Public water system record
SWT Main System
Serves an area of Lehigh County, PA that includes Cetronia · 14,500 people served
Federal records show no health-based violations and 7 monitoring/reporting issues for SWT Main System in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 7
Key facts
- SWT Main System draws water from 11 wells.
- Record on file since 1980, with 23 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 4,781 unknown out of 6,109 service lines.
Check whether SWT Main System serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2025 | Resolved |
|
Chlorine
Monitoring and reporting
|
Sep 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2020 | Resolved |
|
Groundwater Rule
Monitoring and reporting
|
Mar 1, 2017 | Resolved |
|
2,3,7,8-TCDD
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
Full record since 1980
EPA's records for SWT Main System go back to 1980. Before October 19, 2016 they list 23 health-based violations (23 resolved) and 132 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 57 |
| 1990s | 1 | 0 |
| 2000s | 15 | 10 |
| 2010 to October 18, 2016 | 7 | 65 |
| October 19, 2016 to 2019 | 0 | 2 |
| 2020s | 0 | 5 |
Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began September 2016, Resolved.
Show all 23 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 2016 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2015 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2014 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2014 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2014 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 2012 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2010 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2006 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2006 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 2005 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2003 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2003 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2002 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2002 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1998 | Resolved |
Where the water comes from
SWT Main System draws water from 11 wells. It also buys water from Lca Allentown Division and SWT Allentown Cons System. 1 other community water system and 1 smaller public system such as schools, businesses or campgrounds buy water from SWT Main System. 1 other public water system has an emergency connection to SWT Main System.
Buys water from
- Lca Allentown Division Allentown, PA
- SWT Allentown Cons System Allentown, PA
Community systems that buy water from it
- Salisbury Twp Water System Allentown, PA
Annual water quality report
SWT Main System must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Pennsylvania.
Certified drinking water labs by state EPA guidance for private wells