PlainWater
States → Washington

SPO CO WATER DIST 3 SYS 6

PWS ID: WA5393356 · Spokane, Washington 99212

SPO CO WATER DIST 3 SYS 6 serves 358 people in Spokane, Washington using Groundwater water sources. It has 476 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: SPO CO WATER DIST 3 SYS 6

SPO CO WATER DIST 3 SYS 6 is a local-owned community water system that delivers drinking water to 358 residents in Spokane, Washington (Spokane County) through 143 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 476 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 476 monitoring and reporting violations are on file. The most recent violation on record dates to 2007.

The most frequently cited contaminant at this system is Pentachlorophenol, recorded in 22 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Washington, EPA tracks 4,557 public water systems serving 9,736,844 people, with 314,648 cumulative violations and 20,590 health-based violations on record. About 92% of systems in the state carry at least one violation, and state-wide the average per system is 69 violations. SPO CO WATER DIST 3 SYS 6's 476 violations sit above the Washington average. Statewide, 98 of 247 UCMR5-tested systems have reported PFAS detections (39.7%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
358
Total Violations
476
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
143
County
Spokane
School/Daycare
No
MCL Violations
0
Monitoring Violations
476
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Pentachlorophenol MR 22 2007
Dalapon MR 11 2007
Picloram MR 11 2007
2,4,5-TP MR 11 2007
Aldicarb sulfoxide MR 11 2007
Aldicarb sulfone MR 11 2007
Methoxychlor MR 11 2007
Simazine MR 11 2007
Di(2-ethylhexyl) phthalate MR 11 2007
Hexachlorocyclopentadiene MR 11 2007
Heptachlor MR 11 2007
HEXACHLOROBENZENE MR 11 2007
Chlordane MR 11 2007
OXAMYL MR 11 2007
Dinoseb MR 11 2007
Endrin MR 11 2007
BHC-GAMMA MR 11 2007
Atrazine MR 11 2007
LASSO MR 11 2007
Heptachlor epoxide MR 11 2007
Toxaphene MR 11 2007
Benzo(a)pyrene MR 11 2007
Diquat MR 11 2007
Carbofuran MR 11 2007
Di(2-ethylhexyl) adipate MR 11 2007
Aldicarb MR 11 2007
ETHYLENE DIBROMIDE MR 9 2007
1,2-DIBROMO-3-CHLOROPROPANE MR 9 2007
1,2,4-Trichlorobenzene MR 8 2007
DICHLOROMETHANE MR 8 2007

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for SPO CO WATER DIST 3 SYS 6.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID WA5393356 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Washington Drinking Water Authority

Washington State Department of Health — Office of Drinking Water is the primacy agency that licenses and inspects SPO CO WATER DIST 3 SYS 6 under EPA-delegated authority.

Open WA regulator portal

Source: Washington State Department of Health — Office of Drinking Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2007 Pentachlorophenol MR 22 SDWIS / WA5393356 / 2326
2007 Dalapon MR 11 SDWIS / WA5393356 / 2031
2007 Picloram MR 11 SDWIS / WA5393356 / 2040
2007 2,4,5-TP MR 11 SDWIS / WA5393356 / 2110
2007 Aldicarb sulfoxide MR 11 SDWIS / WA5393356 / 2043
2007 Aldicarb sulfone MR 11 SDWIS / WA5393356 / 2044
2007 Methoxychlor MR 11 SDWIS / WA5393356 / 2015
2007 Simazine MR 11 SDWIS / WA5393356 / 2037
2007 Di(2-ethylhexyl) phthalate MR 11 SDWIS / WA5393356 / 2039
2007 Hexachlorocyclopentadiene MR 11 SDWIS / WA5393356 / 2042
2007 Heptachlor MR 11 SDWIS / WA5393356 / 2065
2007 HEXACHLOROBENZENE MR 11 SDWIS / WA5393356 / 2274
2007 Chlordane MR 11 SDWIS / WA5393356 / 2959
2007 OXAMYL MR 11 SDWIS / WA5393356 / 2036
2007 Dinoseb MR 11 SDWIS / WA5393356 / 2041

How SPO CO WATER DIST 3 SYS 6 Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric SPO CO WATER DIST 3 SYS 6 Washington avg Federal benchmark
Total violations 476 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 4.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 39.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 358 2,137 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 4,557 regulated public water systems in Washington.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is SPO CO WATER DIST 3 SYS 6 water safe to drink? ▼
SPO CO WATER DIST 3 SYS 6 (PWS ID: WA5393356) has 476 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 358 people using Groundwater sources.
How many people does SPO CO WATER DIST 3 SYS 6 serve? ▼
SPO CO WATER DIST 3 SYS 6 serves 358 people in Spokane, Washington. It is a Local-owned system using Groundwater water sources with 143 service connections.
What type of violations does SPO CO WATER DIST 3 SYS 6 have? ▼
SPO CO WATER DIST 3 SYS 6 has 476 total violations: 0 health-based violations (MCL exceedances or treatment failures), 476 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in SPO CO WATER DIST 3 SYS 6 water? ▼
No PFAS testing data is available for SPO CO WATER DIST 3 SYS 6 under the EPA's UCMR5 monitoring program.
What water source does SPO CO WATER DIST 3 SYS 6 use? ▼
SPO CO WATER DIST 3 SYS 6 uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Explore PlainWater

Water in Washington

All systems in state
All States

Water quality by state
Contaminants

PFAS & other pollutants
Guides

Understanding water quality

Related Data for Washington

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial