DWR #81626 # DOGGR Well API #1132385 NDM Well 2 NDM Well 1 DWR #499484 # DOGGR Well API #113238 West Irrigation Well NDMCSD Stand-by Well # # 8" Domestic Well DOGGR Well API #1132319 AÚE Davis!"c$ City of Davis Well 27 City of Davis Well 31 California DOGGR Well City of Davis Well # Golf Course Well # Private Well WELL LOCATION MAP CSA FEBRUARY 29 Figure 1 NORTH.125.25 NOTES: ESRI Microsoft Virtual Earth Miles \\Sacfile1\Jobs\Jobs\8359_Davis, City of\8359.6 North Davis Meadows CSA\GIS\Tasks\Well_Location Map_21224_V1.mxd 3/2/21 11:42:31 AM sspaeth
BOREHOLE DATA (Geophysical Data from NDM CSA Well 2) Driller's Log Estimated -7 (5 mv / div) -45-2 64-inch / 16-inch (ohmmeter2 / meter) 5 1 WELL 1 PRODUCTION WELL AS-BUILT Dark Brown Ground Surface Silty Dark Brown w/ Some and Silty 5 65 Sanitary Seal /Cement Grout Light Brown 24" Diameter Borehole Light Brown GP 1 12.75" O.D. x.25" Wall Steel (Typ.) and Lenses GC 15 15 Light Brown and Lenses w/ Some Fines Silty clay Light Brown w/ Fine 2 Well Screen 12.75" O.D. x.25" Wall w/.6" Slot Size (Typ.) Silty Light Brown GW GW Brown Lenses 25 Envelope Schwarzgruber 1:1 Blend y Brown w/ Lenses 3 and Interbedded with and Gray Very Fine y Blue Lenses Black Fine 35 34 37 4 y Blue w/ Fine Lenses 45 Coarse to Pea w/ GW 49 Total Borehole Depth y Light Gray w/ Lenses 5 Constructed 1987 L = 21.3 feet Q = 5 gpm PWL = 197 Q/s = 2.8 gpm/foot 55 Water Quality y 6 8/19/29 Specific Conductance 88 μmhos/cm Nitrate as NO3 range 8-57 mg/l 8359.6 FIGURE 2 SHEET 1 OF 1 AS-BUILT PLANS FOR COUNTY SERVICE AREA WELL 1 : 3/1/1 18:36 SCALE: V: 1" = 5' DRAWN BY: S.AETH DESIGNED BY: LAYNE ECKED BY: L. ERNST J:\Jobs\8359.6 North Davis Meadows CSA\Strater ENGR. BY INIT APPROVED
BOREHOLE DATA Driller's Log Estimated -7 (5 mv / div) -45-2 64-inch / 16-inch (ohmmeter2 / meter) 5 1 WELL 2 PRODUCTION WELL AS-BUILT Brown Tan Tan w/ and and Fine to Coarse Coarse to Small Light Brown 5 5 Ground Surface Sanitary Seal /Cement Grout Brown Sticky 1 2" Diameter Borehole Brown Sticky w/ 15 12.75" O.D. x.25" Wall Steel (Typ.) GP 2 182 22 Well Screen 12.75" O.D. x.25" Wall w/.7" Slot Size (Typ.) Pea GP Brown Sticky w/ Fine Pea Yellow Brown Sticky GC 25 Envelope 6 x 12 Gradation w/ Brown Sticky w/ Fine Fine to Coarse w/ Brown 3 32 Brown w/ Fine to Coarse w/ Gray Brown Fine to Medium 35 352 Blue w/ Layers of and w/ Stone Green Brown Brown Blue w/ Fine s GW 4 Brown w/ Streaks and Fine to Coarse 45 452 462 Brown 472 482 Brown w/ 5 52 Constructed 1996 Well Sump Total Borehole Depth 55 6 L = 52.5 feet Q = 45 gpm PWL = 12.47 feet Q/s = 8.9 gpm/foot Water Quality 8/19/29 Specific Conductance 1,2 μmhos/cm Nitrate as NO3 range 21-49 mg/l 8359.6 FIGURE 3 SHEET 1 OF 1 AS-BUILT PLANS FOR COUNTY SERVICE AREA WELL 2 : 3/1/1 18:37 SCALE: V: 1" = 5' DRAWN BY: S.AETH DESIGNED BY: LAYNE ECKED BY: L. ERNST J:\Jobs\8359.6 North Davis Meadows CSA\Strater ENGR. BY INIT APPROVED
BOREHOLE DATA (Geophysical Data from Davis Municipal Golf Course West Irrigation Well) Driller's Log Estimated (1 mv / div) 5 1 Single Point (ohmmeter2 / meter) 5 1 STAND-BY WELL PRODUCTION WELL AS-BUILT Top Soil Ground Surface 5 5 6 Sanitary Seal /Cement Grout Fill Pipes and y 1 22" Diameter Borehole Envelope 15 12.75" O.D. x 3/16" Wall Steel (Typ.) and and 2 185 2 27 28 223 224 Wire-Wrapped Well Screen 12.75" O.D. Steel w/.8" Slot Size (Johson Irrigator) (Typ.) Sounding Pipe Well Sump 25 25 and y 3 Pilot Hole (8" Diameter) 35 4 4 Total Pilot Hole Depth Constructed 1979 No intitial yield data available 45 Water Quality 8/19/29 Specific Conductance 1, μmhos/cm Nitrate as NO3 32 mg/l 5 55 6 8359.6 FIGURE 4 SHEET 1 OF 1 AS-BUILT PLANS FOR COUNTY SERVICE AREA STAND-BY WELL : 3/1/1 18:55 SCALE: V: 1" = 5' DRAWN BY: S.AETH DESIGNED BY: CITY of DAVIS ECKED BY: L.ERNST J:\Jobs\8359.6 North Davis Meadows CSA\Strater ENGR. BY INIT APPROVED
BOREHOLE DATA Driller's Log Estimated (5 mv / div) 5 1 64-inch / 16-inch (ohmmeter2 / meter) 5 1 WEST IRRIGATION WELL PRODUCTION WELL AS-BUILT Top Soil Ground Surface Gray Fine Coarse Small 5 57 Sanitary Seal /Cement Grout Soft 24" Diameter Borehole 1 Envelope Pea Hard Small Loose Small Loose Sticky Small Tight Sticky Medium GW GW 15 2 188 198 12.75" O.D. x.25" Wall Steel (Typ.) Wire-Wrapped Well Screen 12.75" O.D. Steel w/.1" Slot Size (Johnson Irrigator) Sticky 222 Well Sump and Sticky and GC GC 25 246 Constructed 1974 Total Borehole Depth Sticky 3 L = 16.7 feet Q = 5 gpm PWL = 53.2 feet Q/s = 13.7 gpm/foot Hard Water Quality Brown 35 2/4/21 Specific Conductance 1,5 umhos/cm Nitrate as NO 3 44 mg/l Blue Gray 4 45 5 55 6 8359.6 FIGURE 5 SHEET 1 OF 1 AS-BUILT PLANS FOR COUNTY SERVICE AREA WEST IRRIGATION WELL : 3/1/1 18:54 SCALE: V: 1" = 5' DRAWN BY: S.AETH DESIGNED BY: E.E.LUHDORFF ECKED BY: L. ERNST J:\Jobs\8359.6 North Davis Meadows CSA\Strater ENGR. BY INIT APPROVED
BOREHOLE DATA (Geophysical Data from Davis Municipal Golf Course West Irrigation Well) Driller's Log Estimated (1 mv / div) 5 1 Single Point (ohmmeter 2 / meter) 5 1 8-IN DOMESTIC WELL AS-BUILT Top Soil Ground Surface 24" Diameter Borehole y Coarse and 5 6 Conductor Casing 18" Diameter x 3/16" Wall Steel Sanitary Seal /Cement Grout and Coarse Brown 1 18" Diameter Borehole Envelope y 15 8.625" O.D. x 3/16" Wall Steel (Typ.) Loose 2 184 24 Louvered Well Screen 8.625" O.D. x 3/16" Wall Steel w/ 1/8" x 1 3/4" Perforations (Typ.) y y 25 268 288 Total Borehole Depth 3 Constructed 1968 y L 55 feet Q = 42 gpm PWL 14 feet Q/s = 8.5 gpm/foot Fine Blue 35 Water Quality No water quality data available 4 45 5 55 6 8359.6 FIGURE 6 SHEET 1 OF 1 AS-BUILT PLANS FOR COUNTY SERVICE AREA DAVIS GOLF COURSE 8-IN DOMESTIC WELL : SCALE: V: 1" = 5' DRAWN BY: 3/2/1 13:21 S.AETH DESIGNED BY: CITY of DAVIS ECKED BY: L.ERNST J:\Jobs\8359.6 North Davis Meadows CSA\Strater ENGR. INIT BY APPROVED
COUNTY SERVICE AREA CONCEPTUAL GEOLOGIC AND WATER QUALITY COLUMN Depth Lithology Anticipated USCS Anticipated Water Quality 5 1 15 EC - Likely Very High (above 9 μmhos/cm) NO3 - Likely Very High (above 45 mg/l) Mn - Unknown As - Unknown EC - Likely Very High (above 9 μmhos/cm) NO3 - Likely Very High (above 45 mg/l) Mn - Unknown As - Unknown 2 EC - 1,5 μmhos/cm NO3 - Near or above 45 mg/l Mn - <1 μg/l As - 2-4 μg/l 25 3 35 ey Yellow SC EC - 8-1, μmhos/cm NO3 - <1-25 mg/l Mn - <1 μg/l As - 4-6 μg/l 4 Blue 45 5 Gray EC - Unknown NO3 - Unknown (Likely <1 μg/l) Mn - Unknown As - Unknown 55 6 Gray 65 7 75 8 85 Stringers EC - 45 μmhos/cm NO3 < 1 mg/l Mn - 1-4 μg/l As - less than 5 μg/l 9 State of California DPH Maximum Contaminant Level (MCL) Constiuent MCL/Units Specific Conductance (EC) Nitrate (NO 3 ) Manganese (Mn) Arsenic (As) 9 μmhos/cm 45 mg/l 5 μg/l 1 μg/l 8359.6 FIGURE 7 SHEET 1 OF 1 CONCEPTUAL GEOLOGIC AND WATER QUALITYCOLUMN COUNTY SERVICE AREA : 3/1/1 18:28 SCALE: NOT TO SCALE DRAWN BY: S.AETH DESIGNED BY: L. ERNST ECKED BY: L. ERNST J:\Jobs\8359.6 North Davis Meadows CSA\Strater ENGR. BY INIT APPROVED
55 5 45 4 35 3 25 2 NDM II Nitrate Figure 8 Oct-95 Jul-98 Apr-1 Jan-4 Oct-6 Jul-9 Apr-12 Date NO3 (ppm)
6 5 4 3 2 1 NDM I Nitrate Figure 9 Mar-86 Dec-88 Sep-91 Jun-94 Mar-97 Dec-99 Sep-2 May-5 Feb-8 Nov-1 Aug-13 Date NO3 (ppm)
CONCEPTUAL BOREHOLE DATA Lithology -7 (1 mv / div) -45-2 16-inch (ohmmeter 2 / meter) 5 1 CONCEPTUAL PRODUCTION WELL DESIGN INTERMEDIATE AQUIFER OPTION 3 1 Ground Surface 5 24" Diameter Borehole 1 Annular Seal /Cement Grout 15 Sounding Pipe Sch. 4 B 184 12.75" O.D. 2 25 27 28 Fill Pipe 3" Sch. 4 B 3 35 ey Yellow SC Well Screen 12.75" O.D. 35 35 358 368 Envelope Blue 4 41 42 Bentonite Seal (Typ) Gray 45 5 45 48 49 5 Well Sump w/se Type End Cap Total Borehole Depth 55 6 Gray 65 7 75 Stringers 8 85 9 8359.6 FIGURE 1 SHEET OF PRODUCTION WELL DESIGN FOR CONCEPTUAL PRODUCTION WELL INTERMEDIATE AQUIFER OPTION : 3/2/1 1:48 SCALE: V: 1" = 5' DRAWN BY: S.AETH DESIGNED BY: L.ERNST ECKED BY: L.ERNST J:\Jobs\8359_Davis, City of\8359.6 North Davis Meadows CSA\Strater ENGR. INIT BY APPROVED
CONCEPTUAL BOREHOLE DATA Lithology -7 (1 mv / div) -45-2 16-inch (ohmmeter2 / meter) 5 1 CONCEPTUAL PRODUCTION WELL DESIGN DEEP AQUIFER OPTION 3 1 Ground Surface 38" Diameter Borehole 5 5 Conductor Casing 3" O.D. 24" Diameter Borehole 1 Annular Seal /Cement Grout 15 Sounding Pipe 2 184 12.75" O.D. (Typ.) 25 27 28 Fill Pipe 3 ey Yellow SC 35 358 368 Blue 4 Gray 45 5 55 6 6 Gray 62 65 7 Envelope 75 Stringers 77 8 85 Well Screen 12.75" O.D. (Typ.) 9 88 89 9 Well Sump w/se Type End Cap Total Borehole Depth 8359.6 FIGURE 11 SHEET OF PRODUCTION WELL DESIGN FOR CONCEPTUAL PRODUCTION WELL DEEP AQUIFER OPTION : 3/2/1 1:36 SCALE: V: 1" = 5' DRAWN BY: S.AETH DESIGNED BY: L.ERNST ECKED BY: L.ERNST J:\Jobs\8359_Davis, City of\8359.6 North Davis Meadows CSA\Strater ENGR. BY INIT APPROVED
CONCEPTUAL BOREHOLE DATA (1 mv / div) 16-inch (ohmmeter 2 / meter) CONCEPTUAL DEEP MONITORING WELL DESIGN Lithology -7-45 -2 5 1 2 5 12 1/4" Borehole Annular Seal /Cement Grout 1 15 2" Schedule 4 PVC (Typ) 2 25 27 ey Yellow SC 3 35 295 35 325 345 355 365 Well Screen 2" Schedule 4 PVC w/.3" Slot Size (Typ) Blue 4 41 42 Bentonite Seal (Typ) Gray 45 45 46 Envelope 5 5 51 8 3/4" Borehole 55 58 6 6 Gray 65 69 7 71 75 Stringers 8 85 82 83 84 85 9 8359.6 FIGURE 12 SHEET OF CONCEPTUALMONITORING WELL DESIGN FOR DEEP MONITORING WELL : 3/2/1 1:44 SCALE: V: 1" = 7' DRAWN BY: B. DEMUA DESIGNED BY: L. ERNST ECKED BY: J:\Jobs\8359_Davis, City of\8359.6 North Davis Meadows CSA\Strater ENGR. INIT BY APPROVED
ENGINEER'S ESTIMATE North Davis Meadows Intermediate Aquifer Option Item No. Description Units Unit Cost Estimate Quantity Extended Cost Estimate 1 Project Mobilization/Demobilization LS $3, 1 $3, 2 Test Hole Drilling LF $3 5 $15, 3 Geophysical (E-Log) EA $2,5 1 $2,5 4 24-inch Borehole Drilling LF $6 5 $3, 5 12.75-inch O.D. Steel LF $6 418 $25,8 6 12.75-inch O.D. Well Screen LF $2 75 $15, 7 2-inch Dia. Sound Tube Pipe, Sch 4 B LF $1 185 $1,85 8 3-inch Dia. Fill Pipe, Sch 4 B LF $12 281 $3,372 9 Envelope & Bentonite Seals LF $55 23 $12,65 1 Annular Seal LF $4 27 $1,8 11 Test Pump Installation LS $8, 1 $8, 12 Well Development EA $12, 1 $12, 13 Well and Aquifer Testing (Test Pumping) HR $25 24 $6, 14 Plumbness & Alignment Test EA $3, 1 $3, 15 Site Cleanup and Records LS $3, 1 $3, 16 Well Disinfection EA $1, 1 $1, 17 Standby Time HR $15 4 $6 18 Pump Station LS $25, 1 $25, 19 Engineering LS $9, 1 $9, $519,852 Table 2
ENGINEER'S ESTIMATE North Davis Meadows Deep Aquifer Option Item No. Description Units Unit Cost Estimate Quantity Extended Cost Estimate 1 Project Mobilization/Demobilization LS $3, 1 $3, 2 3-inch O.D. Conductor Casing and Sanitary Seal LF $4 5 $2, 3 Test Hole Drilling LF $3 85 $25,5 4 Geophysical (E-Log) EA $2,5 1 $2,5 5 24-inch Borehole Drilling LF $6 85 $51, 6 12.75-inch O.D. Steel LF $6 783 $46,98 7 12.75-inch O.D. Well Screen LF $2 11 $22, 8 2-inch Dia. Sound Tube Pipe, Sch 4 B LF $1 185 $1,85 9 3-inch Dia. Fill Pipe, Sch 4 B LF $12 621 $7,452 1 Envelope LF $4 3 $12, 11 Annular Seal LF $4 6 $24, 12 Test Pump Installation LS $8, 1 $8, 13 Well Development EA $15, 1 $15, 14 Well and Aquifer Testing (Test Pumping) HR $25 24 $6, 15 Plumbness & Alignment Test EA $3, 1 $3, 16 Site Cleanup and Records LS $3, 1 $3, 17 Well Disinfection EA $1, 1 $1, 18 Standby Time HR $15 4 $6 19 Pump Station LS $25, 1 $25, 2 Engineering LS $1, 1 $1, $629,882 Table 3