Is Crows Landing, CA tap water safe?
The short answer
2 of the 2 utilities serving Crows Landing have a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and California’s records: City of Newman - Water Department and Crows Landing Comm Svc District.
City of Newman - Water Department, which serves the most people here, has 1 result above the legal limit, 1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Nitrate at 11.3 ppm, above the legal limit.
The water from City of Newman - Water Department is very hard, typically 390 mg/L (22.8 grains per gallon). How California’s water compares.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Crows Landing’s ZIP codes, from EPA’s estimates.
- Open report
City of Newman - Water Department
California · serves 12,389 people · about 100 in Crows Landing
1 result above the legal limit, 1 result above the health goal and 1 result above EPA’s health benchmark. The worst: Nitrate at 11.3 ppm, above the legal limit. Hardness: very hard, typically 390 mg/L (22.8 grains per gallon).
1 health-based violation since 2016
- Open report
Crows Landing Comm Svc District
California · serves 500 people · under 100 in Crows Landing
Nothing in its records is above a health goal. Hardness: very hard, typically 300 mg/L (17.5 grains per gallon).
1 health-based violation since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in City of Newman - Water Department’s water, which serves the most people here. Another utility’s report names what handles its own results.
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Countertop reverse osmosis
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 4, 2026
Certified for: Nitrate
Aquasana SmartFlow Reverse Osmosis (AQ-SFRO2)
Under-sink reverse osmosis
- WQA listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 58NSF/ANSI 401checked Oct. 9, 2026
Certified for: Nitrate
Culligan 10-Cup Pitcher with ZeroWater Technology (ZEROP10)
Pitcher
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 9, 2026
Certified for: Nitrate
Water testing near Crows Landing
The 3 labs California certifies closest to Crows Landing, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Certified Laboratories - Turlock
Turlock, CA · about 15 miles
Certified for bacteria
Microbac Laboratories, Inc. - Turlock
Turlock, CA · about 16 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, radioactivity
Institute of Environmental Health, Inc. dba IEH-JL Analytical
Modesto, CA · about 23 miles
Certified for bacteria, nitrate, minerals and other inorganics
Which ZIP codes are in Crows Landing: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: California State Water Resources Control Board, ELAP accredited laboratories and their fields of accreditation; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Crows Landing
Other towns in Stanislaus County with a page of their own.
What to do next
- Read City of Newman - Water Department’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for NitrateRanked by certification and what they cost over five years.The best reverse osmosis systems, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water