C43/100
Louisa Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 9,653 residents · Virginia
What's In Louisa's Tap Water?
34
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
2
Violations (last 5yr)
2
Unresolved
2
Health-Related
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2025 – September 30, 2025Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved
Exceeded the Maximum Contaminant Level (running average)
When: July 1, 2025 – September 30, 2025Rule: Stage 2 DBPREnforcement: Informal — resolved cooperativelyVerify on EPA.gov
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
BLUE RIDGE SHORES
Population Served
1,707
Water Source
Groundwater
System ID
VA2109075
LOUISA, TOWN OF
Population Served
1,555
Water Source
Purchased Surface Water
System ID
VA2109450
LOUISA COUNTY WATER AUTHORITY
Population Served
4,254
Water Source
Surface Water
System ID
VA2109510
LOUISA COUNTY ZION CROSSROADS
Population Served
2,137
Water Source
Groundwater
System ID
VA2109990
Frequently Asked Questions About Louisa Water
Is Louisa tap water safe to drink?
Louisa, Virginia tap water receives a grade of C (43/100), which is considered fair. 1 contaminant(s) exceed EPA maximum contaminant levels and 68 violation(s) are on record. Residents should consider using an NSF-certified water filter to reduce contaminant exposure.
What contaminants are in Louisa's water?
Of the 35 contaminants tested in Louisa's water supply, the most notable include Copper (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 1 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Louisa have any water quality violations?
Yes, Louisa has 68 EPA violation(s) on record, with the most recent in 2025. Violation types include MCL, MR. 60 of these are health-based violations, which are the most serious category.
Do I need a water filter in Louisa?
Based on EPA data, using a water filter in Louisa 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 Louisa's tap water come from?
Louisa's drinking water is sourced from groundwater and supplied by BLUE RIDGE SHORES and 3 other water system(s). The system serves approximately 9,653 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Louisa'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. Louisa'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 Louisa's water compare to other cities in Virginia?
Louisa's water quality score of 43/100 earns a grade of C, which is considered fair. This is a below-average score that indicates room for improvement. Visit our Virginia state page to see how all cities in the state compare.
What should I do if I'm concerned about Louisa's water quality?
If you have concerns about Louisa'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 (BLUE RIDGE SHORES) 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.