Water Quality in 83843 — Moscow, ID
EPA data for MOSCOW WATER DEPT
Data source: U.S. Environmental Protection Agency (EPA) SDWIS Last verified: March 16, 2026
Your Water System
ZIP code 83843 in Moscow, Idaho is served by MOSCOW WATER DEPT (EPA ID: ID2290023). This system provides water to approximately 26,000 people from groundwater sources.
There are 4 community water systems serving this area.
Lead & Copper in Your Water
No Lead & Copper Rule sampling data available for systems serving this ZIP code.
Violation Summary
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 2, 2025 | Stage 2 DBP Rule | Monitoring | Unresolved |
| January 1, 2025 | Haloacetic Acids (HAA5) | Monitoring | Unresolved |
| January 1, 2025 | Total Trihalomethanes (TTHM) | Monitoring | Unresolved |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Resolved |
| October 17, 2024 | Stage 2 DBP Rule | Monitoring | Resolved |
| December 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| December 1, 2023 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| December 1, 2023 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| December 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| July 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| July 1, 2023 | Consumer Confidence Report Rule | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for water systems serving this ZIP code:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 6 | No |
| Stage 2 DBP Rule | Treatment Technique | 3 | Yes |
| PFOA | PFAS | 1 | No |
| PFNA | PFAS | 1 | No |
| Monochloroacetic Acid | Disinfection Byproducts | 1 | No |
| Dichloroacetic Acid | Disinfection Byproducts | 1 | No |
| Bromodichloromethane | Disinfection Byproducts | 1 | No |
| Dibromochloromethane | Disinfection Byproducts | 1 | No |
| Bromoform | Disinfection Byproducts | 1 | No |
| Chlorodibromomethane | Disinfection Byproducts | 1 | No |
| Trichloroacetic Acid | Disinfection Byproducts | 1 | No |
| Monobromoacetic Acid | Disinfection Byproducts | 1 | No |
| Dibromoacetic Acid | Disinfection Byproducts | 1 | No |
| Bromochloroacetic Acid | Disinfection Byproducts | 1 | No |
| Bromodichloroacetic Acid | Disinfection Byproducts | 1 | No |
Need help with your water quality?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| MOSCOW WATER DEPT | ID2290023 | 26,000 | Groundwater |
| UNIVERSITY OF IDAHO | ID2290042 | 8,589 | Groundwater |
| NORTH TOMER BUTTE W&S DISTRICT | ID2290010 | 259 | Groundwater |
| APEX LIVING COMMUNITY | ID2290024 | 150 | Groundwater |
What You Can Do
- Request your water system’s Consumer Confidence Report (CCR) — Your utility is required to publish this annually
- Consider a home water test — Independent testing can reveal issues in your specific plumbing
- Install a certified water filter — NSF-certified filters can address specific contaminants
- Contact your water provider — Ask about current treatment and any ongoing remediation
Need help with water testing or filtration?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Other Water Quality Reports in Idaho
- 83201 (Pocatello) — 4 violations
- 83210 (Aberdeen)
- 83211 (American Falls) — 30 violations
- 83213 (Arco) — 4 violations
- 83214 (Arimo) — 4 violations
- 83215 (Atomic City)
- 83217 (Bancroft)
- 83221 (Blackfoot) — 9 violations
- 83223 (Bloomington) — 1 violation
- 83226 (Challis) — 45 violations
- 83228 (Clifton) — 16 violations
- 83232 (Dayton) — 7 violations
- 83234 (Downey) — 2 violations
- 83236 (Firth)
- 83237 (Franklin) — 38 violations
- 83239 (Georgetown)
- 83241 (Grace) — 5 violations
- 83244 (Howe) — 1 violation
- 83245 (Inkom) — 5 violations
- 83246 (Lava Hot Springs) — 2 violations
Nearby Water Quality Reports
- 99163 (Pullman, WA) — 9 mi — 11 violations
- 83814 (Coeur D Alene) — 67 mi
- 99201 (Spokane, WA) — 68 mi
- 83854 (Post Falls) — 68 mi
- 99301 (Pasco, WA) — 106 mi — 265 violations
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for MOSCOW WATER DEPT (ID2290023) on EPA.gov.
Frequently Asked Questions
Is the tap water in 83843 safe to drink?
Moscow’s water system has recorded 1 health-based violation in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
Where does 83843’s water come from?
The primary water source for this area is groundwater. MOSCOW WATER DEPT serves approximately 26,000 people.
How can I get my water tested?
Contact your local water utility for a free water quality report, or hire a certified lab for independent home water testing. The EPA recommends testing annually if you use a private well.
Does 83843 have lead in the water?
No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 83843. If you are concerned about lead, contact your water utility or have your tap water independently tested.
What is the radon risk in 83843?
Radon zone data is not available for ZIP code 83843. The EPA recommends testing all homes for radon regardless of location, as radon levels can vary significantly even within the same neighborhood.