|
Contaminant |
MCL/
MCLG |
Detected
Level |
Violation |
Sources
in
Drinking Water |
Health
Effects |
|
Lead(
ppb)
June-Sept. 2006 |
AL
= 15/ None |
90th
per-
centile value <0.002
0 sites exceeded the AL |
NO |
Corrosion
of household plumbing systems, erosion of natural deposits. |
Infants and
children who drink water containing lead in excess of the action
level could experience delays in their physical or mental development.
Children could show slight deficits in attention span and learning
abilities. Adults who drink this water over many years could develop
kidney problems or high blood pressure. |
|
Copper
(ppm)
June-Sept. 2006 |
AL
= 1.3/ 1.3 |
90th
percentile value 0.121
0 sites exceeded the AL |
NO |
Corrosion
of household plumbing systems; erosion of natural deposits; leaching
from wood preservatives. |
Copper is
an essential nutrient, but some people who drink water containing
copper in excess of the action level over a relatively short amount
of time could experience gastrointestinal distress. Some people
who drink water containing copper in excess of the action level
over many years could suffer liver or kidney damage. |
|
Nitrate
(ppm)
Measured as Nitrogen2006 |
10/
10 |
1.11 |
NO |
Runoff
from fertilizer use; leaching from septic tanks, sewage; erosion
of natural deposits. |
Infants
below the age of six months who drink water containing nitrate
in excess of the MCL could become seriously ill and, if untreated,
may die. Symptoms include shortness of breath and Blue-Baby Syndrome. |
|
Gross
Alpha Emitters
(pCi/l)2006 |
15/
None |
11.32
Based on 4 quarter average |
NO
New testing protocol was followed |
Erosion
of natural deposits |
Certain
minerals are radioactive and may emit a form of radiation known
as alpha radiation. Some people who drink water containing alpha
emitters in excess of the MCL over many years may have an increased
risk of getting cancer. |
|
Barium
(ppm) 2006 |
2.0/2.0 |
0.05 |
NO |
Discharge
of drilling wastes; discharge from metal refineries; erosion of
natural deposits. |
Some people
who drink water containing barium in excess of the MCL over many
years could experience an increase in their blood pressure. |
