Is Standard water safe to drink?

Standard (PWS ID: IL1550300) has 658 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. EPA SDWIS lists this system's service population as 203 people using Groundwater sources.

How many people does Standard serve?

EPA SDWIS reports that Standard serves 203 people (this public water system's service population, not the municipal population of Standard or any other city). It is a Local-owned system using Groundwater water sources with 109 service connections. The operator address is listed in Standard, Illinois.

What type of violations does Standard have?

Standard has 658 total violations: 252 health-based violations (MCL exceedances or treatment failures), 309 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in Standard water?

No PFAS testing data is available for Standard under the EPA's UCMR5 monitoring program.

What water source does Standard use?

Standard uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.

Where does this data come from?

All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

How does Standard's violation count compare nationally?

Standard has 658 recorded EPA SDWIS violations, fewer than 3% of the 29,740 public water systems serving 500 or more people nationwide (the same sitemap cohort used for the corpus-placement ranking above). 97% of that cohort has fewer violations than Standard. A system can have zero recorded violations and still be actively monitored, and a high violation count often reflects a system that reports thoroughly, not necessarily one with worse water.

States → Illinois

Community Water System · PWS IL1550300

Standard

Operator location Standard, Illinois - 38% of 658 violations are health-based (upper-third health share (> 23%)); groundwater source; 203 served per SDWIS.

Compiled by PlainWater · May 15, 2026

203
People served (this PWS) Smaller third of systems: 658
EPA violations (this PWS) Upper third of systems: 252
Health-based (this PWS) Upper third by health-based share: Untested
UCMR5 (this PWS) No UCMR5 result

Follow published updates (RSS)

Standard standing, high SDWIS violation third

38% of 658 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 38% is upper-third health share (> 23%).

The verdict

Standard sits in the upper third of the sitemap cohort by violation count (658), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (203; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 38% - most of this ledger is MCL or treatment-technique exceedance. No UCMR5 PFAS test appears for this system in this extract.

658
Total EPA violations on record: 38%
Health-based (MCL / treatment failure): 203
People served by this PWS (SDWIS): N/A
PFAS compounds detected (UCMR5)

Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.

Water Safety Score

0/100

Standard

Based on EPA SDWIS violation history and UCMR5 PFAS testing only, not water taste, odor, infrastructure age, or contaminants outside the federally tracked set.

Health-based violations F

252

EPA SDWIS health-based violations on record (MCL, MRDL, treatment technique)

Monitoring & reporting violations F

406

Non-health SDWIS violations (monitoring, reporting, and other compliance)

PFAS contamination N/A

Not UCMR5-tested

Highest PFAS compound level detected in UCMR5 testing

System Details

System Type: Community
Owner Type: Local
Connections: 109
County: Putnam
School/Daycare: No
MCL Violations: 252
Monitoring Violations: 309
Treatment Tech Violations: 0

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Combined Radium (-226 and -228)	MCL	136	2007
Gross Alpha, Excl. Radon and U	MCL	74	2007
Public Notice	Other	46	2014
Coliform (TCR)	MR	29	2002
Arsenic	MCL	24	2013
DICHLOROMETHANE	MCL	18	2004
Combined Radium (-226 and -228)	MR	14	2007
cis-1,2-Dichloroethylene	MR	12	2002
DICHLOROMETHANE	MR	12	2002
1,1-Dichloroethylene	MR	12	2002
Carbon tetrachloride	MR	12	2002
1,2-Dichloropropane	MR	12	2002
Trichloroethylene	MR	12	2002
1,1,2-Trichloroethane	MR	12	2002
Tetrachloroethylene	MR	12	2002
CHLOROBENZENE	MR	12	2002
Benzene	MR	12	2002
Ethylbenzene	MR	12	2002
Styrene	MR	12	2002
1,2,4-Trichlorobenzene	MR	12	2002
Xylenes, Total	MR	12	2002
trans-1,2-Dichloroethylene	MR	12	2002
1,1,1-Trichloroethane	MR	12	2002
o-Dichlorobenzene	MR	12	2002
p-Dichlorobenzene	MR	12	2002
1,2-Dichloroethane	MR	12	2002
Toluene	MR	12	2002
Gross Alpha, Excl. Radon and U	MR	8	2001
Combined Uranium	MR	8	2007
Lead and Copper Rule	MR	6	2004

Violation Count vs. the National Corpus

Standard has 658 recorded EPA violations, 97% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 3% carry more. 38% of this system's own violations are health-based (252 of 658), and it ranks unranked by population served among that same cohort.

EPA violations vs. the national water-system corpus

Public water systems serving 500+ people (EPA SDWIS)

658 Higher than most more violations than 97% of 29,740 water systems

the national water-system corpus, bucketed by value

Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source EPA SDWIS · 2026-05-15

How many violations vs. how serious, among peer systems

Standard plotted against 29 peer public water systems (500+ people served), by total violation count (x) and the share of those violations that are health-based (y). The crosshair sits at this sample's own median on each axis. A high violation count does not automatically mean a serious record: most monitoring and reporting violations are minor, not health-based.

30 public water systems (500+ people served), EPA SDWIS current release.

How to read this

Each dot is one public water system; the highlighted dot is Standard. A system to the right has more recorded violations; a system higher up has a larger share of those violations classified health-based rather than monitoring or reporting.

Rare but serious: few violations, but most of them are health-based.
Frequent, mostly paperwork: many violations, but mostly monitoring or reporting, not health-based.
Clean record: below-median on both counts, the tinted corner.

View all 30 systems as a list

City of Ballinger: 372 violations, 85% health-based
Standard: 658 violations, 38% health-based (this system)
Nooksack Valley Water Association: 16 violations, 31% health-based
Montgomery Co RWD 12: 7 violations, 29% health-based
Irvin Water District #6: 11 violations, 27% health-based
Ticonderoga WD: 47 violations, 26% health-based
Pine Valley Plantation: 37 violations, 24% health-based
McLouth, City Of: 29 violations, 17% health-based
Kipling Oaks 1: 25 violations, 16% health-based
South Deerfield Water Supply District: 96 violations, 16% health-based
Sunset Ridge Water District: 82 violations, 15% health-based
Orange Water Dept: 136 violations, 14% health-based
Mount Pleasant Water Sys #1: 167 violations, 11% health-based
Lake Gibson Estates: 42 violations, 2% health-based
Benson Culinary Improvement District: 212 violations, 1% health-based
Conemaugh Twp Muni Auth: 567 violations, 1% health-based
Miccosukee Service Plaza: 0 violations, 0% health-based
Brazoria - Fort Bend Counties MUD 3: 0 violations, 0% health-based
Tanglewilde Thompson Place 600: 2 violations, 0% health-based
Center Water Co: 5 violations, 0% health-based
Spring Mills Elem School/Hvs: 9 violations, 0% health-based
Great Bend Industrial Park: 14 violations, 0% health-based
Glen Park Village: 19 violations, 0% health-based
Camp Is-Sho-Da: 22 violations, 0% health-based
Hamilton: 33 violations, 0% health-based
Town of Welaka: 54 violations, 0% health-based
Township of Blairstown Dpw: 61 violations, 0% health-based
McIntosh Water & Fire Pro Authority: 71 violations, 0% health-based
Clarkdale Municipal Water System: 114 violations, 0% health-based
Eureka Water Association: 273 violations, 0% health-based

Health-based violations on Standard

252 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for IL1550300.

EPA SDWIS · PWS IL1550300 IL primacy agency

Sources: EPA SDWIS · Illinois EPA, Bureau of Water

Nationwide peers

658 violations · 203 served: nearest cross-state SDWIS matches.

Cross-state systems with comparable violation load

Nearest cross-state community systems (500+ served) by total SDWIS violations on record.

4 peers

What to do with Standard

Use this system's EPA-reported record as a starting filter, not a final verdict.

See how every tracked system in Illinois compares on the same EPA violation measures. Illinois systems
Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
Find and compare another public water system by name or PWSID. Search systems

EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.

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

Compiled by PlainWater, Drinking Water Quality Editorial Process · May 15, 2026

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