What is 2,4,5-TP in drinking water?

2,4,5-TP has 47,520 recorded EPA SDWIS violations across 9,528 public water systems (middle-third volume (≤ 49,133 violations)).

How many water systems have 2,4,5-TP violations?

9,528 systems, a wide national footprint (wide footprint (> 8,691 systems)).

Are 2,4,5-TP violations dangerous?

In this extract, 0% are health-based. Recorded findings are monitoring/reporting class, not MCL exceedances.

Where does 2,4,5-TP sit in the national contaminant ledger?

#57 of 157 indexable contaminants by violation volume - middle-third volume (≤ 49,133 violations), mid load (≤ 5.8 violations per affected system).

Where does this contaminant data come from?

EPA Safe Drinking Water Information System (SDWIS) quarterly extracts. Counts are cumulative compliance records, not a live risk score for a single tap.

Contaminants →

EPA SDWIS

2,4,5-TP in Drinking Water

Compiled by PlainWater · May 15, 2026

9,528 public water systems carry at least one 2,4,5-TP violation - wide footprint (> 8,691 systems).

Browse all SDWIS contaminants →

EPA contaminant code: 2110

Total Violations

47,520

Systems Affected

9,528

Health-Based %

Violations / System

5.0

2,4,5-TP standing, mid-volume SDWIS third

2,4,5-TP lands in the middle third by violation volume (47,520), large enough for peer comparisons but not one of the handful of analytes that dominate the fleet-wide SDWIS ledger. Load sits mid-pack at 5.0 violations per affected system (mid load (≤ 5.8 violations per affected system)). None of the recorded 2,4,5-TP violations in this extract are classified health-based; the trail is procedural. Among 157 indexable contaminants, this page is #57 by violation volume. Utilities listed below are ranked by cumulative violation count for this analyte; pair that with population served to gauge household exposure scale.

Nationwide similar contaminants

Nearest by violation volume

Pentachlorophenol (47,460) Toxaphene (47,945) Di(2-ethylhexyl) phthalate (48,493) Chlordane (46,503)

Nearest by systems affected

2,4-D (9,509 systems) Atrazine (9,462 systems) Endrin (9,348 systems) Methoxychlor (9,743 systems)

2,4,5-TP: monitoring/reporting trail

0% health-based · 100.0% monitoring/reporting across 47,520 records.

Health-based (0%) Monitoring/Reporting (100.0%)

Most Affected Water Systems

System	State	Violations	Population
Salem Heights Estate	PA	156	62
Congregation Ohr Menachem	PA	148	30
Skyview Estates	IL	124	56
Prague	OK	111	2,395
Marble Water System	WA	107	94
Dabob Cove Community	WA	94	24
27 Maple Drive	CT	88	38
Aqua PA Sun Valley	PA	80	120
Neshaminy Manor Center	PA	77	2,100
Vista del Rio Mobile Home Park	WA	75	352
Springhill Park Subdivision	MT	72	90
Sage Hills Second Water System	WA	71	34
Christ Mission Lutheran Church	IL	70	150
Willow Springs MHP	IN	66	25
Helena RV and Mobile Home Park	MT	66	250
Paradise Stream Resor	PA	65	774
Oilton	OK	64	1,435
Lewis River Golf Course	WA	64	300
Seneca Trail Christian Academy	WV	64	100
Malta City Of	MT	63	1,800
Congregation Beth Judea	IL	62	25
Save a Pet	IL	61	50
Ambler Boro Water Dept	PA	60	20,000
Taleem Ul Haq	IL	56	100
Roamingwood Sewer and Water	PA	56	3,775
Tooele City Water System	UT	56	37,100
PA American Audubon	PA	55	8,200
Taggares Fruit Co	WA	54	152
Plymouth Community Church	IN	53	90
Pbc Linear	IL	52	140

Context: understanding water quality data · is my water safe?

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the EPA Safe Drinking Water Information System (SDWIS). Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.