Hard water in Ruidoso, NM

Tap water hardness
169mg/L
9.9gpg
Hard

Reported by Ruidoso Water System · December 2024

NM typical
137 mg/L
EPA health violations since 2016
7
Softener for 3 people
24k grain
Data
Utility report

Ruidoso water measures 169 mg/L (9.9 gpg) of hardness, hard by USGS standards. The number comes from Ruidoso Water System, dated December 2024.

Ruidoso on the hardness scale, with nearby cities
060120180240300360+NM typical 137Santa Fe: 70 mg/LSanta Fe 70Rio Rancho: 107 mg/LRio Rancho 107South Valley: 137 mg/LSouth Valley 137Albuquerque: 137 mg/LAlbuquerque 137Los Ranchos de Albuquerque: 137 mg/LLos Ranchos de Albuquerque 137North Valley: 137 mg/LNorth Valley 137Las Vegas: 140 mg/LLas Vegas 140Las Cruces: 202 mg/LLas Cruces 202Clovis: 258 mg/LClovis 258Alamogordo: 383 mg/LAlamogordo 383Ruidoso 169mg/L as calcium carbonate060120180240300360+NM 137South Valley: 137 mg/LSouth Vall. 137Albuquerque: 137 mg/LAlbuquerque 137Los Ranchos de Albuquerque: 137 mg/LLos Rancho. 137North Valley: 137 mg/LNorth Vall. 137Las Cruces: 202 mg/LLas Cruces 202Alamogordo: 383 mg/LAlamogordo 383169 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

Ruidoso sits 32 mg/L above the typical New Mexico figure of 137. Of the 10 nearest cities we track, 7 have softer water and 3 have harder. The range nearby runs from 70 mg/L in Santa Fe to 383 in Alamogordo.

What 169 mg/L means at home

Expect white crust on faucets and showerheads, plus spots on dishes that come out of the dishwasher.

Kettles collect scale quickly. Water heaters build up sediment at the bottom of the tank, which makes them work harder over time.

Soap and detergent need a little more to lather, and soap scum shows up in the tub.

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

At 169 mg/L most of the trouble is scale, and only a few things deal with it.

Ion-exchange water softener

The standard whole-house fix. It swaps calcium and magnesium for sodium or potassium and needs salt plus a drain. Size it with the calculator below.

Salt-free conditioner

No salt and no drain line. It changes how minerals form scale instead of removing them, so water still tests hard.

Reverse osmosis or carbon filter

Under-sink reverse osmosis removes minerals from drinking water only. Plain carbon filters improve taste but do not soften.

Softener size for Ruidoso

3 people × 75 gallons a day × 9.9 gpg = 2,223 grains a day. A 24,000-grain unit regenerates about every 10 days.

Size it for your household

EPA record for Ruidoso's water system

Ruidoso Water System · PWSID NM3513114

7 health-based violations since 2016

Serves about 15,947 people from surface water.

Health-based
7
Monitoring or reporting
7
Open now
1
20162017201820192020202120222023202420252026Total trihalomethanes (TTHM)Total organic carbon removalSurface Water Treatment Rule'16'18'20'22'24'26Total trihalomethanes (TTHM)Total organic carbon removalSurface Water Treatment Rule
Each dot is one health-based violation, placed at the start of its compliance period.
Contaminant or ruleViolationsPeriodStatus
Total trihalomethanes (TTHM)a disinfection byproduct42020–2021Resolved
Total organic carbon removaltreatment requirement22020Resolved
Surface Water Treatment Rulefiltration and disinfection12018Resolved

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 Ruidoso water hard?

Yes. It measures about 169 mg/L (9.9 grains per gallon), which the USGS classes as hard.

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

About 9.9 gpg. One grain per gallon equals 17.1 mg/L, so 169 mg/L divided by 17.1 gives 9.9.

What size water softener do I need in Ruidoso?

For 3 people using 75 gallons each per day, 9.9 gpg works out to about 2,223 grains a day. A 24,000-grain softener covers that with a regeneration about every 10 days.

Has the Ruidoso water system had EPA violations?

EPA records show 7 health-based violations for Ruidoso Water System since 2016, involving Total trihalomethanes (TTHM), Total organic carbon removal, Surface Water Treatment Rule. There were also 7 monitoring or reporting violations, which are about late or missing tests and notices.

Nearby cities

All 13 cities in New Mexico

Hardness data: TapWaterData US Water Hardness (utility report, December 1, 2024), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.