|
TEST RESULTS |
|||||||||||||||||||||||||||
|
MICROBIOLOGICAL CONTAMINANTS |
|||||||||||||||||||||||||||
|
Contaminant |
Violation Y/N |
Level Detected |
Unit of Measurement |
MCLG |
MCL |
Major Sources in Drinking Water |
|||||||||||||||||||||
|
Total Coliform Bacteria
|
N |
1 positive sample in June, 2005 |
Present |
0 |
2 or more positive samples per month |
Naturally present in the environment |
|||||||||||||||||||||
|
Turbidity
|
N |
Highest yearly sample result: 0.19 |
NTU |
NA |
> 0.3NTU in > 5% of samples or any 1 sample >1NTU |
Soil runoff |
|||||||||||||||||||||
|
Lowest monthly % of samples meeting the turbidity limit: 100% |
|||||||||||||||||||||||||||
|
+ Turbidity is a measurement of the cloudiness of water. We monitor it because it is a good indicator of the effectiveness of our filtration system. |
|||||||||||||||||||||||||||
|
INORGANIC CONTAMINANTS |
|||||||||||||||||||||||||||
|
Contaminant
|
Violation Y/N |
Level Detected |
Unit of Measurement |
MCLG |
MCL |
Major Sources in Drinking Water |
|||||||||||||||||||||
|
Fluoride
|
N |
Average: 0.57 Range: 0 - 0.75 |
ppm |
4 |
4 |
Water additive which promotes strong teeth |
|||||||||||||||||||||
|
Nitrate [as Nitrogen]
|
N |
0.14 |
ppm |
10 |
10 |
Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits |
|||||||||||||||||||||
|
LEAD AND COPPER TAP MONITORING |
|||||||||||||||||||||||||||
|
Contaminant
|
Number of Sites Over Action Level |
90th Percentile Result |
Unit of Measurement |
Action Level |
Major Sources in Drinking Water |
||||||||||||||||||||||
|
Lead |
0 |
0.008 |
ppm |
0.015 |
Corrosion from household plumbing systems; erosion of natural deposits |
||||||||||||||||||||||
|
Copper |
0 |
0.57 |
ppm |
1.3 |
|||||||||||||||||||||||
|
+ Mountain Home Water Department is on a reduced monitoring schedule and required to sample once every three years for lead and copper at the customers' taps. Our last monitoring period was in 2004. Our next required monitoring period is the year 2007. |
|||||||||||||||||||||||||||
|
DISINFECTION BY-PRODUCT PRECURSORS |
|||||||||||||||||||||||||||
|
+ The percentage of Total Organic Carbon (TOE) removal was routinely monitored in 2005, and our water system met all TOC removal requirements set by USEPA. Total organic carbon (TOC) has no health effects. However, total organic carbon provides a medium for the formation of disinfection by-products. These by-products include trihalomethanes (THMs) and haloacetic acids (HAAs). |
|||||||||||||||||||||||||||
|
REGULATED DISINFECTANTS |
|||||||||||||||||||||||||||
|
Disinfectant
|
Violation Y/N |
Level Detected |
Unit of Measurement |
MRDLG |
MRDL |
Major Sources in Drinking Water |
|||||||||||||||||||||
|
Chlorine
|
N
|
Average: 1.1 Range: 0.11 - 2.0
|
ppm |
4 |
4 |
Water additive used to control microbes |
|||||||||||||||||||||
|
. VOLATILE ORGANIC CONTAMINANTS |
|||||||||||||||||||||||||||
|
Contaminant |
Violation Y/N |
Level Detected |
Unit of Measurement |
MCLG |
MCL |
Major Sources in Drinking Water |
|||||||||||||||||||||
|
HAAS [Haloacetic Acids]
|
N |
Highest running annual average: 49.7 Range: 22.1 - 64.3 |
ppb |
0 |
60 |
By-products of drinking water disinfection |
|||||||||||||||||||||
|
TTHM [Total Trihalomethanes] |
N |
||||||||||||||||||||||||||
|
Highest running annual average: 47.1 Range: 24.7 - 72.4 |
ppb |
NA |
80 |
||||||||||||||||||||||||
|
UNREGULATED CONTAMINANTS |
|||||||||||||||||||||||||||
|
Contaminant |
Level Detected |
Unit of Measurement |
MCLG |
Major Sources in Drinking Water |
|||||||||||||||||||||||
|
Chloroform |
21 |
ppb |
NA |
By-products of drinking water disinfection |
|||||||||||||||||||||||
|
Bromodich loromethane |
3.32 |
ppb |
0 |
||||||||||||||||||||||||
|
+ Unregulated contaminants are those for which EPA has not established drinking water standards. The purpose of unregulated contaminant monitoring is to assist EPA in determining the occurrence of unregulated contaminants in drinking water and whether future regulation is warranted. MCLs (Maximum Contaminant Levels) and MCLGs (Maximum Contaminant Level Goals) have not been established for all unregulated contaminants. |
|||||||||||||||||||||||||||