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u L r n 1 1 TABLE 2 Second Semester 2005 Leachate Field Measurements North County Recycling Center and Sanitary Landfill Groundwater levels were measured in monitoring wells G-1, G-31), G-4, G-5 and G-6 in both quarters this semester. Groundwater flow continues to be to the west by southwest (Figures 3 & 4). The calculated average linear groundwater flow velocity in the second quarter was 20.87 feet per year based on a hydraulic gradient of 0.00062 foot per foot. These calculations and hydrographs for each well can be found in Appendix G. North County RCSL 9 Public Works/Solid Waste 2nd Semester and Annual 2005 Groundwater Monitoring County of San Joaquin — January 24, 2006 Total Flow Flow Rate MONTH pH E.C. (pmhos/cm) gallons gal/day Modules 1 & 2 ......__. .......... ... _..... _........... __............ .......... July -.._._..-----.....__._......._.............._...................._........._.................._............... _............... _....... _. 7.05 ...................... _._......... ... ------ .._.............. _._...... ...__...... _............ 4010 ..... -...._-..._..._..._._...._........... ....._.._................._..-----...__._..._._._.._.._.._............._............... .............. .............. _..__..... .......... _............. -............................ 11,640 -... _.............................................. ..................... _....... 388 ........................ -...................... _... ...... August -- - 6.98 _...._......_.._......_....._......_..._ 4330 ............ ...... .._-_................................._.........- 7,250 -.—._.—...-----....__..._.._.._.........._..._...........__......_.............................._.._....._.... 242 September 6.78 4215 6,330 __........ 211 -........_........._........_..._......_...................._............._. _.._..-----.._..---...._..._... October ...._November..._.._.....6.34- ._....__....._...._...---- 6.91 .._...__...__..-..__..........._.................................._._.._.._._.__... ......._...._..._ 41_60 ................................_6,540 -�._..._..._.. 6,710_ .......__...__..._..__.......__......._............2.18_.__...._.._._...._._.__... 224 3980 .......... ..... .... ....... _._....._...._.......................... December _._....... __......._........--....--- 6.02 _...._..._........._...._..._..._......._...- 3640 ......_..._............_.._.__..................... 6,760 _.....--- ............._......_......._....._........... _._._..._.._..... 225 Module 3 "l, ........... .._.... .... _........ ................. ......... July ...._................_.._......... ...................._....._...... ...... ....... .--.--- .._........................ .................... 730 ............. ... .......... ..._.._.... ....... _............._._..._.._....... _ 20,620 .... ............ ............................. ................................... .. 687 August .........97 7.04 2310 8,390 280 September 6.00 2550 6,710 224 _..__.._._.__...._...._.._........_...................................................................................... October 6.35 ------- ---...- ..........................- 1695 ........_......._._.__._..._....._.............._..._............._................................................................I........._......_.... 6,090 203 ..._...._......_--.._.__._....__.........._..........._ November ..........................................................................._.........__..__._...._._..._........................._....._...........__._._..__...._....... 6.48 1870 _........_.._..._.........._......................................................- 5,680 ............................... 189 _..._.._...-.....__......--........_....__._._ December ............ _.._.._._._..................................................-._.._.....................................-..._....._.........__............................................................................__....._.._........._........_ ....................._........._..........._........_.._........__........_...._................................._._..._...._......._...._._....--...._.._........__._......_._... 6.22 2200 7,860 ......._.._......_............_......................................................................... ......._.._........... ......_.._....._._........................... . 262 ........ ....... ............. ............ ....................... Module 4 ..........._............... -............ ._.............. --- ................. ........................... ............................................ ._............ _............................... ........... .............................._........._..... ....... ---._........ _..__... _.............. .......... ...................... July -............... 7.18 ._...................... ........... ........ ... ._......... _.._..._........_..................... _._ 2610 ................ _.._........._........ ... ..-.._.................. ._._........................... 29,866 ............................. ....._................................ 995 g-......_..._.._....................._.._......._......................................_........._..._......._.................................._..........._....._........_....._.__...._.- August -- ---._...__............__....._.........__....._...__ 7.02 2730 ........................__...-_.._.._.._.........._..._...................................._._.......-- ......__......__........_......_............................................................................................................. 40,642 .... - - - --... -................_.............................-........................................................ 1354 September 5.96 2200 23,026 768 _...__.._..._...._..............__.._..._...._....._.-........._.............. October _.....^... 6.05 ----.....--._._........................................................................_........- 2425 -- ...._.._.....----.._.........._....._.........._......._.._.............................._.....__........... 15,015 501 -.._........................._._...I...__.......I.._._.... November 5.92 _.._..-_-..........-._..........,..._....._...._....__.......................—..._._...__.._...._.._._._._.__........._..................... 2640 12,869 ......_............ 429 __....._. ......... _..__................................._...................._.._..........._.......__....--._._....._..._....--....._..._................_.................._................._.._....._........................_._......._........................................__...................._.._..................._. December 6.191420 17,429 575 Groundwater levels were measured in monitoring wells G-1, G-31), G-4, G-5 and G-6 in both quarters this semester. Groundwater flow continues to be to the west by southwest (Figures 3 & 4). The calculated average linear groundwater flow velocity in the second quarter was 20.87 feet per year based on a hydraulic gradient of 0.00062 foot per foot. These calculations and hydrographs for each well can be found in Appendix G. North County RCSL 9 Public Works/Solid Waste 2nd Semester and Annual 2005 Groundwater Monitoring County of San Joaquin — January 24, 2006