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The City of Apple Valley operates 19 wells that range in depths from 487 to 1,127 feet. Drinking water is drawn from the Prairie du Chien-Jordan and Jordan groundwater aquifers. If the City needs additional water in an emergency, water can also be drawn from the Mt. Simon aquifer.
The City's water treatment plant is designed to remove iron and manganese. Chlorine and potassium permanganate are added to oxidize the iron and manganese so they can be filtered from the water. After filtration, additional chlorine and fluoride are added before being stored in reservoirs.
The EPA has established two standards for additional contaminants in tap water:
MCL: Maximum Contaminant Level - The maximum allowable level of a certain contaminant
MCLG: Maximum Contaminant Level GOAL - The level where studies have found ZERO HEALTH RISKS, aka the "Health Limit"
Certain contaminants that absorb easily through your skin have been highlighted in orange. For those items, a Point of Entry (POE) system is recommended to treat all the water for your home/business.
2009 Apple Valley Water Report
2005 Apple Valley Water Report
2003 Apple Valley Water Report
2002 Apple Valley Water Report
| Contaminant | Levels Found |
Health Limit |
Potential Effect | Treatment |
|---|---|---|---|---|
| Alpha Emitters | 9.7 - 10.4 | 0pCi/L | Increased risk of cancer | Reverse Osmosis, Pureoflow |
| Bromodichloromethane | 3.03 - 6.6 | 0ppb | Increased risk of cancer, damage to liver, kidneys, and nervous system | Reverse Osmosis, Pureoflow, DMT Systems, Carbon Filters |
| Bromoform | 0.49 - 1.6 | 0ppb | Increased risk of cancer | Reverse Osmosis, Pureoflow, DMT Systems, Carbon Filters |
| Chloroform | 3.41 - 7.0 | 5.7ppb | Nervous system depression, increase in kidney and liver tumors | Reverse Osmosis, Pureoflow, DMT Systems, Carbon Filters |
| Combined Radium | 3.6 - 4.2 | 0pCi/L | Increased risk of cancer | Reverse Osmosis, Pureoflow |
| Dichloroacetic acid | 1.54 - 2.2 | 0ppb | Irritant and corrosive to the eyes, skin and respiratory tract | Reverse Osmosis, Pureoflow, DMT Systems, Carbon Filters |
| Haloacetic Acids | 2.8 - 4.4 | 0ppb | Increased risk of cancer | Reverse Osmosis, Pureoflow, DMT Systems, Carbon Filters |
| Radon | 202 | 1.5pCi/L | Increased risk of lung cancer | Reverse Osmosis, Pureoflow |
| Total Coliform Bacteria | 3% | 0% | Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present | Pureoflow, Ultrafiltration |
| Total Trihalomethanes | 10.5 - 20.3 | 0ppb | Liver, kidney or central nervous system problems; increased risk of cancer | Reverse Osmosis, Pureoflow, DMT Systems, Carbon Filters |
| Contaminant | Levels Found |
Health Limit |
Potential Effect | Treatment |
|---|---|---|---|---|
| Barium | 0.15 | 2ppm | Increase in blood pressure | Reverse Osmosis, Pureoflow |
| Chlorine | 0.41 - 1.0 | 4.0ppm | Eye/nose irritation; stomach discomfort | Reverse Osmosis, Pureoflow, DMT Systems, Carbon Filters |
| Fluoride | 0.82 - 1.3 | 4.0ppm | Bone disease (pain and tenderness of the bones); children may get mottled teeth | Reverse Osmosis, Pureoflow |
| Hardness | 17 - 19gpg | NA | Increased energy consumption, damage to plumbing, appliances, fixtures, clothing, and glassware | Pureoflow, DMT Systems, Water Softener |
| Iron | 0.05 - 0.7ppm | NA | Increased energy consumption, damage to plumbing, appliances, fixtures, clothing | Pureoflow, DMT Systems |
| Monochloroacetic acid | 1.74 - 4.4 | 70ppm | Increased risk of cancer | Reverse Osmosis, Pureoflow, DMT Systems, Carbon Filters |
| Nitrate | 0.13 - 0.16 | 10ppm | Infants below the age of six months could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and "blue baby" syndrome. | Reverse Osmosis, Pureoflow |
| Sodium | 6.5ppm | NA | Hypertension | Pureoflow, DMT Systems |
| Sulfate | 31.5ppm | NA | Catharsis, Dehydration from diarrhoea | Pureoflow, DMT Systems |
| Trichloroacetic acid | 1.21 - 1.9 | 20ppm | Increased risk of cancer | Reverse Osmosis, Pureoflow, DMT Systems, Carbon Filters |
This information was compiled from Apple Valley's water treatment reports, the Environmental Protection Agency(EPA), Minnesota Department of Health(DOH), World Health Organization(WHO), and Environmental Working Group(EWG).
