Alto Tap Water Quality Report
Limited testing on file โ only PFAS results from EPA's UCMR 5 for ALTO LAKES WATER AND SANITATION DISTRICT. No other contaminant results are on file for ALTO LAKES WATER AND SANITATION DISTRICT; check its latest Consumer Confidence Report for its current test results.
Water system
ALTO LAKES WATER AND SANITATION DISTRICT
6 other systems also serve parts of Alto. 1 other system is listed for Alto. See their figures
People Served
3,406
Health-based violations since 2020
0
ALTO LAKES WATER AND SANITATION DISTRICT. EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
Latest sample on file
Aug 2024 ยท ALTO LAKES WATER AND SANITATION DISTRICT
Utilities publish newer results in their annual water quality report (Consumer Confidence Report).
Is Alto Tap Water Safe to Drink?
Only PFAS results from EPA's UCMR 5 are on file for Alto's own water system, so everything else listed below has no result behind it. Testing your own water is the way to find out what your tap is actually delivering.
ALTO LAKES WATER AND SANITATION DISTRICT, Alto's water system, serves 3,406 people. 6 other systems also serve parts of Alto. 1 other system is listed for Alto. Each system's results are listed under its own name, never added to ALTO LAKES WATER AND SANITATION DISTRICT's. Water quality testing is conducted regularly and reported to the EPA. The latest sample on file for ALTO LAKES WATER AND SANITATION DISTRICT is from Aug 2024.
In EPA's 2023โ2026 UCMR 5 testing, ALTO LAKES WATER AND SANITATION DISTRICT measured lithium at up to 65.2 ยตg/L, which EPA counts as above its health reference level of 10 ยตg/L. That level is a screening value EPA uses to decide what to study further, not a legal limit, and this result does not change this page's water-quality summary.
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in New Mexico
Alto Water Service Areas

What these numbers actually mean for Alto, NM
We read Alto, NMโs published record and send you a short report โ which findings warrant a decision, which to ignore, and what to do about it. Including when the answer is nothing.
- 23 contaminants listed, only PFAS results from EPA's UCMR 5 on file
- 23 PFAS compounds on record
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General-Purpose Water Filters for Alto
Alto's results show no result above EPA's health goals or legal limits, so these are general-purpose NSF/ANSI 53 certified filters, not chosen for any contaminant.

Pentair Residential Filtration, LLC
Everpure Residential H-300-NXT
NSF Certified:
Capacity
3001 gal
Filter Life
10 mo
Flow Rate
0.5 gpm
Removes 5 contaminants:

Whirlpool Corporation
W11256135
NSF Certified:
Capacity
1001 gal
Filter Life
3 mo
Flow Rate
0.7 gpm
Removes 19 contaminants:
+14 more
Benzene, Carbofuran, Chlorine (Free), Chlorine (Total), Chlorine Dioxide, Chlorobenzene, Cryptosporidium, Ethylbenzene, Lead, Mercury, Metolachlor, Tetrachloroethylene, Toxaphene, Turbidity

Whirlpool Corporation
W11569861
NSF Certified:
Capacity
1001 gal
Filter Life
3 mo
Flow Rate
0.52 gpm
Removes 22 contaminants:
+17 more
Atrazine, Benzene, Carbofuran, Chlorine (Free), Chlorine (Total), Chlorine Dioxide, Chlorobenzene, Cryptosporidium, Ethylbenzene, Lead, Mercury, Metolachlor, Styrene, Tetrachloroethylene, Toxaphene, Trichloroethylene, Turbidity

Santevia
Bath Filter
NSF Certified:
Flow Rate
0.36 gpm
Highlights:
- Organic cotton design reduces plastic used in construction
- Affordable upfront & ongoing cost
- The only bath filter that removed 100% chlorine with โnormalโ faster faucet flow
Removes 1 contaminants:
Test Your Water Quality
Professional laboratory testing provides accurate, detailed analysis of your drinking water.

SimpleLab
Advanced Home Water Test
$269
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.

Tap Score
Advanced Microplastics Test
$829
Cutting-edge testing for microplastics particles in drinking water using advanced laboratory techniques.

Tap Score
Haloacetic Acids (HAA9) Test
$275
Tests for disinfection byproducts formed when chlorine reacts with organic matter in water treatment.
What Alto's water readings can explain
We publish a city-level hardness figure for Alto, resolved from its water systems where they report one and estimated from county sampling where they do not. Each page starts with the hot-tap and cold-tap check, then shows what your own water system reported.
On a private well near Alto? Public-water results do not apply to private wells. See Lincoln County well water testing and USGS risk data โ modeled arsenic, nitrate, and the tests to run.
Water softener cost and installation in Alto
Alto's tap water has an estimated 27.5 grains per gallon (471.0 mg/L, county sampling in Lincoln County) โ very hard on the USGS scale, the range where scale on fixtures and appliances is the usual complaint.
Water softener cost for an estimated 27.5 gpg water in Alto โ equipment and local installation labour for your ZIP code, with the sizing arithmetic shown in full. For the national picture first, read what a water softener costs โ equipment, installation labour and ten-year ownership, each separated out. For New Mexico as a whole, read water softener cost in New Mexico โ priced against the plumber wage published for the state.
Frequently Asked Questions About Alto Tap Water
Limited testing on file โ only PFAS results from EPA's UCMR 5 for ALTO LAKES WATER AND SANITATION DISTRICT. No other contaminant results are on file for ALTO LAKES WATER AND SANITATION DISTRICT; check its latest Consumer Confidence Report for its current test results.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach ALTO LAKES WATER AND SANITATION DISTRICT. For a problem with your water now (discolored water, no water, low pressure, a leak), contact ALTO LAKES WATER AND SANITATION DISTRICT directly.
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