---

The tables below list all violations that the state reported to EPA for this water system. Health-based violations are listed first, followed by treatment technique, MRDL, monitoring, reporting, and other violations.

Health-based	Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.
Maximum Contaminant Level or MCL	The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Treatment Technique	A required process intended to reduce the level of a contaminant in drinking water.
Maximum residual disinfectant level or MRDL	The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Monitoring & reporting	Failure to conduct regular monitoring of drinking water quality, as required by SDWA, or to submit monitoring results in a timely fashion to the primacy agency or EPA.
Public notification & other	Failure to provide notification to the public as required by the Violations of Public Notification Rule and the Consumer Confidence Report Rule, and violations of other requirements such as those violations related to variances and exemptions.

---

Violations

Go

Rows1510152025501001000All

Actions

Violation Category Code	Violation Type Description	Rule Name	Contaminant Name	Violation ID	Compliance Status Description	Compliance Period Begin Date	Compliance Period End Date	Is Health Based Ind
MR	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	Lead and Copper Rule	421	Returned to Compliance	01-APR-2024	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	415	Returned to Compliance	30-DEC-2023	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	409	Returned to Compliance	01-APR-2011	30-APR-2011	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	408	Returned to Compliance	01-OCT-2008	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	406	Known	01-APR-2006	30-APR-2006	Yes
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	102	Returned to Compliance	01-JUL-2000	-	No

• 1 - 6 of 6

Column Actions

Search

---

Enforcement Actions

Go

Rows1510152025501001000All

Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
78314	421	SOX	State Compliance achieved	05-FEB-2025	Region	System collected required samples (CAR_2/5/25)
78309	415	SOX	State Compliance achieved	08-FEB-2024	Region	-
78306	408	SOX	State Compliance achieved	05-JUL-2011	Region	Per phone conversation approx. 11/2010 with John Hardin, system told they would be allowed to take samples in 2011 w/o violation due to sampling mix-up that occurred among JPB PWSs. AT
78305	409	SIA	State Violation/Reminder Notice	25-MAY-2011	Region	-
78302	102	SOX	State Compliance achieved	09-JUL-2002	Region	-

• 1 - 5 of 5

Column Actions

Search

---

All Facilities

Go

Rows1510152025501001000All

Actions

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
BIG HORN REGIONAL JPB (WY5601630)	19053	Yes	Consecutive Connection	Ground water	Permanent	Active
WILD HORSE WELL #2	14692	Yes	Well	Ground water	Permanent	Active
WILD HORSE WELL #1	14688	Yes	Well	Ground water	Permanent	Active
SO. BIG HORN COUNTY JPB	17206	No	Distribution System/Zone	-	-	Active
SOUTH BIG HORN CO WATER SUPPLY JPB	14929	No	Other	-	-	Inactive
STORAGE TANK (100K-GAL)	14696	No	Storage	-	-	Active
TREATMENT BUILDING	14694	No	Treatment Plant	-	-	Active

• 1 - 7 of 7

Column Actions

Search

---

Treatment Processes

Go

Rows1510152025501001000All

Actions

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT BUILDING	14694	Gaseous Chlorination, Post	Disinfection

• 1 - 1 of 1

Column Actions

Search