Is North Holbrook WC water safe to drink?

North Holbrook WC (PWS ID: CO0145630) has 363 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. EPA SDWIS lists this system's service population as 58 people using Groundwater sources.

How many people does North Holbrook WC serve?

EPA SDWIS reports that North Holbrook WC serves 58 people (this public water system's service population, not the municipal population of Rocky Ford or any other city). It is a Private-owned system using Groundwater water sources with 24 service connections. The operator address is listed in Rocky Ford, Colorado.

What type of violations does North Holbrook WC have?

North Holbrook WC has 363 total violations: 260 health-based violations (MCL exceedances or treatment failures), 61 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in North Holbrook WC water?

No. North Holbrook WC was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.

What water source does North Holbrook WC use?

North Holbrook WC 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 North Holbrook WC's violation count compare nationally?

North Holbrook WC has 363 recorded EPA SDWIS violations, fewer than 7% of the 29,740 public water systems serving 500 or more people nationwide (the same sitemap cohort used for the corpus-placement ranking above). 93% of that cohort has fewer violations than North Holbrook WC. 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 → Colorado

Community Water System · PWS CO0145630

North Holbrook WC

Operator location Rocky Ford, Colorado - 72% of 363 violations are health-based (upper-third health share (> 23%)); groundwater source; 58 served per SDWIS.

Compiled by PlainWater · May 15, 2026

58
People served (this PWS) Smaller third of systems: 363
EPA violations (this PWS) Upper third of systems: 260
Health-based (this PWS) Upper third by health-based share: No PFAS
UCMR5 (this PWS) Tested, none detected

Follow published updates (RSS)

North Holbrook WC standing, high SDWIS violation third

72% of 363 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 72% is upper-third health share (> 23%). UCMR5: UCMR5 tested, none detected.

The verdict

North Holbrook WC sits in the upper third of the sitemap cohort by violation count (363), so the tables below sample a dense compliance trail rather than a near-clean ledger. Population served is smaller (58; smaller served population (≤ 999)), so each violation row represents a compact service footprint. Health-based share is 72% - most of this ledger is MCL or treatment-technique exceedance. UCMR5 tested this system and reported no PFAS above the minimum reporting level.

363
Total EPA violations on record: 72%
Health-based (MCL / treatment failure): 58
People served by this PWS (SDWIS): 0
PFAS compounds detected (UCMR5)

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

Water Safety Score

6/100

North Holbrook WC

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

260

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

Monitoring & reporting violations F

103

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

PFAS contamination N/A

Tested, none detected

Highest PFAS compound level detected in UCMR5 testing

System Details

System Type: Community
Owner Type: Private
Connections: 24
County: Otero
School/Daycare: No
MCL Violations: 260
Monitoring Violations: 61
Treatment Tech Violations: 0

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Combined Radium (-226 and -228)	MCL	255	2025
Combined Radium (-226 and -228)	MR	28	2025
Coliform (TCR)	MR	15	2013
Groundwater Rule	Other	15	2016
Public Notice	Other	9	2025
Nitrate	MR	5	1993
Coliform (TCR)	MCL	5	2011
Gross Alpha, Excl. Radon and U	MR	3	2013
Chlorine	MR	3	2013
E. COLI	MR	3	2013
Total Haloacetic Acids (HAA5)	MR	2	2007
TTHM	MR	2	2007
Consumer Confidence Rule	Other	1	1999

Violation Count vs. the National Corpus

North Holbrook WC has 363 recorded EPA violations, 93% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 7% carry more. 72% of this system's own violations are health-based (260 of 363), 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)

363 Higher than most more violations than 93% 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

North Holbrook WC 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 North Holbrook WC. 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
North Holbrook WC: 363 violations, 72% 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

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 33 samples detected PFAS.

Contaminant	Date	Result	MRL	Status
PFTrDA	8/4/2025	<7.00 ppt	7.00 ppt	Not Detected
NEtFOSAA	8/4/2025	<5.00 ppt	5.00 ppt	Not Detected
NMeFOSAA	8/4/2025	<6.00 ppt	6.00 ppt	Not Detected
PFTA	8/4/2025	<8.00 ppt	8.00 ppt	Not Detected
PFHxA	7/14/2025	<3.00 ppt	3.00 ppt	Not Detected
PFHpA	7/14/2025	<3.00 ppt	3.00 ppt	Not Detected
PFHxS	7/14/2025	<3.00 ppt	3.00 ppt	Not Detected
PFNA	7/14/2025	<4.00 ppt	4.00 ppt	Not Detected
PFOS	7/14/2025	<4.00 ppt	4.00 ppt	Not Detected
PFOA	7/14/2025	<4.00 ppt	4.00 ppt	Not Detected
PFDoA	7/14/2025	<3.00 ppt	3.00 ppt	Not Detected
PFUnA	7/14/2025	<2.00 ppt	2.00 ppt	Not Detected
PFBS	7/14/2025	<3.00 ppt	3.00 ppt	Not Detected
4:2 FTS	7/14/2025	<3.00 ppt	3.00 ppt	Not Detected
PFDA	7/14/2025	<3.00 ppt	3.00 ppt	Not Detected
PFHpS	7/14/2025	<3.00 ppt	3.00 ppt	Not Detected
PFPeS	7/14/2025	<4.00 ppt	4.00 ppt	Not Detected
NFDHA	7/14/2025	<20.00 ppt	20.00 ppt	Not Detected
PFEESA	7/14/2025	<3.00 ppt	3.00 ppt	Not Detected
PFMBA	7/14/2025	<3.00 ppt	3.00 ppt	Not Detected
PFMPA	7/14/2025	<4.00 ppt	4.00 ppt	Not Detected
PFBA	7/14/2025	<5.00 ppt	5.00 ppt	Not Detected
8:2 FTS	7/14/2025	<5.00 ppt	5.00 ppt	Not Detected
PFPeA	7/14/2025	<3.00 ppt	3.00 ppt	Not Detected
6:2 FTS	7/14/2025	<5.00 ppt	5.00 ppt	Not Detected
11Cl-PF3OUdS	7/14/2025	<5.00 ppt	5.00 ppt	Not Detected
9Cl-PF3ONS	7/14/2025	<2.00 ppt	2.00 ppt	Not Detected
ADONA	7/14/2025	<3.00 ppt	3.00 ppt	Not Detected
HFPO-DA	7/14/2025	<5.00 ppt	5.00 ppt	Not Detected
NMeFOSAA	2/3/2025	<6.00 ppt	6.00 ppt	Not Detected
NEtFOSAA	2/3/2025	<5.00 ppt	5.00 ppt	Not Detected
PFTrDA	2/3/2025	<7.00 ppt	7.00 ppt	Not Detected
PFTA	2/3/2025	<8.00 ppt	8.00 ppt	Not Detected

Health-based violations on North Holbrook WC

260 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for CO0145630.

EPA SDWIS · PWS CO0145630 CO primacy agency

Sources: EPA SDWIS · Colorado Department of Public Health and Environment, Water Quality Control

Nationwide peers

363 violations · 58 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 North Holbrook WC

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

See how every tracked system in Colorado compares on the same EPA violation measures. Colorado 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.