Public water system record
City of Moses Lake
Serves Moses Lake, Moses Lake North and Cascade Valley, Grant County, WA · 32,428 people served
Federal records show no health-based violations and 78 monitoring/reporting issues for City of Moses Lake in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 78
Key facts
- City of Moses Lake draws water from 19 wells (1 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: signed compliance agreement by Washington, April 1993.
- Record on file since 1979, with 8 health-based violations before October 19, 2016.
Check whether City of Moses Lake 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.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Styrene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Toluene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Benzene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Styrene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Toluene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Benzene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2022 | Resolved |
|
Fluoride
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Styrene
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Toluene
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Benzene
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Apr 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2018 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2018 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2017 | Resolved |
|
Thallium, Total
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Beryllium, Total
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Antimony, Total
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Selenium
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Nitrite
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Nickel
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Mercury
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Fluoride
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
CYANIDE
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Chromium (total)
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Cadmium
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Barium
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
Full record since 1979
EPA's records for City of Moses Lake go back to 1979. Before October 19, 2016 they list 8 health-based violations (8 archived by EPA without a recorded fix) and 192 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 1 |
| 1990s | 8 | 0 |
| 2000s | 0 | 172 |
| 2010 to October 18, 2016 | 0 | 19 |
| October 19, 2016 to 2019 | 0 | 23 |
| 2020s | 0 | 42 |
Most recent health-based violation before October 19, 2016: Total Coliform, began January 1998, Archived.
Show all 8 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 1998 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1997 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1997 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1992 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1992 | Archived |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Jul 1, 1992 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 1992 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1991 | Archived |
Enforcement actions
Washington regulators took 1 formal enforcement action against City of Moses Lake in 1993. The most recent was a signed compliance agreement in April 1993.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Apr 16, 1993 | Washington | Signed compliance agreement | 5 violations (5 health-based): Total Coliform |
Where the water comes from
City of Moses Lake draws water from 19 wells (1 of them for emergency, seasonal or other part-time use).
Annual water quality report
City of Moses Lake 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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 Washington.
Certified drinking water labs by state EPA guidance for private wells