Community Water System · PWS AZ0420026

Crescent Manor MHP

Tucson, Arizona 85705 - drinking water served from groundwater sources to 200 people, tracked in EPA SDWIS and UCMR5.

Compiled by PlainWater Editorial, Drinking Water Quality Editorial Team · May 15, 2026

200
People served: 181
EPA violations: 2
Health-based: Untested
UCMR5 result

The verdict

EPA records 181 drinking-water violations at Crescent Manor MHP, 1% of them health-based - above the Arizona per-system average.

181
Total EPA violations on record: 1%
Health-based (MCL / treatment failure): 200
People served by this system: N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Crescent Manor MHP

Crescent Manor MHP is a public/private-owned community water system that delivers drinking water to 200 residents in Tucson, Arizona (Pima County) through 138 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 181 total violations for this system , of which 2 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 148 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 30 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Arizona, EPA tracks 1,493 public water systems serving 7,322,166 people, with 228,944 cumulative violations and 15,663 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 153.3 violations. Statewide, 145 of 152 UCMR5-tested systems have reported PFAS detections (95.4%).

Crescent Manor MHP's 181 violations sit above the Arizona average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served

200

Total Violations

181

Health-Based Violations

Water Source

Groundwater

System Details

System Type: Community
Owner Type: Public/Private
Connections: 138
County: Pima
School/Daycare: No
MCL Violations: 2
Monitoring Violations: 148
Treatment Tech Violations: 0

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Lead and Copper Rule	MR	30	2025
Consumer Confidence Rule	Other	24	2016
Coliform (TCR)	MR	21	2013
Trichloroethylene	MR	17	2003
Revised Total Coliform Rule	MON	8	2022
Nitrate	MR	4	2005
Tetrachloroethylene	MR	3	2001
DICHLOROMETHANE	MR	2	2001
p-Dichlorobenzene	MR	2	2001
trans-1,2-Dichloroethylene	MR	2	2001
1,1,1-Trichloroethane	MR	2	2001
Carbon tetrachloride	MR	2	2001
1,1,2-Trichloroethane	MR	2	2001
Benzene	MR	2	2001
Styrene	MR	2	2001
Coliform (TCR)	MCL	2	2006
Public Notice	Other	2	2022
Gross Alpha, Excl. Radon and U	MR	2	1989
1,1-Dichloroethylene	MR	2	2001
Ethylbenzene	MR	2	2001
Toluene	MR	2	2001
o-Dichlorobenzene	MR	2	2001
CHLOROBENZENE	MR	2	2001
1,2-Dichloropropane	MR	2	2001
1,2-Dichloroethane	MR	2	2001
cis-1,2-Dichloroethylene	MR	2	2001
BHC-GAMMA	MR	1	1998
Toxaphene	MR	1	1998
Dalapon	MR	1	1998
Endothall	MR	1	1998

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Crescent Manor MHP.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID AZ0420026 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Arizona Drinking Water Authority

Arizona DEQ, Drinking Water Program is the primacy agency that licenses and inspects Crescent Manor MHP under EPA-delegated authority.

Open AZ regulator portal

Source: Arizona DEQ, Drinking Water Program

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest)	Contaminant	Category	Count	EPA Record
2025	Lead and Copper Rule	MR	30	SDWIS / AZ0420026 / 5000
2022	Revised Total Coliform Rule	MON	8	SDWIS / AZ0420026 / 8000
2022	Public Notice	Other	2	SDWIS / AZ0420026 / 7500
2018	Revised Total Coliform Rule	RPT	1	SDWIS / AZ0420026 / 8000
2016	Consumer Confidence Rule	Other	24	SDWIS / AZ0420026 / 7000
2013	Coliform (TCR)	MR	21	SDWIS / AZ0420026 / 3100
2006	Coliform (TCR)	MCL	2	SDWIS / AZ0420026 / 3100
2005	Nitrate	MR	4	SDWIS / AZ0420026 / 1040
2003	Trichloroethylene	MR	17	SDWIS / AZ0420026 / 2984
2001	Tetrachloroethylene	MR	3	SDWIS / AZ0420026 / 2987
2001	DICHLOROMETHANE	MR	2	SDWIS / AZ0420026 / 2964
2001	p-Dichlorobenzene	MR	2	SDWIS / AZ0420026 / 2969
2001	trans-1,2-Dichloroethylene	MR	2	SDWIS / AZ0420026 / 2979
2001	1,1,1-Trichloroethane	MR	2	SDWIS / AZ0420026 / 2981
2001	Carbon tetrachloride	MR	2	SDWIS / AZ0420026 / 2982

How Crescent Manor MHP Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric	Crescent Manor MHP	Arizona avg	Federal benchmark
Total violations	181	153.3	SDWA compliance, any non-zero count is a recorded breach
Health-based violations	2	10.5	Indicates a contaminant exceeded a federal MCL
PFAS detection	None	95.4%	EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served	200	4,904	Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,493 regulated public water systems in Arizona.

Federal MCL reference, Safe Drinking Water Act thresholds ▼

Contaminant	Federal MCL / Action Level	Note
Lead	0 mg/L (Action Level: 0.015 mg/L)	Lead and Copper Rule treatment technique
Arsenic	0.010 mg/L (10 ppb)	Health-based MCL since 2006
Total Coliform	Treatment technique (RTCR)	Indicator organism, monitoring trigger
PFOA / PFOS (PFAS)	4.0 ppt each (final 2024 rule)	Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N)	10 mg/L	Acute health risk for infants

Frequently Asked Questions

Is Crescent Manor MHP water safe to drink? ▼

Crescent Manor MHP (PWS ID: AZ0420026) has 181 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 200 people using Groundwater sources.

How many people does Crescent Manor MHP serve? ▼

Crescent Manor MHP serves 200 people in Tucson, Arizona. It is a Public/Private-owned system using Groundwater water sources with 138 service connections.

What type of violations does Crescent Manor MHP have? ▼

Crescent Manor MHP has 181 total violations: 2 health-based violations (MCL exceedances or treatment failures), 148 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in Crescent Manor MHP water? ▼

No PFAS testing data is available for Crescent Manor MHP under the EPA's UCMR5 monitoring program.

What water source does Crescent Manor MHP use? ▼

Crescent Manor MHP uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.

Where does this data come from? ▼

All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.