Roche Harbor Water System Inc.
EPA ID: WA5373230 · 2,091 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Roche Harbor Water System Inc. (WA5373230): 2 EPA violations in the last five years. Even though Roche Harbor Water System Inc. accumulated 2 violations over five years, all have been formally resolved - the provider currently meets EPA standards for 2,091 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Roche Harbor Water System Inc. Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Roche Harbor Water System Inc. serves a community with a median household income of $90,146 and an estimated 9,127 residents across its service area. Approximately 43% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Roche Harbor Water System Inc.'s water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Infrastructure Risk
Detected Contaminants
How Roche Harbor Water System Inc. compares to EPA limits
What This Means For You
Haloacetic Acids (HAA5) at 1 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Total Trihalomethanes (TTHM) at 1 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Haloacetic Acids (HAA5) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
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Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Roche Harbor Water System Inc. (EPA ID: WA5373230) is a community water system in Washington that serves approximately 2,091 people from surface water sources.
This system serves ZIP code 98250 in Friday Harbor.
Violation History
Status breakdown for accepted records with record years 2021-2026: 0 resolved, 2 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| January 1, 2026 | Total Trihalomethanes (TTHM) | Non-health-based | Archived |
| January 1, 2026 | Haloacetic Acids (HAA5) | Non-health-based | Archived |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 1 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0033 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by WA or modeled from parcel and building-footprint data.
- 98250 - Friday Harbor
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Roche Harbor Water System Inc. (WA5373230) on EPA.gov.
Frequently Asked Questions
Is Roche Harbor Water System Inc. water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Roche Harbor Water System Inc.; its 2 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Roche Harbor Water System Inc. serve?
Roche Harbor Water System Inc. serves approximately 2,091 people across 1 ZIP code in Washington.
Where does Roche Harbor Water System Inc. get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Roche Harbor Water System Inc. (WA): 2 EPA Violations. https://zipcheckup.com/water-system/wa5373230/
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author = {{ZipCheckup}},
title = {{Roche Harbor Water System Inc. (WA): 2 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/wa5373230/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Roche Harbor Water System Inc. (EPA ID: WA5373230) - request the latest Consumer Confidence Report or ask about specific contaminants.