Public water system · WY5600910

Active

Dyno Nobel, Inc.

At a glance

Dyno Nobel, Inc. (PWSID WY5600910) is an active non-transient non-community water system in Laramie County, Wyoming. It reports serving 176 people through 14 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in September 2002.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

176

Service connections

Primary source

Groundwater

System type

NTNCWS

Non-transient non-community water system

System record

PWSIDWY5600910

System typeNon-transient non-community water system

Activity statusActive

Population served176

Service connections14

Primary water sourceGroundwater

Owner typePrivate

Primacy agencyWY state drinking water program

City servedCheyenne

StateWyoming

ZIP—

CountyLaramie County

How does Dyno Nobel, Inc. compare with other water systems in Laramie County?

By EPA's size categories, Dyno Nobel, Inc. is a very small system (500 people or fewer). Laramie County has 50 active public water systems. Its population served is well below the county average of 1,933 people per system, and accounts for 0.2% of the 96,668 people reported by systems filed under the county. Across Wyoming, the 775 active systems average 838 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Dyno Nobel, Inc. is about 59% below that figure.

What does “non-transient non-community water system” mean?

A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Wyoming has 91 active non-transient non-community water systems, 12% of the state's 775 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 585 Wyoming systems (75%) list groundwater as their primary source.

Who owns and regulates Dyno Nobel, Inc.?

EPA lists Dyno Nobel, Inc. as privately owned. The WY state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 33 of the 50 active systems in Laramie County (66%) are also privately owned.

Does Dyno Nobel, Inc. have drinking water violations?

EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in September 2002. The violations listed here began between April 1991 and September 2002. By type: 6 monitoring and reporting and 3 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (8 of them). EPA lists 7 as archived and 2 as resolved. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.

Began	Violation	Contaminant or rule	Health-based	Status
2002-09-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived
2002-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2002-01-01	Monitoring and reportingMonitoring, Regular · code 03	Trichloroethylenecode 2984	No	Resolved
1997-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Archived
1997-10-01	Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25	Total coliform bacteria (TCR)code 3100	No	Archived
1996-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Archived
1995-07-01	Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24	Total coliform bacteria (TCR)code 3100	No	Archived
1994-04-01	Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25	Total coliform bacteria (TCR)code 3100	No	Archived
1991-04-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Archived

All 9 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

Dyno Nobel, Inc.: frequently asked questions

Who runs Dyno Nobel, Inc.?

Dyno Nobel, Inc. (PWSID WY5600910) is a non-transient non-community water system privately owned. It is regulated by the WY state drinking water program.

How many people does Dyno Nobel, Inc. serve?

Dyno Nobel, Inc. reports serving 176 people through 14 service connections in Laramie County, Wyoming.

Where does Dyno Nobel, Inc. get its water?

EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.

Does Dyno Nobel, Inc. have any drinking water violations?

EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in September 2002. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.

Is Dyno Nobel, Inc.'s water safe to drink?

AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in September 2002. For current results, consult EPA ECHO, or the WY state drinking water program.

Where can I find Dyno Nobel, Inc.'s water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Dyno Nobel, Inc. is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.

Other water systems in Laramie County

Water system	County	Population served	Type	Source
Cheyenne Board of Public Utilities	Laramie	64,165	Community	Surface water
South Cheyenne Water & Sewer District	Laramie	10,000	Community	Purchased surface water
Usaf F.E. Warren Afb	Laramie	5,500	Community	Purchased surface water
Love`S Travel Center	Laramie	1,545	Non-transient non-community	Groundwater
Travel Centers of America	Laramie	1,525	Non-transient non-community	Groundwater
Cheyenne Hills Church	Laramie	1,211	Transient non-community	Groundwater

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About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Dyno Nobel, Inc., PWSID WY5600910, Wyoming”, https://aquacensus.com/water-systems/wyoming/dyno-nobel-inc-wy5600910 (data as of October 1, 2026).