Sunny Road Water System

What was found

What handles it

A certification covers specific claims, not a whole standard. Look for these claims on the certifier’s listing, not the box. Wording varies a little: NSF writes “Lead Reduction,” WQA just “Lead.”

• NSF/ANSI 53

  Claim: Arsenic (Pentavalent)<=50 ppb Reduction

  For: Arsenic

  Other certifiers’ wording: Arsenic (III) (50 ppb influent level)

• NSF/ANSI 58

  Claim: Arsenic (Pentavalent)<=50 ppb Reduction

  For: Arsenic

  Other certifiers’ wording: Arsenic (Pentavalent)<=300 ppb Reduction; Arsenic (V) (300 ppb influent level)

Hardness

Soft, 55 mg/L (3.2 grains per gallon), at its one sampling point, 2019 to 2025.

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

What this report can’t tell you

• Everything else. Arsenic, chromium (total), fluoride and nitrate results here are California’s own from 2020 on, with EPA’s national file for 2012 to 2019. Total trihalomethanes (TTHM) comes from EPA’s file alone, which ends in 2019. Sunny Road Water System’s own annual report, which it must send you every year, has newer results for those and 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 Jan. 15, 2020 to July 6, 2026; EPA’s compliance samples are from Jan. 26, 2015 to Jan. 26, 2015.

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 Jan. 15, 2019 to Jan. 22, 2025, read Oct. 10, 2026
• Limits and goals: each contaminant’s page, with its EPA source.
• How this page is built: methodology.

PWSID CA3901213. Rebuilt from EPA data on Oct. 18, 2026.