B78/100
Carlsborg Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 15,314 residents · Washington
What's In Carlsborg's Tap Water?
31
Contaminants Tested
0
Exceed EPA Limits
1
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Lead (90th percentile) | 0.002 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2024 – March 31, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2024 – March 31, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Water Utility Details
CARLSBORG LUD 10 12 13 14
Population Served
1,917
Water Source
Groundwater
System ID
WA5300307
CLALLAM BAY SEKIU
Population Served
1,824
Water Source
Groundwater
System ID
WA5313200
EVERGREEN CLALLAM COUNTY PUD 1
Population Served
1,694
Water Source
Groundwater
System ID
WA5324181
PORT ANGELES COMPOSITE
Population Served
9,879
Water Source
Surface Water
System ID
WA5343296
Frequently Asked Questions About Carlsborg Water
Is Carlsborg tap water safe to drink?
Carlsborg, Washington tap water receives a grade of B (78/100), which is considered good. Out of 32 contaminants tested, 1 exceed EPA maximum contaminant levels (MCLs) and 2 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Carlsborg's water?
Of the 32 contaminants tested in Carlsborg's water supply, the most notable include Copper (90th percentile), Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Carlsborg have any water quality violations?
Yes, Carlsborg has 64 EPA violation(s) on record, with the most recent in 2024. Violation types include MR, MON, Other. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Carlsborg?
Based on EPA data, using a water filter in Carlsborg is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Carlsborg's tap water come from?
Carlsborg's drinking water is sourced from groundwater and supplied by CARLSBORG LUD 10 12 13 14 and 3 other water system(s). The system serves approximately 15,314 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Carlsborg's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Carlsborg's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Carlsborg's water compare to other cities in Washington?
Carlsborg's water quality score of 78/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Washington state page to see how all cities in the state compare.
What should I do if I'm concerned about Carlsborg's water quality?
If you have concerns about Carlsborg's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (CARLSBORG LUD 10 12 13 14) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.