Public water system record
Chamois PWS
Serves Chamois, Osage County, MO · 396 people served
Federal records show 2 health-based violations and 6 monitoring/reporting issues for Chamois PWS in the last ten years. The most serious issue in this window was a resolved Stage 1 Disinfection Byproducts Rule violation.
System profile
- Health-based violations, last 10 years
- 2
- Resolved
- 2
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 6
Key facts
- Chamois PWS draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: compliance order (no penalty) by Missouri, September 2020.
- Record on file since 1994, with 2 health-based violations before October 20, 2016.
- Lead pipe inventory: 0 lead and 508 unknown out of 508 service lines.
Check whether Chamois PWS serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
|
210 | Nov 23, 2022 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 2, 2020 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2023 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2019 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2017 | Resolved |
Full record since 1994
EPA's records for Chamois PWS go back to 1994. Before October 20, 2016 they list 2 health-based violations (2 resolved) and 26 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 22 |
| 2000s | 2 | 3 |
| 2010 to October 19, 2016 | 0 | 1 |
| October 20, 2016 to 2019 | 0 | 2 |
| 2020s | 2 | 4 |
Most recent health-based violation before October 20, 2016: Total Coliform, began November 2004, Resolved.
Show all 2 health-based violations before October 20, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2004 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2004 | Resolved |
Enforcement actions
Missouri regulators took 1 formal enforcement action against Chamois PWS in 2020. The most recent was a compliance order (no penalty) in September 2020.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 8, 2020 | Missouri | Compliance order (no penalty) | 6 violations (2 health-based): Groundwater Rule, Stage 1 Disinfection Byproducts Rule, Revised Total Coliform Rule, Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs) |
What the violations mean
Stage 1 Disinfection Byproducts Rule
1 incidentThe system did not meet a treatment requirement of the Stage 1 Disinfectants and Disinfection Byproducts Rule
Byproducts form when disinfectants react with natural material in water. Long-term exposure above federal limits may increase cancer risk
Groundwater Rule
1 incidentThe system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Chamois PWS draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
Annual water quality report
Chamois PWS must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Chamois PWS for a copy.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Missouri.
Certified drinking water labs by state EPA guidance for private wells