Newport Comprehensive Land Use Plan - Existing Conditions | Page 184
Newport Comprehensive Land Use Plan
Microbiological
Contaminants
Synthetic
Organic
Contaminants
Including
Pesticides and
Herbicides
MCLG
MCLG
Detected
Level
Detected
Level
Range
Range
Major Sources
Major Sources
2
0
0.10
ND - 0.10
Runoff from
herbicide used on
row crops
No
ppt
200
0
100
ND - 100
Leaching from linings
of water storage
tanks and distribution
lines
No
2014
ppb
6
0
2
ND - 2
Discharge from
rubber and chemical
factories
No
Simazine (5)
2014
ppb
4
4
0.10
ND - 0.10
Herbicide runoff
No
Disinfection
By-products
Period
Unit
MCL
MCLG
Detected
Level
Range
Major Sources
SDWA
Violation
Total Trihalomethanes (TTHM)
(4)
2014
ppb
80
n/a
72.0
19.4 127.7
By-product of
drinking water
chlorination
No
Haloacetic
Acids (HAA5)
2014
ppb
60
n/a
19.4
2.3 - 32.1
By-product of
drinking water
chlorination
No
Chlorite
2014
ppm
1.0
0.800
0.603
<0.010 0.970
By-product of
drinking water
disinfection
No
Disinfectants
Period
Unit
MRDL
MRDL
G
Detected
Level
Range
Major Sources
SDWA
Violation
Chlorine
2014
ppm
4.0
4.0
1.98
RAA =
0.93
0.05-1.98
Water additive used
to control microbes
No
Chlorine Dioxide
2014
ppb
800
800
690
ND-690
Water additive used
to control microbes
No
Unregulated
Contaminant
Monitoring
Period
Unit
MCL
MCLG
Detected
Level
Range
Major Sources
SDWA
Violation
Sodium
2014
ppm
n/a
n/a
61.6
24.7-61.6
Naturally occurring;
road runoff;
contained in water
treatment chemicals;
EPA regulations
require us to monitor
this contaminant
while EPA considers
setting a limit on it.
No
Period
Period
Unit
Unit
MCL
MCL
Alachlor (5)
2014
ppb
Benzo(A)Pyrene
(5)
2014
Di(2ethylhexyl)phtha
late (5)
Page 13-6
SMCL
SDWA
Violation
SDWA
Violation
Draft Existing Conditions (March 2016)