ZipCheckup grade for 98230: A.
The model grade is high, but the records on this page include findings worth reviewing.
Your top priority: match a filter's certification to the violations (10 health-based violations). Check your ZIP → NSF certified filters
Blaine, WA (98230): 10 Health-Based Violations Recorded for Mapped Water Systems - 89/100
EPA data combined for 12 water systems mapped to this ZIP (largest mapped system: Birch Bay Water & Sewer District)
Health-based violation records by water system:
- WA5318750 (9)
- Lynden Water Department (1)
EPA records for the water systems mapped to 98230 in Blaine, WA contain 23 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 10 are marked health-based.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water EPA records for water systems mapped to this ZIP show 10 health-based violations and 13 non-health-based (since 2021).
- Lead The reported 90th-percentile lead result of 0.0018 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
- Radon EPA Zone 3 - county-level radon potential, not evidence of a low home result.
- Flood 45 cumulative NFIP claim records. Check the current FEMA map for a specific address.
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Score Breakdown
Overall Home Safety Score: 89/100
This is the published model score. Component and domain values are shown independently; they are not added together on this page.
Canonical components
Required domains
Coverage: 4 of 4 components and 3 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (6) CRITICAL
Your Water System
ZIP code 98230 in Blaine, Washington is mapped to the water system Birch Bay Water & Sewer District (EPA ID: WA5395904). This system provides water to approximately 9,046 people from groundwater sources.
There are 12 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Birch Bay Water & Sewer District | WA5395904 | 9,046 | Groundwater |
| City of Blaine | WA5307300 | 6,319 | Groundwater |
| Bell Bay Jackson Water Association | WA5305450 | 350 | Groundwater |
| Percie Road Water Association | WA5367020 | 250 | Groundwater |
| Custer Water Association | WA5317050 | 365 | Groundwater |
Other Water Quality Reports in Washington
- 98001 (Auburn) - 6 violations recorded for mapped water systems
- 98002 (Auburn) - 2 violations recorded for mapped water systems
- 98003 (Federal Way) - 1 violation recorded for mapped water systems
- 98004 (Bellevue) - 3 violations recorded for mapped water systems
- 98005 (Bellevue)
- 98006 (Bellevue) - 5 violations recorded for mapped water systems
- 98007 (Bellevue)
- 98008 (Bellevue)
- 98009 (Bellevue)
- 98010 (Black Diamond)
- 98011 (Bothell) - 1 violation recorded for mapped water systems
- 98012 (Bothell) - 2 violations recorded for mapped water systems
- 98013 (Burton)
- 98014 (Carnation) - 3 violations recorded for mapped water systems
- 98015 (Bellevue)
- 98019 (Duvall) - 45 violations recorded for mapped water systems
- 98020 (Edmonds) - 3 violations recorded for mapped water systems
- 98021 (Bothell) - 5 violations recorded for mapped water systems
- 98022 (Enumclaw) - 2 violations recorded for mapped water systems
- 98023 (Federal Way) - 1 violation recorded for mapped water systems
Nearby Water Quality Reports
- 98231 (Blaine) - 2 mi
- 98240 (Custer) - 5 mi - 22 violations recorded for mapped water systems
- 98248 (Ferndale) - 9 mi - 31 violations recorded for mapped water systems
- 98264 (Lynden) - 13 mi - 15 violations recorded for mapped water systems
- 98281 (Point Roberts) - 15 mi - 1 violation recorded for mapped water systems
- 98226 (Bellingham) - 17 mi - 5 violations recorded for mapped water systems
- 98262 (Lummi Island) - 17 mi - 12 violations recorded for mapped water systems
- 98227 (Bellingham) - 18 mi
- 98228 (Bellingham) - 18 mi
- 98225 (Bellingham) - 19 mi - 1 violation recorded for mapped water systems
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Birch Bay Water & Sewer District (WA5395904) on EPA.gov.
5 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.
UCMR 5 PFAS monitoring: no reportable detections in available records
Available federal UCMR5 records for water systems mapped to ZIP code 98230 show no PFAS detections among the compounds tested, at the program's reporting levels.
The EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR5) required community and non-transient non-community water systems serving 3,300 or more people to test for 29 PFAS compounds and lithium between 2023 and 2025. Systems with no detections at the federal minimum reporting level had no results at or above that reporting level.
Environmental Hazards (11) HIGH
Home & Infrastructure (7) OK
Cost & Community (9) OK
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Blaine
Based on local data for ZIP 98230, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Home & Flood Insurance
The ZIP code for this report in Blaine has 45 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.
Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote
Check Your Flood Zone (Free)FEMA flood map lookup - see if your property is in a flood zone
Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)
Service recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.
Frequently Asked Questions
Is the tap water in 98230 safe to drink?
EPA SDWIS records 23 violations since 2021 across the water systems mapped to ZIP 98230 (primary system: Birch Bay Water & Sewer District), including 10 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.
Where does 98230's water come from?
The recorded water source for Birch Bay Water & Sewer District, a system mapped to ZIP code 98230, is Groundwater. This system serves approximately 9,046 people.
How does Blaine water compare to the national average?
Blaine's Home Safety Score ranks better than 81% of U.S. ZIP codes, and lower than 59% of ZIP codes within Washington.
How can I get my water tested in Blaine?
If Birch Bay Water & Sewer District supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.
Is lead a concern in 98230 tap water?
The Lead and Copper Rule record selected for 98230 reports a 90th-percentile lead result of 0.0018 mg/L for a water system mapped to this ZIP (record date 2025-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.
What is the radon risk for 98230?
98230 is mapped to a county in EPA Radon Zone 3 (low county-level radon potential; EPA recommends testing every home), located in Whatcom County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
What does the NFIP claim history show for ZIP 98230?
FEMA records contain 45 flood insurance claims filed in ZIP code 98230; the recorded rated-zone value (the most frequent one if there are several claims) is AE, which is claims evidence and may differ from the current FEMA map zone for a property. Claim records do not establish current property risk. Review FEMA's map for the specific property.
How to cite this page
ZipCheckup. (2026). Blaine, WA (98230): 10 Health-Based Violations Recorded for Mapped Water Systems - 89/100. https://zipcheckup.com/report/98230/
@misc{zipcheckup-report-98230,
author = {{ZipCheckup}},
title = {{Blaine, WA (98230): 10 Health-Based Violations Recorded for Mapped Water Systems - 89/100}},
year = {2026},
url = {https://zipcheckup.com/report/98230/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 98230
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 98231 | Blaine, WA | 2.2 mi | N/A | 0 |
| 98240 | Custer, WA | 5.3 mi | N/A | 22 |
| 98248 | Ferndale, WA | 9.4 mi | A | 31 |
| 98264 | Lynden, WA | 12.5 mi | A | 15 |
| 98281 | Point Roberts, WA | 14.8 mi | N/A | 1 |
| 98226 | Bellingham, WA | 17.4 mi | B | 5 |
| 98262 | Lummi Island, WA | 17.5 mi | N/A | 12 |
| 98227 | Bellingham, WA | 17.9 mi | N/A | 0 |
| 98228 | Bellingham, WA | 17.9 mi | N/A | 0 |
| 98225 | Bellingham, WA | 18.5 mi | A | 1 |
Nearby ZIP Code Reports
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ZIP 98230 scores in the top tier nationally.