Public water system · PA3390345

Active

Nwlsd High School

At a glance

Nwlsd High School (PWSID PA3390345) is an active non-transient non-community water system in Lehigh County, Pennsylvania. It reports serving 821 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as under public/private ownership. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2020.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

821

Service connections

Primary source

Groundwater

System type

NTNCWS

Non-transient non-community water system

System record

PWSIDPA3390345

System typeNon-transient non-community water system

Activity statusActive

Population served821

Service connections1

Primary water sourceGroundwater

Owner typePublic/private partnership

Primacy agencyPA state drinking water program

City served—

StatePennsylvania

ZIP—

CountyLehigh County

How does Nwlsd High School compare with other water systems in Lehigh County?

By EPA's size categories, Nwlsd High School is a small system (501 to 3,300 people). Lehigh County has 197 active public water systems. Its population served is about 45% below the county average of 1,486 people per system, and accounts for 0.3% of the 292,806 people reported by systems filed under the county. Across Pennsylvania, the 7,217 active systems average 1,741 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Nwlsd High School is about twice 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. Pennsylvania has 1,026 active non-transient non-community water systems, 14% of the state's 7,217 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,632 Pennsylvania systems (92%) list groundwater as their primary source.

Who owns and regulates Nwlsd High School?

EPA lists Nwlsd High School as under public/private ownership. The PA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 19 of the 197 active systems in Lehigh County (9.6%) are also under public/private ownership.

Does Nwlsd High School have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2020. The violations listed here began between April 1994 and October 2020. By type: 8 monitoring and reporting, 2 public notice, recordkeeping or other and 2 monitoring. The contaminant or rule involved most often is Public Notice (2 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
2020-10-11	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2020-10-11	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2019-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2019-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2017-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2017-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2016-05-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2016-04-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2015-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
2009-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Chlorinecode 0999	No	Resolved
1994-04-01	Monitoring and reportingMonitoring, Regular · code 03	cis-1,2-Dichloroethylenecode 2380	No	Resolved
1994-04-01	Monitoring and reportingMonitoring, Regular · code 03	1,2-Dichloropropanecode 2983	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.

Nwlsd High School: frequently asked questions

Who runs Nwlsd High School?

Nwlsd High School (PWSID PA3390345) is a non-transient non-community water system under public/private ownership. It is regulated by the PA state drinking water program.

How many people does Nwlsd High School serve?

Nwlsd High School reports serving 821 people through 1 service connection in Lehigh County, Pennsylvania.

Where does Nwlsd High 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 Nwlsd High School have any drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2020. 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 Nwlsd High 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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2020. For current results, consult EPA ECHO, or the PA state drinking water program.

Where can I find Nwlsd High School's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Nwlsd High 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 Lehigh County

Water system	County	Population served	Type	Source
Lca Allentown Division	Lehigh	118,000	Community	Surface water
Lca Wlsa Central Division	Lehigh	47,693	Community	Purchased surface water
Swt Main System	Lehigh	14,500	Community	Purchased surface water
Emmaus Borough Public Water	Lehigh	14,000	Community	Groundwater
Whitehall Twp Authority	Lehigh	13,063	Community	Groundwater
Salisbury Twp Water System	Lehigh	8,522	Community	Purchased 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, “Nwlsd High School, PWSID PA3390345, Pennsylvania”, https://aquacensus.com/water-systems/pennsylvania/nwlsd-high-school-pa3390345 (data as of October 1, 2026).