The accompanying table lists additional regulated (secondary) and non-regulated parameters that were detected in the finished water during 2022.
No adverse health effects are generally associated with the secondary drinking water contaminants. At considerably higher concentrations than the Maximum Contaminant Levels (MCLs), health implications may exist as well as aesthetic degradation.
Additional Regulated (Secondary) and Non-Regulated Parameters
| Additional Parameters |
MCL |
Maximum Value |
Range of Results |
| Aluminum (ug/L) |
200 |
39 |
25-39 |
| Chloride (mg/L) |
250 |
19.0 |
12.3-19.0 |
| Color (CU) |
15 |
10 |
ND-10 |
| Copper (ug/L) |
1000 |
1.1 |
ND-1.1 |
| Iron (ug/L) |
300 |
270 |
ND-270 |
| Manganese (ug/L) |
50 |
14 |
4-14 |
| Metolachlor (mg/L) |
NR |
73 |
ND-73 |
| pH (units) |
6.5-8.5 |
8.2 |
6.5-8.2 |
| Odor (TON) |
3 |
4 |
1-4 |
| Sulfate (mg/L) |
250 |
130 |
75-130 |
| Total alkalinity (mg/L as CaCO3) |
NR |
88.5 |
19.5-88.5 |
| Total dissolved solid (mg/L) |
500 |
261 |
150-261 |
| Total hardness (mg/L as CaCO3) |
NR |
195* |
92-195 |
| Zinc (ug/L) |
5000 |
160 |
12-160 |
* To calculate hardness in grains per gallon, divide by 17.1
Table Key & Definitions
- CU: Color Units
- ND: Not Detected
- NR: Not Regulated
- MCL: Maximum Contaminant Level
- ug/L: micrograms per liter or parts per billion
- mg/L: milligrams per liter or parts per million
Other contaminants that were tested for but not detected include: nitrite; chromium; cyanide; lead; selenium; antimony; beryllium; thalium; silver; foaming agents; 1,2,4-trichlorobenzene; cis-1,2-dichloroethylene; xylenes; dichloromethane; o-dichlorobenzene; para-dichlorobenzene; vinyl chloride; 1,1-dichloroethylene; trans-1,2-dichloroethylene; 1,2-dichloroethane; 1,1,1-trichloroethane; carbon tetrachloride; 1,2-dichloropropane; trichloroethylene; 1,1,2-trichloroethane; tetrachloroethylene; monochlorobenzene; benzene; toluene; ethylbenzene; styrene; endrin; lindane; methoxychlor; toxaphene; dalapon; diquat; endothall, glyphosate; di(2-ethylhexyl)adipate; oxamyl; simazine; di(2-ethylhexyl)phthalate; picloram; dinoseb; hexachlorocyclopentadinene; carbofuran; atrazine; alachlor; 2,3,7,8-TCDD (dioxin); heptachlor; heptachlor epoxide; 2,4-D; 2,4,5-TP (silvex); hexachlorobenzene; benzo(a)pyrene; pentachlorophenol; PCBs; dibromochloropropane; ethylene dibromide (EDB); chlordane; dieldrin; dicamba; 1,1,1,2-tetrachloroethane; 1,1,2,2-tetrachloroethane; 1,1-dichloroethane; 1,1-dichloropropene; 1,2,3-trichloropropane; 1,3-dichlorobenzene; 1,3-dichloropropane; 2,2-dichloropropane; 2-chlorotoluene; 4-chlorotoluene; bromobenzene; bromomethane; chloroethane; chloromethane; dibromomethane; dichlorodifluoromethane; methyl-tert-butyl ether, trichlorofluoromethane; aldrin; metribuzin; propachlor; 3-hydroxycarbofuran; aldicarb; aldicarb sulfone; aldicarb sulfoxide; carbaryl, methomyl; 2,4,6-trichlorophenol; 2,4-dinitrotoluene; 2-chlorophenol; 4,6-dinitro-2-methylphenol; butylbenzylphthalate; diethylphthalate; dimethylphthalate; di-n-butylphthalate; di-n-octylphthalate; isophorone; phenol