Oak Hills Tap Water Quality Report
Oak Hills's water record shows 6 contaminants with an EPA health goal detected in some samples (no level on file) and 1 contaminant above a state limit. Consider using a certified water filter for additional protection.
Water system
SBDNO COUNTY SERVICE AREA 70J
People Served
12,580
Health-based violations since 2020
0
SBDNO COUNTY SERVICE AREA 70J. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Aug 2024 · SBDNO COUNTY SERVICE AREA 70J
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Oak Hills Tap Water Safe to Drink?
We recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems. Oak Hills's water record shows 6 contaminants with an EPA health goal detected in some samples (no level on file) and 1 contaminant above a state limit.
SBDNO COUNTY SERVICE AREA 70J, Oak Hills's water system, serves 12,580 people. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for SBDNO COUNTY SERVICE AREA 70J is from Aug 2024.
State Water Board lab results show SBDNO COUNTY SERVICE AREA 70J's treated or delivered water above California's hexavalent chromium limit of 10 µg/L (state MCL, in effect since October 1, 2024). Its highest average is 19 µg/L at DBPR Sample (1 sample since October 1, 2024, latest February 3, 2025). Its compliance date, for a system of its size, is October 1, 2027. Source: State Water Resources Control Board lab results (updated 2026-09-15).
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in California
Oak Hills Water Service Areas
What these numbers actually mean for Oak Hills, CA
We read Oak Hills, CA’s published record and send you a short report — which findings warrant a decision, which to ignore, and what to do about it. Including when the answer is nothing.
- 6 contaminants with an EPA health goal detected in some samples (no level on file) and 1 contaminant above a state limit
- 35 results on file
- 23 PFAS compounds on record
Buying a home here? Property Water Report — $49 Emailed within one business day.
Fluoride in Oak Hills's water
SBDNO COUNTY SERVICE AREA 70J
PWSID CA3610125
No fluoride level in our data for SBDNO COUNTY SERVICE AREA 70J. Your utility's annual water quality report (CCR) lists it.
Get the Weekly Water Brief
One email a week on water testing, treatment, and what water-quality data means for your home.
Free forever. Unsubscribe anytime. We never share your email.
General-Purpose Water Filters for Oak Hills
Oak Hills's results show no result above EPA's health goals or legal limits, so these are general-purpose NSF/ANSI 53 certified filters, not chosen for any contaminant.
Pentair Residential Filtration, LLC
Everpure Residential H-300-NXT
NSF Certified:
Capacity
3001 gal
Filter Life
10 mo
Flow Rate
0.5 gpm
Removes 5 contaminants:
Whirlpool Corporation
W11256135
NSF Certified:
Capacity
1001 gal
Filter Life
3 mo
Flow Rate
0.7 gpm
Removes 19 contaminants:
+14 more
Benzene, Carbofuran, Chlorine (Free), Chlorine (Total), Chlorine Dioxide, Chlorobenzene, Cryptosporidium, Ethylbenzene, Lead, Mercury, Metolachlor, Tetrachloroethylene, Toxaphene, Turbidity
Whirlpool Corporation
W11569861
NSF Certified:
Capacity
1001 gal
Filter Life
3 mo
Flow Rate
0.52 gpm
Removes 22 contaminants:
+17 more
Atrazine, Benzene, Carbofuran, Chlorine (Free), Chlorine (Total), Chlorine Dioxide, Chlorobenzene, Cryptosporidium, Ethylbenzene, Lead, Mercury, Metolachlor, Styrene, Tetrachloroethylene, Toxaphene, Trichloroethylene, Turbidity
Santevia
Bath Filter
NSF Certified:
Flow Rate
0.36 gpm
Highlights:
- Organic cotton design reduces plastic used in construction
- Affordable upfront & ongoing cost
- The only bath filter that removed 100% chlorine with “normal” faster faucet flow
Removes 1 contaminants:
Test Your Water Quality
Professional laboratory testing provides accurate, detailed analysis of your drinking water.
SimpleLab
Advanced Home Water Test
$269
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.
Tap Score
Advanced Microplastics Test
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.
Tap Score
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.
What Oak Hills's water readings can explain
Utility-reported data for Oak Hills includes a chlorine-based disinfectant — the readings behind these common tap water questions. Each page starts with the hot-tap and cold-tap check, then shows what your own water system reported.
On a private well near Oak Hills? Public-water results do not apply to private wells. See San Bernardino County well water testing and USGS risk data — modeled arsenic, nitrate, and the tests to run.
Frequently Asked Questions About Oak Hills Tap Water
Oak Hills's water record shows 6 contaminants with an EPA health goal detected in some samples (no level on file) and 1 contaminant above a state limit. We recommend using a certified water filter for additional protection, especially for vulnerable populations like children, pregnant women, and those with compromised immune systems. State Water Board lab results show SBDNO COUNTY SERVICE AREA 70J's treated or delivered water above California's hexavalent chromium limit of 10 µg/L (state MCL, in effect since October 1, 2024). Its highest average is 19 µg/L at DBPR Sample (1 sample since October 1, 2024, latest February 3, 2025). Its compliance date, for a system of its size, is October 1, 2027. Source: State Water Resources Control Board lab results (updated 2026-09-15).
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach SBDNO COUNTY SERVICE AREA 70J. For a problem with your water now (discolored water, no water, low pressure, a leak), contact SBDNO COUNTY SERVICE AREA 70J directly.
Check another location
Get the Weekly Water Brief
One email a week on water testing, treatment, and what water-quality data means for your home.
One email a week. Unsubscribe anytime.