Santa Clara Valley Water District System # 4310027
Report for: Penitencia, Rinconada, Santa Teresa Water Treatment Plants 
Start: 12/1/00 End: 12/31/00


Primary Standards - Mandatory Health-Related Standards
PWTP  PWTP  RWTP  RWTP  STWTP STWTP
Units MCL DLR Influent Treated Influent Treated Influent Treated
Aluminum (Al) mg/L 1 0.05 NT NT 0.08 ND 0.08 ND
Antimony (Sb) mg/L 0.006 0.006 NT NT ND ND ND ND
Arsenic (As) mg/L 0.05 0.002 NT NT ND ND ND ND
Asbestos MFL 7 MFL 0.2 NT NT NT NT NT NT
Barium (Ba) mg/L 1 0.1 NT NT ND ND ND ND
Beryllium (Be) mg/L 0.004 0.001 NT NT ND ND ND ND
Cadmium (Cd) mg/L 0.005 0.001 NT NT ND ND ND ND
Chromium (Cr) mg/L 0.05 0.01 NT NT ND ND ND ND
Cyanide (CN) mg/L 0.2 0.1 NT NT NT NT NT NT
Fluoride (F) mg/L 2 0.1 NT NT 0.1 ND 0.1 ND
Lead (Pb) mg/L NS 0.005 NT NT ND ND ND ND
Mercury (Hg) mg/L 0.002 0.001 NT NT ND ND ND ND
Nickel (Ni) mg/L 0.1 0.01 NT NT ND ND ND ND
Nitrate (as NO3) mg/L 45 2 NT NT 3 4 ND ND
Nitrite (as N) mg/L 1 0.4 NT NT ND ND ND ND
Selenium (Se) mg/L 0.05 0.005 NT NT ND ND ND ND
Thallium (Tl) mg/L 0.002 0.001 NT NT ND ND ND ND

 
Bromodichloromethane mg/L NS 0.0005 NT NT NT 0.0070 NT 0.0170
Bromoform mg/L NS 0.0005 NT NT NT 0.0150 NT 0.0050
Chloroform mg/L NS 0.0005 NT NT NT 0.0020 NT 0.0070
Dibromochloromethane mg/L NS 0.0005 NT NT NT 0.0180 NT 0.0230
Total Trihalomethanes mg/L 0.1 0.0005 NT NT NT 0.0420 NT 0.0520

 
Heterotrophic Plate Count CFU/ml <500 NT NT 4073 26 755 2

Secondary Standards - Aesthetic Standards
PWTP  PWTP  RWTP  RWTP  STWTP STWTP
Units MCL DLR Influent Treated Influent Treated Influent Treated
Apparent Color Color Units 15 NT NT 44 <2.5 23 <2.5
Chloride (Cl) mg/L 250-500-600 NT NT 97 100 59 60
Conductivity umhos/cm 900-1600-2200 NT NT 488 541 392 410
Copper (Cu) mg/L 1 0.05 NT NT ND ND ND ND
Foaming Agents (MBAS) mg/L 0.5 NT NT NT NT NT NT
Iron (Fe) mg/L 0.3 0.1 NT NT 1.2 ND 0.2 ND
Manganese (Mn) mg/L 0.05 0.02 NT NT 10 ND 11 ND
pH (Units) pH units 6.5-8.5 NT NT 7.9 7.8 7.7 7.5
Silver (Ag) mg/L 0.1 0.01 NT NT ND ND ND ND
Sulfate (as SO4) mg/L 250-500-1500 0.5 NT NT 37.6 56.0 29.1 47.8
Total Dissolved Solids mg/L 500-1000-1500 NT NT 366 349 227 234
Turbidity NTU 5.0 NT NT 5.95 0.06 2.09 0.05
Zinc (Zn) mg/L 5 0.05 NT NT ND 0.28 ND 0.30

Additional Constituents Analyzed
PWTP  PWTP  RWTP  RWTP  STWTP STWTP
Units MCL DLR Influent Treated Influent Treated Influent Treated
Total Alkalinity mg/L NS NT NT 73 73 90 87
Ammonia Nitrogen (NH3) mg/L NS NT NT ND 0.11 ND 0.12
Bromide (Br) mg/L NS NT NT 0.25 ND 0.12 ND
Calcium (Ca) mg/L NS NT NT 19 19 20 20
Chlorate (ClO3) mg/L NS NT NT NT 0.1 NT 0.1
Hardness (as CaCO3) mg/L NS NT NT 104 104 107 108
Magnesium (Mg) mg/L NS NT NT 15 15 19 19
Phosphate (PO4) mg/L NS NT NT 0.17 0.68 0.16 0.81
Potassium (K) mg/L NS NT NT 3.0 3.2 1.7 1.5
Sodium (Na) mg/L NS NT NT 60 72 27 27
Temperature Degrees C NS NT NT 13 13 14 13
Total Organic Carbon mg/L NS NT NT 2.83 1.91 2.56 1.87
UV-254 ABS NS NT NT 0.097 0.028 0.078 0.038

MCL = Maximum Contaminant Level mg/L = milligrams per liter ND = Not Detected
DLR = Detection Limit for Reporting MFL = million fibers per liter NT = Not Tested
PWTP = Penitencia Water Treatment Plant CFU/ml = coliform forming units per milliliter NS = No Standard
RWTP = Rinconada Water Treatment Plant umhos/cm = microhms per centimeter
STWTP = Santa Teresa Water Treatment Plant NTU = nephelometric turbidity units
ABS = absorbance

Water District Laboratory Contact:
Jim Scott (408) 265-2607, extension 2119, or
jimscott@scvwd.dst.ca.us