MONTEREY PENINSULA WATER MANAGEMENT DISTRICT
GROUND WATER QUALITY MONITORING RESULTS
Carmel Valley Aquifer Sample Collection Date:  October 30 and 31, 2003
Seaside Basin Sample Collection Date: November 6 and December 16, 2003
Units are milligrams per liter unless otherwise noted.
Water Quality Constituent   Specific Conductance (micromhos/cm) Total Alkalinity   (as CACO3) pH (units) Chloride Sulfate Ammonia Nitrogen (as NH3) Nitrate Nitrogen (as NO3) Total Organic Carbon Calcium Sodium Magnesium Potassium Iron Manganese Orthophosphate  
Drinking Water Standard (1)   900 1600 2200 (2) NA NA 250 500 600 (2) 250 500 600 (2) NA 45 NA NA NA NA NA 0.3 0.05 NA  
Sampling Location River Mile                            
Carmel Valley Aquifer
16S/1W-14Jh (shal) 0.07 8020 204 6.6 2520 395 0.54  <1 3.0 113 1340 154 42 2.59 0.33 0.50
16S/1W-14Jf (inter) 0.07 22300 168 6.7 8020 1120 0.43  <2 1.5 219 4070 502 129 7.73 0.28 0.56
16S/1W-14Jg (deep) 0.07 1938[1] 244 7.7 419[2] 106 0.73  <2 3.1 78 245[3] 54 7.0 0.14 0.29 0.54
16S/1W-13Mc (shal) 0.31 751 258 7.3 91 <0.5 2.50  <2 5.0 56 64 25 5.7 1.84 1.89 2.56
16S/1W-13Mb (inter) 0.31 759 262 7.0 71 97 0.37  <2 2.7 75 46 23 4.1 2.53 0.61 0.35
16S/1W-13Md (deep) 0.31 871 234 7.5 98 82 0.57  <2 2.7 74 64 24 4.2 0.36 0.38 0.39
16S/1W-13Lb (shal) 0.65 1380 258 6.9 143 274 0.43  <2 3.4 140 101 46 5.1 2.24 0.39 0.46
16S/1W-13La (inter) 0.65 845 214 7.4 87 106 0.64  <2 3.0 84 55 25 4.6 2.15 0.75 0.62
16S/1W-13Lc (deep) 0.65 891 184 7.1 89 136 0.57  <2 2.8 72 86 19 3.4 1.88 0.68 0.78
16S/1E-17J4 3.85 351 104 6.8 19 45 <0.05  <2 1.9 32 23 11 2.9 0.17 <0.020  <0.03
16S/1E-17R2 3.86 992 196 6.8 87 200 <0.05  <2 4.3 105 72 23 3.6 4.66 0.22 0.76
16S/1E-23E4 6.53 1160 290 6.9 77 136 0.10  <2 2.7 109 94 26 2.5 1.34 0.25 0.32
16S/1E-23La 6.72 428 104 7.0 31 65 0.09  <2 1.6 40 27 13 3.5 1.11 0.19 0.09
16S/1E-24N5 8.02 467 130 7.0 31 59 <0.05 2 1.4 45 32 12 3.0  <0.10 0.11  <0.03
Seaside Basin
15S/1E-15N3 (shal)   318 66 7.2 45 17 0.10  <1 0.5 17 36 4.6 3.3 <0.05 <0.0005 0.03
15S/1E-15N2 (deep)   985 242 7.7 155 43 0.10  <1 0.5 75 103 14 4.8 0.13 0.05  <0.03
15S/1E-23Ca (shal) 917[4] 240 8.3 130 45 <0.05  <1 1.0 77 85 18 4.5 0.79 <0.0005  <0.03
15S/1E-23Cb (deep) 1243 296 8.1 170 116 0.53  <1 1.3 104 113 24 6.4 0.12 0.08  <0.03
15S/1E-15F1 (shal) 310 64 7.3 47 11 0.36 4 0.6 20 31 5 2.2 <0.05 <0.0005  <0.03
15S/1E-15F2 (deep) 972 242 7.8 149 43 0.14  <1 1.1 75 102 16 5.3 0.49 0.08 0.23
15S/1E-15K5 (shal) 307 68 7.7 50 8 0.06 2 0.6 20 35 6 1.8 3.27 0.13 0.88
15S/1E-15K4 (deep) 845 224 7.6 118 40 0.06  <1 1.7 64 93 12 4.6 1.13 0.06 0.32
15S/1E-11Pa (shal) 330 62 7.6 56 13 0.06  <1 0.5 22 33 4.2 3.7  <0.05 <0.0005  <0.03
15S/1E-11Pb (deep) 428 88 8.4 71 15 <0.05  <1 0.5 26 50 4.5 3.4  <0.05 <0.0005  <0.03
15S/1E-12Fa (shal) 340 62 8.2 58 13 <0.05 1 0.5 22 35 5.8 2.6  <0.05 <0.0005  <0.03
15S/1E-12Fc (deep) 374 74 8.2 63 13 <0.05  <1 0.6 22 40 5.9 2.6 0.41 0.11  <0.03
NOTES:
 (1)   Maximum contaminant levels are from California Domestic Water Quality and Monitoring Regulations, Title 22, 1977.
 (2)   The three values listed for certain constituents refer to the "recommended" level, the "upper" level, and "short-term use" level, respectively.
NOTES: 14Jf magnesium and potassium look too high, second year in a row
Change in sp. cond., sodium and chloride look scarey for 14Jf
Sodium really high, in 14Jh and 14Jf, although spec. cond. declined in both
Potassium and Orthophosphate higher in many wells relative to last year
PQL for Mn rose from 0.03 to 0.05 mg/l
PQL for Fe dropped from 0.1 to 0.05 mg/l (or were we just rounding off)
Sp. cond. In 23Ca is up from 798 mg/l in fall 2002.
[1]
Tom:
up from 1433 in Fall 2002
[2]
Tom:
up from 286 in 2002
[3]
Tom:
up from 142 in Fall 2002
[4]
Tom:
up from 798 in 2002