Public water system · DE0000136
ActiveHartly Elementary School
At a glance
Hartly Elementary School (PWSID DE0000136) is an active non-transient non-community water system in Kent County, Delaware. It reports serving 375 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 9 violations for this system; none is health-based, and the most recent began in October 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
375
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Hartly Elementary School compare with other water systems in Kent County?
By EPA's size categories, Hartly Elementary School is a very small system (500 people or fewer). Kent County has 136 active public water systems. Its population served is well below the county average of 1,201 people per system, and accounts for 0.2% of the 163,362 people reported by systems filed under the county. Across Delaware, the 494 active systems average 2,238 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Hartly Elementary School is about 13% below that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Delaware has 82 active non-transient non-community water systems, 17% of the state's 494 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 459 Delaware systems (93%) list groundwater as their primary source.
Who owns and regulates Hartly Elementary School?
EPA lists Hartly Elementary School as privately owned. The DE state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 118 of the 136 active systems in Kent County (87%) are also privately owned.
Does Hartly Elementary School have drinking water violations?
EPA's records list 9 violations for this system; none is health-based, and the most recent began in October 2018. The violations listed here began between July 1993 and October 2018. By type: 8 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Lead and Copper Rule (8 of them). EPA lists 7 as resolved and 2 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2018-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2012-06-20 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2010-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2003-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2002-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1994-01-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1994-01-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 1993-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1993-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Unaddressed |
All 9 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.
Hartly Elementary School: frequently asked questions
Who runs Hartly Elementary School?
Hartly Elementary School (PWSID DE0000136) is a non-transient non-community water system privately owned. It is regulated by the DE state drinking water program.
How many people does Hartly Elementary School serve?
Hartly Elementary School reports serving 375 people through 1 service connection in Kent County, Delaware.
Where does Hartly Elementary School get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Hartly Elementary School have any drinking water violations?
EPA's records list 9 violations for this system; none is health-based, and the most recent began in October 2018. 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 Hartly Elementary School'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. EPA's records list 9 violations for this system; none is health-based, and the most recent began in October 2018. For current results, consult EPA ECHO, or the DE state drinking water program.
Where can I find Hartly Elementary School's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Hartly Elementary School is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Kent County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Dover Water Department | Kent | 39,491 | Community | Groundwater |
| Camden Pump District | Kent | 17,208 | Community | Groundwater |
| Garrison Lake Pump District | Kent | 17,148 | Community | Groundwater |
| Smyrna Water Department | Kent | 11,813 | Community | Groundwater |
| Dover Air Force Base | Kent | 11,000 | Community | Groundwater |
| Milford Water Department | Kent | 9,800 | 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, “Hartly Elementary School, PWSID DE0000136, Delaware”, https://aquacensus.com/water-systems/delaware/hartly-elementary-school-de0000136 (data as of October 1, 2026).