Graeagle Water Company
What EPA’s and California’s records show in this utility’s water: nitrate, arsenic and other regulated chemicals; lead and copper; and violations since 2016, with the certification that handles each result.
- Serves
- 737 people
- Connections
- 944
- Water source
- Surface water
- Based in
- Graeagle, CA
- County
- Plumas
- Owner
- Private
- Hardness
- Soft
The ZIP code it serves
The short answer
1 result is above the limit’s level with no violation recorded. The worst: Haloacetic acids (HAA5), above the limit’s level, no violation. No health-based violations on file since 2016.
What was found
Haloacetic acids (HAA5), total trihalomethanes (TTHM), arsenic, chromium (total), fluoride and nitrate: California’s own results, samples taken from Feb. 4, 2020 to June 9, 2026, with EPA’s 2012 to 2019 file for earlier years.
Above the limit’s level, no violation recorded1
Haloacetic acids (HAA5)
Forms or is added in treatment
63ppb
Highest yearly average, 2020 to 2026
2026 average: 59 ppb
Averaged by year, the highest was 63 ppb, in 2022, above EPA’s legal limit of 60 ppb. Its highest single sample was 87 ppb. In 2026, the latest year on file, its two samples averaged 59 ppb. EPA judges this limit on running averages at each sampling point, and recorded no violation for haloacetic acids (HAA5) at this utility since 2020. Results like these with no violation often include water sampled before treatment or blending; the utility’s annual report says what reaches the tap. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 25.3 ppb, in 2015.
What handles it
No certification claim covers this compound yet.
Below EPA’s limits1
Total trihalomethanes (TTHM)
Forms or is added in treatment
48.3ppb
Highest yearly average, 2020 to 2026
2026 average: 47.5 ppb
Averaged by year, the highest was 48.3 ppb, in 2025, below EPA’s legal limit of 80 ppb. Its highest single sample was 62 ppb. In 2026, the latest year on file, its two samples averaged 47.5 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 46.1 ppb, in 2015.
What handles it
- NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
- NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”
5 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
- Arsenic
- Chromium (total)
- Fluoride
- Lead
- Nitrate
Hardness
Soft, 42 mg/L (2.4 grains per gallon), at its one sampling point, in 2024.
Hardness is calcium and magnesium. EPA sets no limit for it: it shows up as scale on fixtures and in water heaters, and as soap that won’t lather. USGS calls water above 60 mg/L moderately hard, above 120 hard and above 180 very hard.
Violations since 2016
No health-based violations on file with EPA since 2016.
What this report can’t tell you
Everything else. Haloacetic acids (HAA5), total trihalomethanes (TTHM), arsenic, chromium (total), fluoride and nitrate results here are California’s own from 2020 on, with EPA’s national file for 2012 to 2019. Graeagle Water Company’s own annual report, which it must send you every year, has the contaminants this page does not show.
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.
What it means for your health. This page reports what the records show and EPA’s limits and goals; it is not medical advice. If you are worried about a health effect, talk to a doctor or your local health department.
Anything after the latest data. SDWIS data is from 2026 Q3; UCMR 5 didn’t sample this utility; California’s results run from Feb. 4, 2020 to June 9, 2026.
Testing your own tap
The 3 labs California certifies closest to the area Graeagle Water Company serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Cranmer Engineering, Inc.
Grass Valley, CA · about 45 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics
SGS Silver State Analytical Lab - Reno
Reno, NV · about 53 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, radioactivity
Fruit Growers Laboratory, Inc.
Chico, CA · about 63 miles
Certified for bacteria
Sources
- EPA UCMR 5 occurrence data, file of Oct. 15, 2026
- EPA SDWA bulk download (SDWIS federal data), 2026 Q3
- California State Water Resources Control Board, Division of Drinking Water, results from Jan. 1, 2020 to July 17, 2026, read Oct. 8, 2026
- EPA Six-Year Review 4 compliance monitoring data, 2012 to 2019, file of Feb. 5, 2024
- Certified labs: California State Water Resources Control Board, ELAP accredited laboratories and their fields of accreditation, read Oct. 17, 2026; distances from the Census 2020 ZIP code tabulation area gazetteer
- Hardness: California State Water Resources Control Board, Division of Drinking Water, results from Aug. 13, 2024 to Aug. 20, 2024, read Oct. 10, 2026
- Limits and goals: each contaminant’s page, with its EPA source.
- How this page is built: methodology.
PWSID CA3210005. Rebuilt from EPA data on Oct. 18, 2026.
What to do next
- Read up on Haloacetic acids (HAA5)What each one does to health, where it comes from, and the certification claim that addresses it.About Haloacetic acids (HAA5)
- Get the utility’s own reportGraeagle Water Company must send you a water quality report every year. It covers contaminants this page does not show.How to read it
- Test your own tap for leadYour service line, solder and fixtures decide the lead at your faucet, not the utility’s average.Lead in your water: what to do
- Decide if you want a filter at allA filter for taste or chlorine is a preference, not a need. The standards say what each kind can do.NSF/ANSI standards, decoded