|
Contaminant |
Violation
Y/N
|
Highest
No. of dections
|
No.
of months in violation |
Unit
Measurement
|
MCL in CCR units
|
PHG
|
MCLG
|
Likely
Source of Contamination
|
|
Total Coliform Bacteria
|
Y |
2
|
1 |
0
|
For
systems that collect less than 40 samples per month,
no more than 1 positive sample
|
0
|
0
|
Naturally
present in the environment |
|
Fecal
coliform and E.coli |
N
|
0
|
0
|
0
|
a
routine sample and repeat sample are total coliform
positive, and one is also fecal coliform or E.
coli positive
|
0
|
0
|
Human and animal fecal waste |
|
Turbidity
|
N
|
0.2 |
0.1/0.4
|
TT
|
5
|
N/A
|
N/A
|
Soil
runoff' |
RADIOACTIVE CONTAMINANTS
| Contaminant |
Violation
Y/N
|
Level
Detected
|
Range |
Unit
Measurement
|
MCL in CCR units
|
PHG
|
MCLG
or MRDLG |
Likely
Source of Contamination
|
| Gross
Alpha |
N
|
2.3
|
N/D/5.6
|
pCi/L
|
15
|
N/A
|
N/A
|
Erosion
of natural deposits |
|
Uranium
|
N
|
2.2 |
N/D/7.0 |
pCi/L
|
20
|
0.43 |
N/A
|
Erosion
of natural deposits |
|
Radon
|
N
|
269 |
251/578
|
pCi/L
|
N/A
|
N/A
|
0*
|
Naturally occurring in soil |
INORGANIC CONTAMINANTS
|
Contaminant |
Violation
Y/N
|
Level
Detected
|
Range |
Unit
Measurement
|
MCL in CCR units
|
PHG
|
MCLG
or MRDLG |
Likely
Source of Contamination
|
| Arsenic
|
N
|
1.0
|
N/D/4.1
|
ppb
|
10
|
0.004 |
0.004
|
Erosion
of natural deposits; runoff from orchards; glass and
electronics production wastes
|
|
Fluoride
|
N
|
0.46
|
0.26/1.0
|
ppm
|
2.0
|
1
|
1
|
Erosion
of natural deposits; water additive which promotes strong
teeth; discharge from fertilizer and aluminum factories |
|
Nitrate
(as No3)
|
N
|
11 |
9/23 |
ppm
|
45
|
45
|
45 |
Runoff
and leaching from fertilizer use; leaching from septic
tanks and sewage; erosion of natural deposits
|
|
Nitrate
+ Nitrite as Nitrogen
|
N
|
2686
|
1800/6800 |
ppm
|
10,000
|
10,000
|
10,000
|
Runoff
and leaching from fertilizer use; leaching from septic
tanks and sewage; erosion of natural deposits
|
DISTRIBUTION SYSTEM - DISINFECTION BYPRODUCTS,
DISINFECTANT RESIDUALS
|
Contaminant |
Violation
Y/N
|
Level
Detected
|
Range |
Unit
Measurement
|
MCL in CCR units
|
PHG
|
MCLG
|
Likely
Source of Contamination
|
|
TTHMs
- Total Trihalomethanes |
N
|
65 |
50.9/72.5
|
ppb
|
80
|
N/A
|
N/A
|
Byproduct
of drinking water chlorination |
|
Halocetic
Acids |
N
|
8.2 |
1.3/8.5 |
ppb
|
60
|
N/A
|
N/A |
Byproduct
of drinking water disinfection
|
|
Chlorine
|
N
|
0.41
|
0.36/0.47 |
ppm
|
4.0
|
4
|
4
|
Drinking
water disinfection added for treatment |
SECONDARY STANDARDS
| Constituent |
Violation
Y/N
|
Level
Detected
|
Range |
Unit
Measurement
|
MCL in CCR units
|
PHG
|
MCLG
or MLDRG |
Likely
Source of Contamination
|
|
Chloride
|
N
|
21
|
4.5/53 |
ppm
|
500
|
N/A
|
N/A
|
Runoff/leaching
from natural deposits; seawater influence
|
| Barium |
N |
0.4 |
ND/130 |
ppb |
1000 |
N/A |
N/A |
Discharge of oil drilling wastes and from metal
refineries, erosion of natural deposits |
|
Iron
|
N
|
0.5
|
ND/160
|
ppb
|
300
|
N/A
|
N/A
|
Leaching
from natural deposits, industrial wastes
|
|
Odor
|
N
|
1
|
1/1
|
TON
|
3
|
N/A
|
N/A
|
Naturally
occurring organic materials |
|
pH
|
N
|
7.0 |
6.9/7.7
|
STD
unit |
6.5/8.5
|
N/A
|
N/A
|
Comparison
of “Alkalinity” & “Acidity” of water
|
|
Specific
Conductance |
N
|
482 |
320/2560
|
US
|
1600
|
N/A
|
N/A
|
Substances
that form ions when in water; seawater influence
|
|
Sulfate
|
N
|
126 |
20/120 |
ppm
|
500
|
N/A
|
N/A
|
Runoff, leaching from natural
deposits; industrial waste |
|
Total
Dissolved Solids (TDS) |
N
|
307
|
210/610
|
ppm
|
1000
|
N/A
|
N/A
|
Runoff,
leaching from natural deposits |
|
Foaming
Agents (MBAS) |
N
|
0.3 |
N/D/0.020 |
ppb
|
500
|
N/A
|
N/A
|
Municipal
and industrial waste discharges |
ADDITIONAL CONSTITUENTS ANALYZED
| Constituent |
Violation
Y/N
|
Level
Detected
|
Range |
Unit
Measurement
|
MCL in CCR units
|
PHG
|
MCLG
or MRDLG |
Likely
Source of Contamination
|
| Calcium
|
N
|
1 | |
