOOTSEGO, MINNESOTA05409-2023-009 JANUARY 2025C108TRKRFRHCONSTRUCTIONGENERAL NOTES1.CONTRACTOR SHALL PROVIDE FILL AND GRADE SITE INVICINITY OF WELL TO DIVERT SURFACE WATER AWAYFROM WELL AND TO PREVENT PONDING WITHIN 50 FEETOF WELL. CONTRACTOR SHALL PROVIDE CLEAN FILL ASNECESSARY TO PROVIDE POSITIVE DRAINAGE. CAPCASING MINIMUM 3 FEET ABOVE GRADE.2.DEPTHS TO FORMATIONS ARE APPROXIMATE AND VARY.CONTRACTOR SHALL VERIFY DEPTHS. CASING LENGTHSMAY VARY.TILLSAND &GRAVELABOVE GRADETEMPORARY CAP225' - BOTTOM OF 9 7/8" BOREHOLE190'± OF 6" CASINGJP1C108SITE NO. 4 TEST WELLSCALE: NONE175' - BOTTOM OF 10"DRIVEN STEEL CASINGTILLTUNNEL CITYWONEWOCEAU CLAIREMT. SIMON175'± OF 10" DRIVEN CASINGGROUT190' - BOTTOM OF 6" STEEL CASINGWITH GROUT PACKERDEVELOPED WELL CAVITY10' x 6" TEST WELL