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Tap water quality report

Delta City of

EPA monitoring tested this supplier for 42 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

42
contaminants tested
11
detected
8,700
people served
1
health-based violations
Colorado rankingsLead in ColoradoPFAS in Colorado
Water source
SWP
Ownership
Local government
Counties served
Delta

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

1
health-based violations
11
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 1991-07-01 → 1991-07-31
Other Monitoring Resolved 2025-10-07
Other Monitoring Resolved 2025-10-07
Other Monitoring Resolved 2024-04-09
Other Monitoring Resolved 2024-04-09
MR Monitoring Resolved 1999-04-01 → 1999-04-30
MR Monitoring Resolved 1999-04-01 → 1999-04-30
MR Monitoring Resolved 1999-04-01 → 1999-04-30
MR Monitoring Resolved 1993-09-01 → 1993-09-30
MR Monitoring Resolved 1993-09-01 → 1993-09-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0083 µg/L 1/4 2024

Other contaminants detected

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 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
TTHM
34.5 µg/L 43%
of the EPA limit 80 µg/L
worst single sample: 40.8 µg/L
25/25 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
28.6 µg/L 48%
of the EPA limit 60 µg/L
worst single sample: 37.6 µg/L
25/25 SYR4 2013–2019
Lead
0.0060 mg/L 40%
of the EPA limit 0.0150 mg/L
 5/5 LCR 1999
Bromodichloromethane
3.7635 µg/L
No EPA limit set
worst single sample: 3.81 µg/L
4/4 SYR4 2016–2019
Chloroform
35.365 µg/L
No EPA limit set
worst single sample: 37.3 µg/L
4/4 SYR4 2016–2019
Dichloroacetic Acid
11.253 µg/L
No EPA limit set
worst single sample: 12.6 µg/L
4/4 SYR4 2016–2019
Trichloroacetic Acid
8.2535 µg/L
No EPA limit set
worst single sample: 8.6 µg/L
4/4 SYR4 2016–2019
Dibromoacetic Acid
0.3000 µg/L
No EPA limit set
 1/4 SYR4 2016–2019
Monochloroacetic Acid
1.59 µg/L
No EPA limit set
 1/4 SYR4 2016–2019
Lithium
10.3 µg/L
No EPA limit set
 1/4 UCMR-5 2024
31 contaminants tested, none detected
11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaBromoformDibromochloromethaneHfpo-DaMonobromoacetic AcidNetfosaaNfdhaNmefosaaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfuna

Utility contact

Contact
AKERMAN CASSELBERRY, ELYSE
Phone
970-874-7566
Email
[email protected]

Frequently asked questions about Delta City of

Is Delta City of tap water safe to drink?

EPA monitoring detected 11 contaminants in Delta City of's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Delta City of's water?

EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Lead, Bromodichloromethane, Chloroform, and others. The full list with the level and data source for each is above.

How many people does Delta City of serve?

Delta City of reports serving 8,700 people in Colorado, per its EPA record.

Has Delta City of had any water quality violations?

The EPA has 11 violations on file for Delta City of, of which 1 is health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

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.