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Diamondville, WY Tap Water Quality 2026

Water quality report for Diamondville, WY — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Diamondville's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Kemmerer-Diamondville Jpb PWSID: WY5600028 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 2.00 ppb, 13% of the action level and no violations are open. PFAS was sampled but not enough times for a compliance determination.

B

Diamondville earns a B for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: 2.00 ppb — 13% of the federal action level
PFAS sampled, too few results to judge
12 violations since 2015, 12 health-based
No violations currently open
Diamondville's lead level vs. all Wyoming community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 2.00 ppb — 13% of the federal action level
✓ Lower lead than 70% of Wyoming utilities
Population Served
520
~1440 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
12 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
13% of EPA action level
2.00 ppb
Action level: 15 ppb
The 90th-percentile lead result is 2.00 ppb, 13% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
TTHM MCL EXCEEDANCE 0.082 MG/L 0.080 mg/L 2025 Resolved
TTHM MCL EXCEEDANCE 0.086 MG/L 0.080 mg/L 2025 Resolved
TTHM MCL EXCEEDANCE 0.089 MG/L 0.080 mg/L 2024 Resolved
TTHM MCL EXCEEDANCE 0.09 MG/L 0.080 mg/L 2024 Resolved
TTHM MCL EXCEEDANCE 0.086 MG/L 0.080 mg/L 2024 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.064 MG/L 0.060 mg/L 2024 Resolved
TTHM MCL EXCEEDANCE 0.085 MG/L 0.080 mg/L 2024 Resolved
TTHM MCL EXCEEDANCE 0.092 MG/L 0.080 mg/L 2024 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.064 MG/L 0.060 mg/L 2024 Resolved
TTHM MCL EXCEEDANCE 0.094 MG/L 0.080 mg/L 2024 Resolved
TTHM MCL EXCEEDANCE 0.083 MG/L 0.080 mg/L 2015 Resolved
TTHM MCL EXCEEDANCE 0.084 MG/L 0.080 mg/L 2015 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

12 violations are on record since 2015, of which 12 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Kemmerer-Diamondville Jpb
PWSID WY5600028
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 520
Service connections 1,440
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Diamondville tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 2.00 ppb, 13% of the action level.
Does Diamondville water have PFAS? ▼
It was sampled, but no sampling point had enough results for a compliance determination.
Who supplies water to Diamondville? ▼
Kemmerer-Diamondville Jpb (PWSID WY5600028). Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2024-10-23. No significant deficiencies were recorded.

What Should Diamondville Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

Nearby Cities in Wyoming

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