Consumer Confidence Report
PWS ID 66302588 LA FARGE WATERWORKS for 2006
Water System Information
If you would like to know more about the information contained in this report, please contact Wayne Carpenter & Phil Greenland at 608-625-2333.
|
Number of Contaminants Required to be tested
| Contaminant Group |
# of Contaminants |
| Inorganic Contaminants |
16 |
| Microbiological Contaminants |
1 |
| Radioactive Contaminants |
1 |
| Disinfection Byproducts |
1 |
| Unregulated Contaminants |
4 |
| Volitile Organic Contaminants |
21 |
| Synthetic Organic Contaminents including Pesticides & Herbicides |
23 |
|
Definition of Terms
| Term |
Definition |
| AL |
Action Level: The concentration of a contaminant which, if exceeded, triggers treatment or other requirements which a water system must follow. |
| MCL |
Maximum Contaminant Level: The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology. |
| MCLG |
Maximum Contaminant Level Goal: The level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs allow for a margin of safety. |
| MFL |
Million fibers per liter |
| mrem/year |
millirems per year (a measure of radiarion absorbed by the body) |
| NTU |
Nephelometric Tubidity Units |
| pCi/l |
picocuries per liter (a measure of radioactivity) |
| ppm |
parts per million, or milligrams per liter (mg/l) |
| ppb |
parts per Billion, or micrograms per liter (ug/l) |
| ppt |
parts per trillion, or nanograms per liter |
| ppq |
parts per quadrillion, or picograms per liter |
| TCR |
Total Coliform Rule |
| TT |
Treatment Technique: A required process intended to reduce the level of a contaminant in drinking water. |
|
Inorganic Contaminants
| Contaminant (units) |
MCL |
MCLG |
Level Found |
Range |
Sample Date (if prior to 2005) |
Violation |
Typical Source of Contaminant |
BARIUM
(ppm) |
2 |
2 |
.011 (average) |
.010-.011 |
|
NO |
Discharge of drilling wastes; Discharge from metal refineries; Erosion of natural deposits. |
COPPER
(ppm) |
AL=1.3 |
1.3 |
1.0000 |
.0260-4.4000 |
|
* |
Corrosion of household plumbing systems; Erosion of natural deposits; Leaching from wood preservatives. |
FLUORIDE
(ppm) |
4 |
4 |
.1 |
.1 |
|
NO |
Erosion of natural deposits; Water additive which promotes strong teeth; Discharge from fertilizer and aluminum factories. |
LEAD
(ppb) |
AL=15 |
0 |
7.90 |
nd-41.00 |
|
* |
Corrosion of household plumbing systems; Erosion of natural deposits |
NICKEL
(ppb) |
100 |
|
1.2500 (average) |
nd-2.5000 |
|
NO |
Nickel occurs naturally in soils, ground water and surface waters and is often used in electroplating, stainless steel and alloy products. |
SODIUM
(ppm) |
n/a |
n/a |
3.40 (average) |
3.00 - 3.80 |
|
NO |
n/a |
| * Systems exceeding a lead and/or copper level must take actions to reduce lead and/or copper in the drinking water. The lead and copper values represent the 90th percentile of all compliance samples collected. If you want information on the number of sites or the actions taken to reduce these levels, please contact your water supply operator. |
|
Radioactive Contaminants
| Contaminant (units) |
MCL |
MCLG |
Level Found |
Range |
Sample Date (if prior to 2005) |
Violation |
Typical Source of Contaminant |
| GROSS ALPHA, EXCL. R & U (pCi/l) |
15 |
0 |
1.7 |
.2 - 1.7 |
03/04/2002 |
NO |
Erosion of natural deposits |
|
Unregulated Contaminants
| Contaminant (units) |
MCL |
MCLG |
Level Found |
Range |
Sample Date (if prior to 2005) |
Violation |
Typical Source of Contaminant |
| BROMODICHLOROMETHANE (ppb) |
n/a |
n/a |
.69 |
.69 |
08/18/2004 |
NO |
n/a |
| CHLOROFORM (ppb) |
n/a |
n/a |
1.30 |
1.30 |
08/18/2004 |
NO |
n/a |
| DIBROMOCHLOROMETHANE (ppb) |
n/a |
n/a |
.34 |
.34 |
08/18/2004 |
NO |
n/a |
|
Volatile Organic Contaminants
| Contaminant (units) |
MCL |
MCLG |
Level Found |
Range |
Sample Date (if prior to 2004) |
Violation |
Typical Source of Contaminant |
| TTHM (ppb) |
80 |
0 |
2.3 |
2.3 |
|
NO |
By-product of drinking water chlorination |
|
