PlainEnviro

Moses Lake Water Quality

Washington

Health Violations

According to EPA SDWIS, Moses Lake, Washington is served by 35 community water systems covering about 36,930 people. The same extract lists 125 health-based violation records, most recently coded 8000 in 2025. Counts are historical EPA registry rows, not a current compliance or drinkability score.

35
Water Systems
36,930
Population Served
125
Health-Based Violation Records
2
Distinct Contaminant Codes

Drinking water in Moses Lake, Washington is delivered through 35 EPA-regulated community water systems serving an estimated 36,930 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 125 violation records across the 35 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 2 distinct EPA contaminant codes: Revised Total Coliform Rule, Nitrate. 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
MOSES LAKE CITY OF 32,428 0 Clean
CASCADE VALLEY WATER DISTRICT 379 0 Clean
GOLDEN PLAINS MHP #1 360 0 Clean
STRATFORD ROAD ESTATES 312 0 Clean
HILLCREST WATER USERS ASSN 300 0 Clean
SKYLINE WATER SYSTEM INC 293 0 Clean
PARKER SPRING ACRES WATER ASSOC 255 30 Health
SUNRISE WATER ASSOCIATION 250 0 Clean
RIDGEVIEW ESTATES WATER ASSOCIATION 240 0 Clean
GROVE TERRACE MHP TWO LLC 220 0 Clean
Saddle Mountain Water Assoc. 219 1 Health
COUNTRY CLUB ESTATES WATER SYSTEM 186 0 Clean
Westshore Water Company 153 0 Clean
SKYLINE ACRES INC 151 0 Clean
HATTON TOWN OF 105 0 Clean
SUNBURST ESTATES WATER ASSN 100 0 Clean
FIRST POTHOLES WATER USERS ASSN 90 0 Clean
Viking Road Water System 88 0 Clean
MARINE VIEW HOME OWNERS ASSN 87 0 Clean
HI LO HOMEOWNERS ASSN 87 0 Clean
SECT 11 DIV 1 Ridgeview Water Assn 79 0 Clean
ADMIRAL WATER USERS ASSN 74 0 Clean
RAINIER TRACTS WATER ASSN 61 0 Clean
SUNSET ACRES WATER ASSN 61 0 Clean
MT VIEW WATER SYSTEM 44 9 Health
SUNSET ACRES WATER ASSOCIATION 40 0 Clean
SILVER SANDS CONDO WATER 37 0 Clean
SUNRISE ESTATES WATER SYSTEM 33 85 Health
ORCHARD HOMES WATER SYSTEM 31 0 Clean
MAPLES PLAT WATER SYSTEM 30 0 Clean
Desert Hills 30 0 Clean
Lyons Water System 28 0 Clean
COUNTRY LANE EAST 27 0 Clean
SUN DESERT INC 27 0 Clean
PARK ORCHARD TRACT 40 25 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
Saddle Mountain Water Assoc. Revised Total Coliform Rule 2025-07-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2025-07-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2025-01-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2024-04-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2024-01-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2024-01-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2024-01-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2023-07-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2023-04-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2023-04-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2023-04-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2023-01-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2023-01-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2023-01-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2023-01-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2023-01-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2022-04-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2022-04-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2022-01-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2022-01-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2022-01-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2021-01-01
MT VIEW WATER SYSTEM Nitrate 2020-01-01
MT VIEW WATER SYSTEM Nitrate 2020-01-01
MT VIEW WATER SYSTEM Nitrate 2020-01-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2019-04-01
MT VIEW WATER SYSTEM Nitrate 2019-01-01
MT VIEW WATER SYSTEM Nitrate 2019-01-01
MT VIEW WATER SYSTEM Nitrate 2019-01-01
MT VIEW WATER SYSTEM Nitrate 2019-01-01
MT VIEW WATER SYSTEM Nitrate 2019-01-01
MT VIEW WATER SYSTEM Nitrate 2019-01-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2019-01-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2019-01-01
SUNRISE ESTATES WATER SYSTEM Nitrate 2018-07-01
SUNRISE ESTATES WATER SYSTEM Nitrate 2018-04-01
SUNRISE ESTATES WATER SYSTEM Nitrate 2018-01-01
SUNRISE ESTATES WATER SYSTEM Nitrate 2018-01-01
SUNRISE ESTATES WATER SYSTEM Nitrate 2018-01-01
SUNRISE ESTATES WATER SYSTEM Nitrate 2018-01-01
SUNRISE ESTATES WATER SYSTEM Nitrate 2017-10-01
SUNRISE ESTATES WATER SYSTEM Nitrate 2017-10-01
SUNRISE ESTATES WATER SYSTEM Nitrate 2017-07-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2017-04-01
SUNRISE ESTATES WATER SYSTEM Nitrate 2017-04-01
SUNRISE ESTATES WATER SYSTEM Nitrate 2017-04-01
PARKER SPRING ACRES WATER ASSOC Nitrate 2017-01-01
SUNRISE ESTATES WATER SYSTEM Nitrate 2017-01-01
SUNRISE ESTATES WATER SYSTEM Nitrate 2017-01-01
SUNRISE ESTATES WATER SYSTEM Nitrate 2017-01-01

What are Moses Lake's health-based records for?

Moses Lake's health-based violation records carry 2 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.

Contaminant Records Systems
Nitrate 124 3
Revised Total Coliform Rule 1 1

TRI Facilities in Moses Lake

Facility Total Releases
Simplot U.S. Food Group Holdings Llc. 349.3K lbs
Moses Lake Industries Inc 152.6K lbs
Sgl Composites LLC 118.9K lbs
Terex Washington Awp Div Genie Industries 29.7K lbs
D&l Foundry Inc 18.1K lbs
Joyson Safety Systems Acquisition LLC 17.2K lbs
Performix Nutrition Systems LLC 1.8K lbs
Rec Solar Grade Silicon 385 lbs
Boeing A&m Moses Lake 158 lbs

Frequently Asked Questions

What does EPA SDWIS list for drinking water in Moses Lake, Washington? ▼
Moses Lake is listed with 35 EPA-regulated water systems covering approximately 36,930 people. 125 health-based violation records appear in the extract. A past registry row is not a current drinkability verdict; contact the local utility for current status.
How many water violations does Moses Lake have in this EPA extract? ▼
Moses Lake water systems have 125 health-based violation records in PlainEnviro's EPA SDWIS extract. This extract is filtered to EPA health-based records and does not include monitoring or reporting violations.
What contaminants were found in Moses Lake water? ▼
Health-based records for Moses Lake water systems carry the following EPA contaminant codes: Revised Total Coliform Rule, Nitrate. This source edition does not include authoritative contaminant names. Source: EPA SDWIS.
How many water systems serve Moses Lake? ▼
35 EPA-regulated community water systems serve Moses Lake, Washington, collectively covering approximately 36,930 people. Data is from the EPA Safe Drinking Water Information System (SDWIS).
Where does Moses Lake get its drinking water? ▼
Moses Lake's water supply comes from 35 EPA-regulated community water systems. Source type data is not available for all systems. For detailed supply information, contact your local water utility. Source: EPA SDWIS.
Are there pollution sources near Moses Lake? ▼
Yes, 9 EPA Toxic Release Inventory (TRI) facilities are registered in Moses Lake, Washington, reporting a combined 688.1K lbs of toxic chemical releases. TRI data reflects self-reported emissions; it does not measure exposure or health effects. Source: EPA TRI.

How does Moses Lake compare in Washington?

Of the 365 Washington places with at least one community water system on file, Moses Lake ranks #12 by number of systems (35).

Either side of it: Sequim (40), Gig Harbor (36), Poulsbo (35), Spokane (35)

About This Data

Figures here are the current EPA SDWIS extract joined to the 35 community water systems whose service area lists Moses Lake, 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.

Related

Browse all → | Rankings →
Data sourced from U.S. EPA environmental datasets. See our methodology for details. Retrieved and formatted by PlainEnviro