City water profile
Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Arroyo Seco, New Mexico.
Median indexed hardness
186PPM
2 indexed ZIPs
Range 182.5–189 PPM
City summary
Arroyo Seco has 2 published ZIP profiles across Taos County. The indexed median is 186 PPM, compared with 228 PPM across New Mexico.
Among the 160 New Mexicocities with an indexed median, Arroyo Seco ranks #114from highest to lowest. Across all 195 state ZIP profiles, available estimates run from 74.2to 688.5 PPM.
The 182.5–189 PPM range shows how much the available ZIP estimates vary within the city label.
Hardness distribution
2 of 2 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.
Evidence quality
Confidence labels
Observation window: Oct 25, 2016 to Apr 22, 2026.
ZIP directory
Open a ZIP for site-level provenance and measurements.
Public water systems
PWSID NM3505529
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID NM3522329
The system names this served city; Census place overlap links the city to this ZCTA.
Compliance history
No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.
| Record | System | Period | Status |
|---|---|---|---|
| Lead and Copper Rule | NM3505529 | Oct 1, 2025 | Unaddressed |
| Lead and Copper Rule | NM3522329 | Oct 1, 2025 | Unaddressed |
| Consumer Confidence Rule | NM3505529 | Jul 1, 2025 | Resolved |
| LEAD AND COPPER RULE REVISIONS | NM3505529 | Oct 17, 2024 | Resolved |
| LEAD AND COPPER RULE REVISIONS | NM3505529 | Oct 17, 2024 | Resolved · health-based |
| Consumer Confidence Rule | NM3505529 | Oct 1, 2024 | Resolved |
| Consumer Confidence Rule | NM3505529 | Jul 1, 2024 | Resolved |
| Consumer Confidence Rule | NM3522329 | Jul 1, 2024 | Resolved |
| TTHM | NM3505529 | Sep 1, 2022 | Archived |
| Total Haloacetic Acids (HAA5) | NM3505529 | Sep 1, 2022 | Archived |
Practical next steps
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Questions people ask
The indexed city median is 186 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.
Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.
Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.