Is Monument, CO Tap Water Safe? Quality & Contaminants

What was found in Monument's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

Contaminant	Level vs EPA limit	Suppliers	Source
Nitrate	3300 µg/L 33% of the EPA limit 10000 µg/L	4/6	SYR4
Chloroform	2500 µg/L No EPA limit set	4/6	SYR4
Nitrate-Nitrite	2300 µg/L 23% of the EPA limit 10000 µg/L	3/6	SYR4
Bromodichloromethane	2000 µg/L No EPA limit set	3/6	SYR4
Fluoride	1770 µg/L 44% of the EPA limit 4000 µg/L	5/6	SYR4
Dibromochloromethane	700 µg/L No EPA limit set	4/6	SYR4
Barium	352 µg/L 18% of the EPA limit 2000 µg/L	5/6	SYR4
TTHM	107.2 µg/L 134% of the EPA limit, in the worst sample — 80 µg/L	5/6	SYR4
Total Haloacetic Acids (HAA5)	48.06 µg/L 80% of the EPA limit 60 µg/L	3/6	SYR4
Lithium	36 µg/L No EPA limit set	3/6	UCMR-5
Selenium	27 µg/L 54% of the EPA limit 50 µg/L	4/6	SYR4
Dichloroacetic Acid	24.4 µg/L No EPA limit set	2/6	SYR4
Trichloroacetic Acid	16.21 µg/L No EPA limit set	1/6	SYR4
Bromate	12 µg/L 120% of the EPA limit, in the worst sample — 10 µg/L	1/6	SYR4
Gross Alpha, Excl. Radon And U	8.5 pCi/L 57% of the EPA limit 15 pCi/L	5/6	SYR4
Combined Radium (-226 And -228)	7.4 pCi/L 148% of the EPA limit, in the worst sample — 5 pCi/L	5/6	SYR4
Dibromoacetic Acid	4.2 µg/L No EPA limit set	2/6	SYR4
Arsenic	4 µg/L 40% of the EPA limit 10 µg/L	3/6	SYR4
Monochloroacetic Acid	3.94 µg/L No EPA limit set	1/6	SYR4
Combined Uranium	2.8 µg/L 9.3% of the EPA limit 30 µg/L	3/6	SYR4
Xylenes, Total	2.8 µg/L 0% of the EPA limit 10000 µg/L	1/6	SYR4
Bromoform	2.3 µg/L No EPA limit set	4/6	SYR4
Chromium	2 µg/L 2% of the EPA limit 100 µg/L	4/6	SYR4
Monobromoacetic Acid	1.8 µg/L No EPA limit set	1/6	SYR4
Dalapon	1.2 µg/L 0.6% of the EPA limit 200 µg/L	1/6	SYR4
Mercury	0.2000 µg/L 10% of the EPA limit 2 µg/L	1/6	SYR4
PFBS	0.0033 µg/L No EPA limit set	1/6	UCMR-5
Lead	0.0020 mg/L 13% of the EPA limit 0.0150 mg/L	5/6	LCR

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Monument

Supplier	Population served
WOODMOOR WSD	18,031
MONUMENT TOWN OF	5,740
TRIVIEW MD	5,737
WALDEN WSD	1,500
MONUMENT MEADOW VILLAGE MHP	250
PIONEER LOOKOUT WD	120

Frequently asked questions about Monument tap water

Is Monument tap water safe to drink?

EPA testing detected 28 contaminants in the water serving Monument. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Monument?

6 public water suppliers report drinking-water monitoring for Monument, Colorado to the EPA. Each is listed above with its population served.

What contaminants are in Monument's water?

The contaminants EPA monitoring detected in Monument include Nitrate, Chloroform, Nitrate-Nitrite, Bromodichloromethane, Fluoride. The full list, with the highest level found and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.