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SWT MAIN SYSTEM

Pennsylvania — Community Water System — PWSID: PA3390065

System Information

PWSIDPA3390065
System NameSWT MAIN SYSTEM
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region03
Serves SchoolNo
WholesalerNo
First ReportedFeb 12, 1979
Last ReportedDec 17, 2025

Location & Contact

StatePennsylvania
CityALLENTOWN
ZIP Code18104
Address4444 WALBERT AVE
OrganizationSWT MAIN SYSTEM
Phone610-398-0407

Population & Service

Population Served14,500
Service Connections6,284

Drinking Water Violations (535)

This water system has 535 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Oct 1, 2025 — Lead and Copper Rule MR No No — TT — Unaddressed — Lead and Copper Rule
Sep 1, 2024 Sep 30, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Sep 30, 2024 Surface Water Treatment Rule
Sep 1, 2024 Sep 30, 2024 Revised Total Coliform Rule MON No No — — — Resolved Sep 30, 2024 Revised Total Coliform Rule
Sep 1, 2024 Sep 30, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2024 Sep 30, 2024 Revised Total Coliform Rule MON No No — — — Resolved Sep 30, 2024 Revised Total Coliform Rule
Sep 1, 2024 Sep 30, 2024 Revised Total Coliform Rule MON No No — — — Resolved Sep 30, 2024 Revised Total Coliform Rule
Sep 1, 2024 Sep 30, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2024 Sep 30, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Sep 30, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2024 Sep 30, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Sep 30, 2024 Surface Water Treatment Rule
Sep 1, 2024 Sep 30, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Sep 30, 2024 Surface Water Treatment Rule
Jul 1, 2020 — Consumer Confidence Rule Other No No — — — Resolved Sep 28, 2020 Consumer Confidence Rule
Jul 1, 2020 — Consumer Confidence Rule Other No No — — — Resolved Sep 28, 2020 Consumer Confidence Rule
Mar 1, 2017 Mar 31, 2017 Groundwater Rule MR No Yes — — — Resolved Mar 31, 2017 Ground Water Rule
Mar 1, 2017 Mar 31, 2017 Groundwater Rule MR No Yes — — — Resolved Mar 31, 2017 Ground Water Rule
Jan 1, 2017 Dec 31, 2017 2,3,7,8-TCDD MR No No — 0.00000003 mg/L — Resolved Dec 31, 2017 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2017 2,3,7,8-TCDD MR No No — 0.00000003 mg/L — Resolved Dec 31, 2017 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2017 2,3,7,8-TCDD MR No No — 0.00000003 mg/L — Resolved Dec 31, 2017 Synthetic Organic Chemicals
Jan 1, 2017 Dec 31, 2017 2,3,7,8-TCDD MR No No — 0.00000003 mg/L — Resolved Dec 31, 2017 Synthetic Organic Chemicals
Sep 1, 2016 Sep 30, 2016 Surface Water Treatment Rule TT Yes No — — — Resolved Sep 30, 2016 Surface Water Treatment Rule
Sep 1, 2016 Sep 30, 2016 Surface Water Treatment Rule TT Yes No — — — Resolved Sep 30, 2016 Surface Water Treatment Rule
Sep 1, 2016 Sep 30, 2016 Surface Water Treatment Rule TT Yes No — — — Resolved Sep 30, 2016 Surface Water Treatment Rule
Sep 1, 2016 Sep 30, 2016 Surface Water Treatment Rule TT Yes No — — — Resolved Sep 30, 2016 Surface Water Treatment Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Jan 1, 2015 Mar 31, 2015 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Dec 1, 2014 Dec 31, 2014 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Dec 31, 2014 Total Coliform Rule
Dec 1, 2014 Dec 31, 2014 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Dec 31, 2014 Total Coliform Rule
Dec 1, 2014 Dec 31, 2014 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Dec 31, 2014 Total Coliform Rule
Dec 1, 2014 Dec 31, 2014 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Dec 31, 2014 Total Coliform Rule
Oct 1, 2014 Oct 31, 2014 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 31, 2014 Total Coliform Rule
Oct 1, 2014 Oct 31, 2014 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 31, 2014 Total Coliform Rule

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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