Is Trinidad, CO Tap Water Safe? Quality & Contaminants

What was found in Trinidad'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
Fluoride	1200 µg/L 30% of the EPA limit 4000 µg/L	1/10	SYR4
Gross Beta Particle Activity	144 pCi/L No EPA limit set	1/10	SYR4
TTHM	86.4 µg/L 108% of the EPA limit, in the worst sample — 80 µg/L	10/10	SYR4
Chloroform	50 µg/L No EPA limit set	10/10	SYR4
Barium	43 µg/L 2.2% of the EPA limit 2000 µg/L	1/10	SYR4
Total Haloacetic Acids (HAA5)	39.6 µg/L 66% of the EPA limit 60 µg/L	10/10	SYR4
Nitrate	26 µg/L 0.3% of the EPA limit 10000 µg/L	1/10	SYR4
Bromodichloromethane	21.4 µg/L No EPA limit set	10/10	SYR4
Dibromochloromethane	21.4 µg/L No EPA limit set	10/10	SYR4
Dichloroacetic Acid	20.6 µg/L No EPA limit set	10/10	SYR4
Trichloroacetic Acid	14.3 µg/L No EPA limit set	10/10	SYR4
Monobromoacetic Acid	10.8 µg/L No EPA limit set	2/10	SYR4
Bromoform	7.4 µg/L No EPA limit set	1/10	SYR4
Monochloroacetic Acid	4.66 µg/L No EPA limit set	6/10	SYR4
Combined Uranium	0.8900 µg/L 3% of the EPA limit 30 µg/L	1/10	SYR4
Combined Radium (-226 And -228)	0.8000 pCi/L 16% of the EPA limit 5 pCi/L	1/10	SYR4
Mercury	0.1200 µg/L 6% of the EPA limit 2 µg/L	1/10	SYR4
Lead	0.0020 mg/L 13% of the EPA limit 0.0150 mg/L	10/10	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 Trinidad

Supplier	Population served
TRINIDAD CITY OF	11,400
EL MORO HOEHNE PIPELINE ASSOC	655
SANTA FE TRAIL RANCH MD	360
SUNFLOWER VALLEY PIPELINE ASSN	312
GREETVILLE CARBONDALE WATER	210
TRINIDAD LAKE RANCHES POA	200
COKEDALE TOWN OF	120
STARKVILLE TOWN OF	62
PINON WSD	50
CHICOSA WATER USERS ASSOCIATION	40

Frequently asked questions about Trinidad tap water

Is Trinidad tap water safe to drink?

EPA testing detected 18 contaminants in the water serving Trinidad. 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 Trinidad?

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

What contaminants are in Trinidad's water?

The contaminants EPA monitoring detected in Trinidad include Fluoride, Gross Beta Particle Activity, TTHM, Chloroform, Barium. 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.