Public water system · TX1500126
ActiveDeerhaven Wcid
At a glance
Deerhaven Wcid (PWSID TX1500126) is an active community water system in Llano County, Texas. It reports serving 336 people through 112 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in June 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
336
Service connections
112
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Deerhaven Wcid compare with other water systems in Llano County?
By EPA's size categories, Deerhaven Wcid is a very small system (500 people or fewer). Llano County has 22 active public water systems. Its population served is well below the county average of 1,755 people per system, and accounts for 0.9% of the 38,598 people reported by systems filed under the county. Across Texas, the 7,078 active systems average 4,789 people each. Nationally, the average active community water system reports serving 6,703 people, so Deerhaven Wcid 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. Texas has 4,594 active community water systems, 65% of the state's 7,078 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 1,192 Texas systems (17%) list purchased surface water as their primary source.
Who owns and regulates Deerhaven Wcid?
EPA lists Deerhaven Wcid as owned by a local government. The TX state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 9 of the 22 active systems in Llano County (41%) are also owned by a local government.
Does Deerhaven Wcid have drinking water violations?
Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in June 2021. The violations listed here began between October 2018 and June 2021. By type: 7 contaminant level above the legal limit, 3 public notice, recordkeeping or other and 2 monitoring and reporting. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (5 of them). EPA lists 12 as resolved. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2021-06-08 | Monitoring and reportingFailure Submit IDSE/Subpart V Plan Rpt · code 35 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2021-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2019-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2019-06-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2019-06-11 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2019-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2019-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2019-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2019-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2018-11-16 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2018-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2018-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | 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.
Deerhaven Wcid: frequently asked questions
Who runs Deerhaven Wcid?
Deerhaven Wcid (PWSID TX1500126) is a community water system owned by a local government. It is regulated by the TX state drinking water program.
How many people does Deerhaven Wcid serve?
Deerhaven Wcid reports serving 336 people through 112 service connections in Llano County, Texas.
Where does Deerhaven Wcid get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Deerhaven Wcid have any drinking water violations?
Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in June 2021. 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 Deerhaven Wcid'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, 7 are health-based, and the most recent began in June 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the TX state drinking water program.
Where can I find Deerhaven Wcid's water quality report?
As a community water system, Deerhaven Wcid 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 Llano County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Kingsland WSC | Llano | 12,975 | Community | Surface water |
| City of Horseshoe Bay | Llano | 12,729 | Community | Surface water |
| City of Llano | Llano | 3,352 | Community | Surface water |
| Lake Buchanan | Llano | 2,484 | Community | Surface water |
| Tpwd Enchanted Rock Sna | Llano | 885 | Transient non-community | Groundwater |
| Camp Longhorn Main Camp | Llano | 800 | Transient non-community | Surface water |
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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, “Deerhaven Wcid, PWSID TX1500126, Texas”, https://aquacensus.com/water-systems/texas/deerhaven-wcid-tx1500126 (data as of October 1, 2026).