Pasco Water Quality
Washington
According to EPA SDWIS, Pasco, Washington is served by 23 community water systems covering about 119,125 people. The same extract lists 41 health-based violation records, most recently coded 1005 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Pasco, Washington is delivered through 23 EPA-regulated community water systems serving an estimated 119,125 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 41 violation records across the 23 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 3 distinct EPA contaminant codes: Arsenic, Nitrate, Fluoride. 9 TRI-reporting industrial facilities are also located within the city limits.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Washington drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| PASCO WATER DEPARTMENT | 115,102 | 0 | Clean |
| Great Basin Water Burbank | 656 | 10 | Health |
| OASIS WATER CORPORATION | 556 | 0 | Clean |
| BURBANK IRRIGATION DISTRICT 4 | 527 | 0 | Clean |
| Great Basin Water Kiona | 520 | 0 | Clean |
| RED MOUNTAIN WATER ASSOCIATION | 200 | 0 | Clean |
| Clark Addition Water System | 189 | 0 | Clean |
| SOUTHGATE WATER COMPANY | 175 | 0 | Clean |
| RANGEVIEW | 122 | 6 | Health |
| ConAgra Foods Lamb Weston Inc-Farm | 107 | 0 | Clean |
| Great Basin Water Sunrise | 100 | 0 | Clean |
| NORTH SLOPE ESTATES PROPERTY | 97 | 5 | Health |
| Hi-Point Housing | 96 | 0 | Clean |
| Canyon Farm Camp | 96 | 0 | Clean |
| Graystone WS | 94 | 0 | Clean |
| CLEARWATER DOMESTIC WATER ASSN | 78 | 0 | Clean |
| RIVER RIDGE ESTATES | 77 | 0 | Clean |
| PREDATOR RIDGE | 66 | 0 | Clean |
| J & B Orchards - South | 63 | 0 | Clean |
| SUNSET DOMESTIC WATER ASSN | 60 | 0 | Clean |
| AgriNorthwest Riverbend | 59 | 16 | Health |
| LAKEVIEW | 50 | 4 | Health |
| KEPPS ACRES ASSOCIATION | 35 | 0 | Clean |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| NORTH SLOPE ESTATES PROPERTY | Arsenic | 2025-07-01 |
| NORTH SLOPE ESTATES PROPERTY | Arsenic | 2025-07-01 |
| AgriNorthwest Riverbend | Nitrate | 2025-01-01 |
| LAKEVIEW | Nitrate | 2024-07-01 |
| Great Basin Water Burbank | Fluoride | 2024-04-01 |
| Great Basin Water Burbank | Fluoride | 2024-04-01 |
| NORTH SLOPE ESTATES PROPERTY | Arsenic | 2024-04-01 |
| NORTH SLOPE ESTATES PROPERTY | Arsenic | 2024-04-01 |
| NORTH SLOPE ESTATES PROPERTY | Arsenic | 2024-04-01 |
| LAKEVIEW | Nitrate | 2024-01-01 |
| LAKEVIEW | Nitrate | 2024-01-01 |
| LAKEVIEW | Nitrate | 2024-01-01 |
| Great Basin Water Burbank | Fluoride | 2024-01-01 |
| Great Basin Water Burbank | Fluoride | 2024-01-01 |
| AgriNorthwest Riverbend | Nitrate | 2024-01-01 |
| AgriNorthwest Riverbend | Nitrate | 2024-01-01 |
| Great Basin Water Burbank | Nitrate | 2022-01-01 |
| Great Basin Water Burbank | Nitrate | 2022-01-01 |
| RANGEVIEW | Nitrate | 2021-04-01 |
| AgriNorthwest Riverbend | Nitrate | 2021-04-01 |
| AgriNorthwest Riverbend | Nitrate | 2021-04-01 |
| RANGEVIEW | Nitrate | 2021-01-01 |
| RANGEVIEW | Nitrate | 2021-01-01 |
| AgriNorthwest Riverbend | Nitrate | 2021-01-01 |
| Great Basin Water Burbank | Nitrate | 2020-04-01 |
| Great Basin Water Burbank | Nitrate | 2020-04-01 |
| Great Basin Water Burbank | Nitrate | 2020-01-01 |
| Great Basin Water Burbank | Nitrate | 2020-01-01 |
| AgriNorthwest Riverbend | Nitrate | 2019-10-01 |
| AgriNorthwest Riverbend | Nitrate | 2019-07-01 |
| AgriNorthwest Riverbend | Nitrate | 2019-01-01 |
| AgriNorthwest Riverbend | Nitrate | 2019-01-01 |
| AgriNorthwest Riverbend | Nitrate | 2018-10-01 |
| AgriNorthwest Riverbend | Nitrate | 2018-07-01 |
| AgriNorthwest Riverbend | Nitrate | 2018-01-01 |
| AgriNorthwest Riverbend | Nitrate | 2018-01-01 |
| RANGEVIEW | Nitrate | 2016-04-01 |
| RANGEVIEW | Nitrate | 2016-04-01 |
| RANGEVIEW | Nitrate | 2016-01-01 |
| AgriNorthwest Riverbend | Nitrate | 2015-04-01 |
| AgriNorthwest Riverbend | Nitrate | 2015-01-01 |
What are Pasco's health-based records for?
Pasco's health-based violation records carry 3 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
TRI Facilities in Pasco
| Facility | Total Releases |
|---|---|
| Pasco Processing LLC | 398.0K lbs |
| Lamb Weston Inc Pasco Plant | 136.0K lbs |
| Tidewater Terminal Co Snake River Terminal | 39.8K lbs |
| Tesoro Logistics Pasco Terminal | 15.8K lbs |
| Verdesian Life Sciences | 10.9K lbs |
| American Rock Products Pasco | 8.0K lbs |
| Simplot Frozen Vegetables LLC | 375 lbs |
| Safety-Kleen Systems Pasco (pas) | 84 lbs |
| Ergon Asphalt & Emulsions Inc. - Pasco | 0 lbs |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Pasco, Washington? ▼
How many water violations does Pasco have in this EPA extract? ▼
What contaminants were found in Pasco water? ▼
How many water systems serve Pasco? ▼
Where does Pasco get its drinking water? ▼
Are there pollution sources near Pasco? ▼
How does Pasco compare in Washington?
Of the 365 Washington places with at least one community water system on file, Pasco ranks #22 by number of systems (23).
Either side of it: Oak Harbor (26), Olympia (25), Othello (21), Loon Lake (20)
About This Data
Figures here are the current EPA SDWIS extract joined to the 23 community water systems whose service area lists Pasco, ranked against the 365 Washington places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.