Water Quality in Deer Harbor, WA (98243)
EPA violation data for public water systems serving ZIP code 98243.
18
Total Violations
16
Health-Based
2
Monitoring / Reporting
18
Resolved
What does this mean?
18 of 18 violations have been resolved. 16 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 2 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.
Violations Detail (18 total)
| Contaminant | Category | MCL Limit | Measured | Date | Status | Health Effects |
|---|---|---|---|---|---|---|
| TTHM | Health-Based | N/A | 88.1 | Jun 30, 2023 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Health-Based | N/A | 71.4 | Jun 30, 2023 | Resolved | N/A |
| TTHM | Health-Based | N/A | 110.8 | Mar 31, 2023 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Health-Based | N/A | 99.5 | Mar 31, 2023 | Resolved | N/A |
| TTHM | Health-Based | N/A | 118.5 | Dec 31, 2022 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Health-Based | N/A | 107.9 | Dec 31, 2022 | Resolved | N/A |
| Nitrate | Monitoring | N/A | N/A | Dec 31, 2022 | Resolved | Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath |
| Total Haloacetic Acids (HAA5) | Health-Based | N/A | 92.4 | Sep 30, 2022 | Resolved | N/A |
| TTHM | Health-Based | N/A | 102.8 | Sep 30, 2022 | Resolved | N/A |
| Total Haloacetic Acids (HAA5) | Health-Based | N/A | 111.8 | Jun 30, 2022 | Resolved | N/A |
Lead & Copper Levels
Violation Timeline
2023(4)
TTHM
02
Total Haloacetic Acids (HAA5)
02
TTHM
02
Total Haloacetic Acids (HAA5)
02
2022(9)
TTHM
02
Total Haloacetic Acids (HAA5)
02
Nitrate
03
Total Haloacetic Acids (HAA5)
02
TTHM
02
Total Haloacetic Acids (HAA5)
02
TTHM
02
Total Haloacetic Acids (HAA5)
02
TTHM
02
How Does This Compare?
Deer Harbor (98243) has 18 recorded violations, including 16 health-based. All violations have been resolved, which is a positive sign for current water quality. Consider testing your tap water independently for added peace of mind.
Recommended Water Filters
Based on the contaminants detected in your area, these filter types may help improve your water quality.
Reverse Osmosis System
One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.
Targets:Nitrate, Nitrite, Dissolved Solids
Look for:NSF/ANSI 58 certified
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 certified
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) certified
Always look for filters certified by NSF International for the specific contaminants you want to remove.