WaterVerge

Is Cochiti, NM Tap Water Safe to Drink?

Graded B+, with 11 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

2K residents served 2 water systems PWSID: 063500108
Overall Score
81 / 100
Violations
11 active
Last Updated
May 2026
Source
Groundwater
#32 of 163 in New Mexico Top 49% nationally
Native American
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
B+GRADE
Water Quality Grade
81/100
waterverge.com
B+ 81/100

Cochiti, NM — Water Quality Report

Cochiti's drinking water received a grade of B+ (81 out of 100), indicating good water quality. The city's 2 water systems serve approximately 1,650 residents using groundwater.

Lead levels were measured at 0.5 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 31 violations on record, including 10 health-based violations. 11 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Cochiti's water

Cochiti ranks #32 out of 163 cities in New Mexico for water quality, placing it above average in the state.

Cochiti relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.

As a small community water system, Cochiti may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

The system has seen 6 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
81 out of 100 Grade B+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
34/45
B
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.5 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
5/10
D
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Cochiti, NM water safe to drink?

Concerns Identified

Cochiti's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (81/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 1,650 residents using groundwater (wells).

11
Active Violations
0.5 ppb
Lead (90th %ile)
5 events
Disaster History

Recent water quality updates for Cochiti

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Cochiti's water quality assessment. Grade: B+ (81/100).

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Groundwater Rule.

Violation
1 drinking water violation recorded

Contaminants: Revised Total Coliform Rule.

Violation
1 drinking water violation recorded

Contaminants: Revised Total Coliform Rule.

Disaster
SEVERE STORMS, FLOODING, AND MUDSLIDES

Federal disaster declaration (FEMA DR-4152). Flood event — may have impacted local water infrastructure.

Disaster
FLOODING

Federal disaster declaration (FEMA DR-4079). Flood event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Cochiti's water supply.

Lead Within Limits
Detected: 0.5 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Cochiti's water system has 31 total violations on record, including 10 health-based violations. 11 remain unresolved. 6 violations were issued in the last 5 years.

TTMONMROtherMCL
Most recent violations:
Oct 2024 Groundwater Rule Open
Dec 2023 Revised Total Coliform Rule Resolved
Feb 2023 Revised Total Coliform Rule Resolved
May 2021 Revised Total Coliform Rule Resolved
Apr 2021 Revised Total Coliform Rule Resolved

Flood & environmental risk

Sandoval County has experienced 5 federally declared disasters since 1973. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Cochiti East Side Main Canal, Sile Main Canal (At Head), Santa Fe River Above Cochiti Lake, Cochiti Lake, Rio Grande Below Cochiti Dam.

SEVERE STORMS, FLOODING, AND MUDSLIDES
Flood FEMA DR-4152
FLOODING
Flood FEMA DR-4079
FLOODING
Flood FEMA DR-4047

Where does Cochiti's water come from?

Cochiti's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 1,650 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Cochiti East Side Main Canal (stream), Sile Main Canal (At Head) (stream), Santa Fe River Above Cochiti Lake (river), Cochiti Lake (lake), Rio Grande Below Cochiti Dam (river).

What Cochiti residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Cochiti's water.

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Monitor alerts during storms

Cochiti's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
0.5 ppb
EPA Action Level: 15 ppb · 3% of limit
Safe Level
Compliance Record

Violation summary

31
Total violations
10
Health-based
11
Active / unresolved
Oct 2024
Most recent violation
Compliance Record

Violations & advisories

31 Total
11 Active
10 Health-based
20 Resolved
Violations by category
Total Coliform Rule
11
Consumer Confidence Rule
6
Ground Water Rule
5
Revised Total Coliform Rule
4
Lead and Copper Rule
2
Oct 2024 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Jan 2021 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2020 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Feb 2016 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Oct 2015 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Jul 2013 Active
Consumer Confidence Rule
Other Violation 0
Jul 2013 Active
Consumer Confidence Rule
Other Violation 0
Feb 2013 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Feb 2013 Active
Groundwater Rule
Treatment Technique
Health-Based Health 0
Jul 2005 Active
Consumer Confidence Rule
Other Violation 0
Jul 2004 Active
Consumer Confidence Rule
Other Violation 0
Dec 2023 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Dec 2023
Feb 2023 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Feb 2023
May 2021 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved May 2021
Apr 2021 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Apr 2021
Sep 2015 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Sep 2015
Jul 2012 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 2012
Jan 2011 Resolved
Nitrate-Nitrite
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2011
Jan 2008 Resolved
TTHM
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jan 2008 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Showing 20 of 31 violations
Environmental Risk

Flood & disaster history

5
Declared disasters
Oct 2013
Most recent
Flood
Most common type

Sandoval County has experienced 5 federally declared disasters since 1973. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Oct 2013
SEVERE STORMS, FLOODING, AND MUDSLIDES
Flood FEMA #4152
Aug 2012
FLOODING
Flood FEMA #4079
Nov 2011
FLOODING
Flood FEMA #4047
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3229
May 1973
SEVERE STORMS, SNOW MELT & FLOODING
Flood FEMA #380

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.5 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 4.0 ppb from 1993 (4.5 ppb) to 2023 (0.5 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Native American
Population Served
1,650
Water Systems
2
Water Source

Where Cochiti's water comes from

Groundwater

Cochiti's drinking water is drawn from underground aquifers through wells.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.

Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.

The system is operated by native american ownership and serves approximately 1,650 people through 2 water systems.

Local Hydrology

Water bodies near Cochiti

Cochiti is located near 5 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Cochiti East Side Main Canal
stream
Sile Main Canal (At Head)
stream
Santa Fe River Above Cochiti Lake
river
Cochiti Lake
lake
Rio Grande Below Cochiti Dam
river
Infrastructure

Water systems serving Cochiti

System Name PWSID Population Source
Cochiti Pueblo 063500108 1,200 GW
Cochiti Lake 063568423 450 GW
Regional Comparison

How Cochiti compares

Full New Mexico rankings →

Cochiti's score of 81/100 is above the average of 44/100 among major New Mexico cities. It outscores 9 of 10 nearby cities.

Cochiti (this city)
81
Las Cruces
40.1
Santa Fe
35.7
Rio Rancho
83.8
Roswell
45.8
New Mexico avg
44
Service Area

ZIP codes served by Cochiti

The water systems serving Cochiti cover 1 ZIP code. Select any ZIP to see which water systems serve that area.

City Profile

About Cochiti, NM

Wikipedia →

Cochiti is a census-designated place (CDP) in Sandoval County, New Mexico, United States. The Pueblo of Cochiti is a federally recognized tribe of Pueblo people.

Economic Profile
$63,500
Median Income
$228,631
Median Home Value
3.7%
Unemployment
Community
31.7
Median Age
240
People / sq mi
13.8%
College Educated
89%
Homeownership
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Frequently asked questions

Is Cochiti, NM tap water safe to drink?

Cochiti's water quality earned a grade of B+ (81/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #32 out of 163 cities tested in New Mexico.

What contaminants are in Cochiti's water?

Lead was measured at 0.5 ppb (90th percentile). 31 violations are on record.

How is Cochiti's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Cochiti?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Cochiti's water come from?

Cochiti's water is sourced from Groundwater. The city has 2 water systems serving approximately 1,650 residents.

What health violations has Cochiti's water system had?

Cochiti has 10 health-based violations on record. The most recent violation was recorded in October 2024. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 11 violations remain unresolved.

Is Cochiti's groundwater at risk of contamination?

Cochiti uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 31 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Cochiti's water compare to other cities?

Cochiti ranks #32 out of 163 cities in New Mexico (better than 80% of state cities) and #7635 out of 15744 cities nationally (52th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.