Public water system · AZ0408701
ActiveKatherine Landing Dwtp
At a glance
Katherine Landing Dwtp (PWSID AZ0408701) is an active community water system in Mohave County, Arizona. It reports serving 1,300 people through 41 service connections. Its primary water source is surface water, and EPA lists it as owned by the federal government. Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in January 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,300
Service connections
41
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Katherine Landing Dwtp compare with other water systems in Mohave County?
By EPA's size categories, Katherine Landing Dwtp is a small system (501 to 3,300 people). Mohave County has 119 active public water systems. Its population served is about 33% below the county average of 1,948 people per system, and accounts for 0.6% of the 231,847 people reported by systems filed under the county. Across Arizona, the 1,769 active systems average 4,369 people each. Nationally, the average active community water system reports serving 6,703 people, so Katherine Landing Dwtp is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Arizona has 936 active community water systems, 53% of the state's 1,769 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 61 Arizona systems (3.4%) list surface water as their primary source.
Who owns and regulates Katherine Landing Dwtp?
EPA lists Katherine Landing Dwtp as owned by the federal government. The AZ state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 5 of the 119 active systems in Mohave County (4.2%) are also owned by the federal government.
Does Katherine Landing Dwtp have drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in January 2026. The violations listed here began between May 2024 and January 2026. By type: 4 contaminant level above the legal limit, 3 monitoring and reporting, 3 public notice, recordkeeping or other, 1 monitoring and 1 reporting. The contaminant or rule involved most often is Haloacetic acids (HAA5) (6 of them). EPA lists 11 as resolved and 1 as archived. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2026-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Archived |
| 2025-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2025-05-01 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-04-01 | Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2025-01-31 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2025-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2024-12-02 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2024-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2024-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2024-06-30 | Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2024-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2024-05-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Katherine Landing Dwtp: frequently asked questions
Who runs Katherine Landing Dwtp?
Katherine Landing Dwtp (PWSID AZ0408701) is a community water system owned by the federal government. It is regulated by the AZ state drinking water program.
How many people does Katherine Landing Dwtp serve?
Katherine Landing Dwtp reports serving 1,300 people through 41 service connections in Mohave County, Arizona.
Where does Katherine Landing Dwtp get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Katherine Landing Dwtp have any drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in January 2026. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Katherine Landing Dwtp's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in January 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the AZ state drinking water program.
Where can I find Katherine Landing Dwtp's water quality report?
As a community water system, Katherine Landing Dwtp must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Mohave County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Lake Havasu City of | Mohave | 54,610 | Community | Groundwater |
| Kingman Municipal Water | Mohave | 45,000 | Community | Groundwater |
| Bullhead City Mohave | Mohave | 36,330 | Community | Groundwater |
| Bermuda Water Company Inc. | Mohave | 25,000 | Community | Groundwater |
| Valley Pioneers Water Company Inc. | Mohave | 6,063 | Community | Groundwater |
| North Mohave Valley | Mohave | 5,190 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Katherine Landing Dwtp, PWSID AZ0408701, Arizona”, https://aquacensus.com/water-systems/arizona/katherine-landing-dwtp-az0408701 (data as of October 1, 2026).