Sheep Creek Water CompanyWater quality report
- Serves
- 4,002
- Connections
- 1,213
- Water source
- Groundwater
- Based in
- Phelan, CA
- County
- San Bernardino
- Owner
- Private
The ZIP code it serves
PWSID CA3610109 · EPA data
Read this first
Nothing in the federal data for this utility is above a health goal. That covers PFAS, lithium, lead and copper; it does not cover everything, so read what this report cannot tell you below.
No health-based violations on file since 2016. EPA lists 1 monitoring or reporting violation, which are paperwork and testing lapses rather than water quality findings.
What was found, stop by stop
- Below the health goal
- Above the health goal
- Above the legal limit
- No federal data
At the source
EPA UCMR 5 sampled this utility for 29 PFAS and lithium from July 7, 2025 to Jan. 6, 2026. Each tick under a result’s line is one sample where it was found, dated when you point at it.
NSF’s PFAS claims are tested to below 20 ppt. EPA’s limit is 10 ppt, and EPA says no certification yet shows a filter reaching its levels.
- Limit and goal 103.2
Detected, below the legal limit and the health goal.
NSF/ANSI 53 · Look for: Total PFAS ReductionSame claim, other certifiers’ wording: Perfluorohexane Sulfonic Acid (PFHxS)
- Hazard Index benchmark 2,0006.7
Below EPA’s hazard index benchmark of 2,000 ppt. PFBS has no legal limit or health goal of its own.
NSF/ANSI 53 · Look for: Total PFAS Reduction
Also found, with no federal limit
EPA measured these PFAS to learn how often they occur. None has a legal limit or a health goal yet.
Compound Highest sample Found in Certification claim PFPeA 9.6 ppt 2 of 2 None covers it PFHxA 5.9 ppt 2 of 2 None covers it In treatment
No federal results for this stop. Disinfection byproduct, chlorine and fluoride levels are in Sheep Creek Water Company’s own annual report, which it must send you every year.
In the pipes
No lead and copper results on file with EPA for this utility.
At your tap
The last stretch is your own plumbing. A certified lab test is the only way to know what reaches your glass. Lead in your water: what to do
Tested and not found
Below EPA’s minimum reporting level in every sample taken from July 7, 2025 to Jan. 6, 2026. Not found means not measured above that level, which is not the same as zero.
All 27 compounds tested and not found
- 11Cl-PF3OUdS
- 4:2 FTS
- 6:2 FTS
- 8:2 FTS
- 9Cl-PF3ONS
- ADONA
- HFPO-DA (GenX)
- Lead
- Lithium
- NEtFOSAA
- NFDHA
- NMeFOSAA
- PFBA
- PFDA
- PFDoA
- PFEESA
- PFHpA
- PFHpS
- PFMBA
- PFMPA
- PFNA
- PFOA
- PFOS
- PFPeS
- PFTA
- PFTrDA
- PFUnA
Violations since 2016
No health-based violations on file with EPA since 2016. There is 1 monitoring or reporting violation: a sample missed, late or not reported.
What this report cannot tell you
- Levels of everything else. Federal bulk data carries results for PFAS, lithium, lead and copper, and violations for the rest. Nitrate, arsenic, disinfection byproducts and other levels are in Sheep Creek Water Company’s own annual report, which it must send you every year.
- Your own plumbing. Lead results are the 90th percentile across homes the utility samples. Your home’s service line, solder and fixtures decide yours. A certified lab test is the only way to know.
- Anything after the latest data. SDWIS data is from 2026 Q2; UCMR 5 samples are from July 7, 2025 to Jan. 6, 2026.
Other California utilities
- Los Angeles - City, Dept. of Water & Power3.9 million
- East Bay MUD1.4 million
- City of San Diego1.4 million
- San Jose Water1 million
- SFPUC City Distribution Division848,019
- Eastern Municipal WD666,581
- City of Fresno545,716
- City of Sacramento Main527,979
- Long Beach Utilities Department466,772
- Irvine Ranch Water District444,800
- City of Anaheim348,593
- Alameda County Water District344,000
Sources
- EPA UCMR 5 occurrence data, file of Aug. 27, 2026
- EPA SDWA bulk download (SDWIS federal data), 2026 Q2
- Limits and goals: each contaminant’s page, with its EPA source.
- How this page is built: methodology.