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= = ® M M M = = = = = M M M = i = ® i <br />HISTORICAL SUMMARY OF MOM-. <br />SURFACE WATER <br />NORTH COUNTY SANITARY LAND: <br />S-2 <br />Sample Designation S-2 S-2 S-2 S-2 S-2 S-2 S-2 S-2 S-2 <br />Samoline Date 1/21/99 1/24/00 3/5101 12/02 12/17/02 2/18/04 1/10105 1/3/06 1/31111 <br />Monitorina and Field Parameters <br />NR <br />NR <br />14 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />66 <br />NR <br />NR <br />NR <br />NR <br />84.3 <br />General Water Ou_a_lit_v_ Paramefgrs <br />NR <br />34.9 <br />NR <br />NR <br />NR <br />NR <br />73 <br />NR <br />59.4 <br />Trature (°C) <br />14.7 <br />16.3 <br />15.2 <br />9.5 <br />12.9 <br />11.8 <br />14 <br />12.1 <br />NR <br />Chloride <br />23 <br />34.2 <br />131 <br />70 <br />25 <br />100 <br />41 <br />9 <br />23.8 <br />Nitrate Nitrogen <br />10.0049 <br />1.15 <br />155 <br />1.9 <br />0.18 <br />LI <br />10.23 <br />5 <br />0.3 <br />Total Dissolved Solids <br />191 <br />181 <br />1250 <br />530 <br />230 <br />750 <br />220 <br />230 <br />186 <br />Sulfate <br />18 <br />16 <br />155 <br />52 <br />13 <br />71 <br />15 <br />14 <br />9.62 <br />pH (std. units) <br />7.37 <br />6.92 <br />7.56 <br />7.37 <br />6.81 <br />8.13 <br />6.36 <br />6.81 <br />6.5 <br />Electrical Conductivity(umhos/cm) <br />246 <br />253 <br />766 <br />795 <br />396 <br />814 <br />197 <br />247 <br />254 <br />Turbidity (NTU) <br />58.5 <br />137.3 <br />>200 <br />105 <br />168.7 <br />>200 <br />74.8 <br />>200 <br />4.29 <br />Total Suspended Solids <br />14 <br />12 <br />139 <br />12 <br />92 <br />370 <br />54 <br />20 <br />NR <br />AlkalinityCO3, Total <br />36 <br />30.1 <br />274 <br />240 <br />39 <br />180 <br />71 <br />45 <br />66.5 <br />Alkalinity, Bicarbonate NR 30.1 274 240 39 180 71 45 81.3 <br />Alkalinity, Carbonate NR 10.808 10.808 110 <0.54 <5.0 6.0 <2.2 <10 <br />Alkalinity. Hvdroxidc NR NR NR NR NR NR NR _. _ NR 110 <br />Cyanide NR 0.00317 NR NR NR NR 10.025 NR NR <br />Sulfide NR 0.894 NR NR NR NR <0.10 NR NR <br />Total Organic Carbon <br />Hardness, Total <br />NR <br />NR <br />14 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />66 <br />NR <br />NR <br />NR <br />NR <br />84.3 <br />Chemical Oxygen Demand <br />NR <br />34.9 <br />NR <br />NR <br />NR <br />NR <br />73 <br />NR <br />59.4 <br />Dissolved Oxygen <br />NR <br />143 <br />NR <br />NR <br />1.46 <br />NR <br />6.3 <br />0.67 <br />9.68 <br />Metals <br />NR <br /><0.0006 <br />NR <br />NR <br />NR <br />NR <br /><0.020 <br />NR <br />NR <br />Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />20 <br />NR <br />19.9 <br />_Calcium, <br />Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />13 <br />NR <br />8.41 <br />_Magnesium, <br />Potassium, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />10 <br />NR <br />17.5 <br />Sodium, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />5.8 <br />NR <br />10.7 <br />Constituent_ of Concern Parameter <br />NR <br /><0.0014 <br />NR <br />NR <br />NR <br />NR <br /><0.080 <br />NR <br />_ <br />Oil and Grease <br />NR <br />L14 <br />NR <br />NR <br />NR <br />NR <br /><5.0 <br />NR <br />NR <br />Metals. <br />NR <br />0.989 <br />NR <br />NR <br />NR <br />NR <br />0.80 <br />NR <br />NR <br />Aluminum, Total NR 0.727 NR NR _ NR NR <0.20 NR NR <br />Antimony Total <br />NR <br /><00069 <br />NR <br />NR <br />NR <br />NR <br /><0.20 <br />NR <br />NR <br />Arsenic, Total <br />NR <br /><0.0096 <br />NR <br />NR <br />NR <br />NR <br />0.22 <br />NR <br />NR <br />Total <br />NR <br />0.0907 <br />NR <br />NR <br />NR <br />NR <br />10.20 <br />NR <br />NR <br />_Barium, <br />Beryllium, Total <br />NR <br /><0.0006 <br />NR <br />NR <br />NR <br />NR <br /><0.020 <br />NR <br />NR <br />Boron, Total <br />NR <br />0.11 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Cadmium, Total <br />NR <br /><0.0018 <br />NR <br />NR <br />NR <br />NR <br /><0.020 <br />NR <br />NR <br />Chromium, Total Dissolved <br />NR <br /><0.0028 <br />NR <br />NR <br />NR <br />NR <br /><0.020 <br />NR <br />NR <br />Chromium Hexavalent <br />NR <br /><0.0018 <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Cobalt, Total <br />NR <br /><0.0014 <br />NR <br />NR <br />NR <br />NR <br /><0.080 <br />NR <br />NR <br />Copper, Total <br />NR <br />0.00555 <br />NR <br />NR <br />NR <br />NR <br /><D.020 <br />NR <br />NR <br />Iron, Total <br />NR <br />0.989 <br />NR <br />NR <br />NR <br />NR <br />0.80 <br />NR <br />NR <br />Lead, Total <br />NR <br /><0.0099 <br />NR <br />NR <br />NR <br />NR <br /><0.20 <br />NR <br />NR <br />Manganese, Total <br />NR <br />0.129 <br />NR <br />NR <br />NR <br />NR <br />0.033 <br />NR <br />NR <br />Mercury, Total <br />NR <br /><0.005 <br />NR <br />NR <br />NR <br />NR <br /><0.0002 <br />NR <br />NR <br />Molybdenum, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Nickel, Total <br />NR <br /><0.0053 <br />NR <br />NR <br />NR <br />NR <br />0.15 <br />NR <br />NR <br />Selenium, Total <br />NR <br /><0.018 <br />NR <br />NR <br />NR <br />NR <br />0.23 <br />NR <br />NR <br />Silver, Total <br />NR <br /><0.0013 <br />NR <br />NR <br />NR <br />NR <br />0.061 <br />NR <br />NR <br />Strontium, Total <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />NR <br />Thallium, Total <br />NR <br /><0.012 <br />NR <br />NR <br />NR <br />NR <br />10.20 <br />NR <br />NR <br />Tin, Total <br />NR <br /><0. 1264 <br />NR <br />NR <br />NR <br />NR <br /><0.10 <br />NR <br />NR <br />Vanadium, Total <br />NR <br /><0.0024 <br />NR <br />NR <br />NR <br />NR <br /><0.080 <br />NR <br />NR <br />Zinc, Total <br />NR <br />0.016 <br />NR <br />NR <br />NR <br />NR <br /><0.080 <br />NR <br />NR <br />[ 11 pH meter was not functioning covectb <br />[2) These data appear to be anomalous aro <br />NR = Not Required NT = Not Tested -dry <br />