A82/100
Santa Ysabel Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 9,913 residents · California
What's In Santa Ysabel's Tap Water?
1
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
2
Violations (last 5yr)
0
Unresolved
1
Health-Related
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 1, 2022 – October 31, 2022Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway
TIER 1 — URGENTResolved
Maximum Contaminant Level Violation
When: September 1, 2021 – September 30, 2021Rule: Total Coliform RuleEnforcement: 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
LAKE HENSHAW RESORT INC.
Population Served
9,913
Water Source
Groundwater
System ID
CA3700900
Frequently Asked Questions About Santa Ysabel Water
Is Santa Ysabel tap water safe to drink?
Santa Ysabel, California tap water receives a grade of A (82/100), which is considered excellent. Out of 1 contaminants tested, none exceed EPA maximum contaminant levels (MCLs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Santa Ysabel's water?
1 contaminants were tested in Santa Ysabel's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Santa Ysabel have any water quality violations?
Yes, Santa Ysabel has 14 EPA violation(s) on record, with the most recent in 2022. Violation types include MON, MCL, MR. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Santa Ysabel?
Santa Ysabel water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. All contaminants are within health goals.
Where does Santa Ysabel's tap water come from?
Santa Ysabel's drinking water is sourced from groundwater and supplied by LAKE HENSHAW RESORT INC.. The system serves approximately 9,913 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Santa Ysabel'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. Santa Ysabel'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 Santa Ysabel's water compare to other cities in California?
Santa Ysabel's water quality score of 82/100 earns a grade of A, which is considered excellent. This places Santa Ysabel among the better-performing water systems in California. Visit our California state page to see how all cities in the state compare.
What should I do if I'm concerned about Santa Ysabel's water quality?
If you have concerns about Santa Ysabel'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 (LAKE HENSHAW RESORT INC.) 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.