Public water system record
City of Sunnyside
Serves Sunnyside, Yakima County, WA · 17,194 people served
Federal records show no health-based violations and 23 monitoring/reporting issues for City of Sunnyside in the last ten years. At least one of these issues remains unresolved.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 23
Key facts
- City of Sunnyside draws water from 9 wells (1 of them for emergency, seasonal or other part-time use).
- Record on file since 1979, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 2,138 unknown out of 3,886 service lines.
Check whether City of Sunnyside 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 |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2025 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2023 | Active |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Chlordane
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Heptachlor epoxide
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Heptachlor
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
LASSO
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Atrazine
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Simazine
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Methoxychlor
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
BHC-GAMMA
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Endrin
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 1999 | Active |
Full record since 1979
EPA's records for City of Sunnyside go back to 1979. Before October 19, 2016 they list 2 health-based violations (2 archived by EPA without a recorded fix) and 27 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 1 |
| 1990s | 2 | 1 |
| 2000s | 0 | 4 |
| 2010 to October 18, 2016 | 0 | 21 |
| October 19, 2016 to 2019 | 0 | 2 |
| 2020s | 0 | 5 |
Most recent health-based violation before October 19, 2016: Total Coliform, began October 1997, Archived.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1997 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1995 | Archived |
Where the water comes from
City of Sunnyside draws water from 9 wells (1 of them for emergency, seasonal or other part-time use).
Annual water quality report
City of Sunnyside 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