F0/100
Kemmerer Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 3,348 residents · Wyoming
What's In Kemmerer's Tap Water?
31
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
10
Violations (last 5yr)
8
Unresolved
10
Health-Related
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2025 – September 30, 2025Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: January 1, 2025 – March 31, 2025Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: October 1, 2024 – December 31, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2024 – September 30, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2024 – September 30, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: April 1, 2024 – June 30, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: April 1, 2024 – June 30, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: April 1, 2024 – June 30, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issued
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: January 1, 2024 – March 31, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov
TIER 2Resolved
Exceeded the Maximum Contaminant Level (running average)
When: January 1, 2024 – March 31, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issued
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
KEMMERER-DIAMONDVILLE JPB
Population Served
3,348
Water Source
Surface Water
System ID
WY5600028
Frequently Asked Questions About Kemmerer Water
Is Kemmerer tap water safe to drink?
Kemmerer, Wyoming tap water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA maximum contaminant levels and 28 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Kemmerer's water?
Of the 31 contaminants tested in Kemmerer's water supply, the most notable include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Kemmerer have any water quality violations?
Yes, Kemmerer has 28 EPA violation(s) on record, with the most recent in 2025. Violation types include MCL, MR, TT. 21 of these are health-based violations, which are the most serious category.
Do I need a water filter in Kemmerer?
Kemmerer water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. 1 contaminant(s) exceed these stricter goals.
Where does Kemmerer's tap water come from?
Kemmerer's drinking water is sourced from surface water and supplied by KEMMERER-DIAMONDVILLE JPB. The system serves approximately 3,348 people. Surface water sources include rivers, lakes, and reservoirs.
How often is Kemmerer's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Kemmerer's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Kemmerer's water compare to other cities in Wyoming?
Kemmerer's water quality score of 0/100 earns a grade of F, which is considered failing. This is a concerning score that suggests significant water quality issues. Visit our Wyoming state page to see how all cities in the state compare.
What should I do if I'm concerned about Kemmerer's water quality?
If you have concerns about Kemmerer's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (KEMMERER-DIAMONDVILLE JPB) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.