Waterford, CA water hardness

Tap water hardness
16mg/L
1.0gpg
Soft

Reported by Modesto Irrigation District · April 2025

CA typical
121 mg/L
EPA health violations since 2016
0
Data
Utility report

Tap water in Waterford has about 16 mg/L of hardness, which is 1.0 grains per gallon. On the USGS scale that counts as soft. The number comes from Modesto Irrigation District, dated April 2025.

Waterford on the hardness scale, with nearby cities
060120180240300360+CA typical 121Escalon: 28 mg/LEscalon 28Ripon: 28 mg/LRipon 28Modesto: 44 mg/LModesto 44West Modesto: 44 mg/LWest Modesto 44Salida: 44 mg/LSalida 44Ceres: 66 mg/LCeres 66Oakdale: 94 mg/LOakdale 94Turlock: 98 mg/LTurlock 98Denair: 118 mg/LDenair 118Riverbank: 196 mg/LRiverbank 196Waterford 16mg/L as calcium carbonate060120180240300360+CA 121Modesto: 44 mg/LModesto 44Ceres: 66 mg/LCeres 66Oakdale: 94 mg/LOakdale 94Turlock: 98 mg/LTurlock 98Denair: 118 mg/LDenair 118Riverbank: 196 mg/LRiverbank 19616 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

At 16 mg/L, Waterford is 105 mg/L below the typical California figure of 121. None of the 10 nearest cities we track has softer water. The range nearby runs from 28 mg/L in Escalon to 196 in Riverbank.

What 16 mg/L means at home

Soap and shampoo lather with very little product. Kettles and showerheads stay mostly free of white crust.

Some people notice that soap feels slow to rinse off in soft water. That slippery feel is normal and harmless.

Hardness is not a health problem, and EPA sets no limit for it. It is a matter of scale and soap.

What to do about it

Nothing, as far as hardness goes. At 16 mg/L a softener would have almost nothing to remove.

Carbon filter

If the water tastes of chlorine, a pitcher or faucet carbon filter takes care of that. It does not change hardness.

EPA record for Waterford's water system

City of Waterford · PWSID CA5010006

No health-based violations since 2016

Serves about 8,788 people from groundwater.

Health-based
0
Monitoring or reporting
0
Open now
0

EPA lists City of Waterford as the system serving Waterford. The hardness figure above comes from a different system's report, which TapWaterData uses for Waterford.

Health-based means a contaminant above its legal limit or a missed treatment step. Monitoring and reporting violations are late or missing tests and notices. Source: EPA ECHO, 2026Q3 export, violations with periods starting 2016 or later. Full EPA record.

Questions

Is Waterford water hard?

No. It measures about 16 mg/L (1.0 grains per gallon), which the USGS classes as soft.

What is the water hardness in Waterford in grains per gallon?

About 1.0 gpg. One grain per gallon equals 17.1 mg/L, so 16 mg/L divided by 17.1 gives 1.0.

Has the Waterford water system had EPA violations?

EPA records show no health-based violations for City of Waterford since 2016.

Nearby cities

All 515 cities in California

Hardness data: TapWaterData US Water Hardness (utility report, April 21, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.