# BLUEWATER GAS STORAGE, LLC — Warning Letter

**Citation:** CPF 32024046WL  
**Type / status:** enforcement / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2024-04-19

CLOSED warning letter citing 192.465(d), 192.947(d).

## Document text

Warning Letter involving BLUEWATER GAS STORAGE, LLC. PHMSA's enforcement data identifies the cited regulations as 192.465(d),  192.947(d). The case was opened on 2024-04-19 and is reported as closed as of 2024-04-19. Open the official case record for notices, responses, orders, and the latest status.

Official case documents:

32024046WL_Warning Letter_04192024_(23-265892).pdf: https://primis.phmsa.dot.gov/enforcement-documents/32024046WL/32024046WL_Warning%20Letter_04192024_(23-265892).pdf

32024046WL_Warning Letter_04192024_(23-265892)_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/32024046WL/32024046WL_Warning%20Letter_04192024_(23-265892)_text.pdf

32024046WL_Warning Letter_04192024_(23-265892)_text.pdf

WARNING LETTER
VIA ELECTRONIC MAIL TO: andy.hesselbach@wecenergygroup.com,
jeffrey.westrick@wecenergygroup.com, rita.reed@wecenergygroup.com
April 19, 2024
Mr. Andy Hesselbach
President & Chief Executive Officer
Bluewater Gas Storage, LLC
231 W. Michigan St., PSB-P240
Milwaukee, WI 53203
CPF 3-2024-046-WL
Dear Mr. Hesselbach:
On March 24, August 14 through August 18, and October 10 through 12, 2023, representatives
of the Michigan Public Service Commission (MIPSC), acting as an Interstate Agent for the
Pipeline and Hazardous Materials Safety Administration (PHMSA), pursuant to Chapter 601 of
49 United States Code (U.S.C.), inspected Bluewater Gas Storage, LLC’s (BGS) records and
facilities in St. Clair and Macomb counties, Michigan.
As a result of the inspection, it is alleged that BGS has committed probable violations of the
Pipeline Safety Regulations, Title 49, Code of Federal Regulations (CFR). The items inspected
and the probable violations are:
1. § 192.465 External corrosion control: Monitoring and remediation.
(a) ….
(d) Each operator shall take prompt remedial action to correct any deficiencies
indicated by the monitoring.1
1 The readings taken and the PHMSA inspection were done before the new RIN 2 regulation came into effect.
Originally, the effective date was May 24, 2023, but was subsequently delayed until February 24, 2024.See Notice
of Limited Enforcement Discretion for New and Replaced Onshore Gas Transmission Pipelines, April 17, 2023,
available at https://www.phmsa.dot.gov/news/notice-limited-enforcement-discretion-new-and-replaced-onshore-
gas-transmission-pipelines. The original regulation cited above was in effect at the time of the records review of the
cathodic protection.



BGS did not take prompt remedial action to correct deficiencies from the annual cathodic
protection monitoring on the Kimball pipeline assets, per the requirements of §
192.465(d). PHMSA reviewed BGS’s cathodic protection readings from 2021 to 2022
and found that multiple locations had readings that were below -0.85v for consecutive
years. -0.85v is the threshold criteria BGS used to demonstrate compliance.
At the time of MIPSC’s inspection, BGS indicated it had initiated a program prior to the
inspection to remove or replace all of the old piping to and from the compressor station
which it diagnosed as the source of the deficient readings. The new piping was to be
designed and installed to have minimal cathodic protection isolation points to reduce the
potential of shorts, and was intended to address the low cathodic protection levels at these
facilities.
2. § 192.947 What records must an operator keep?
An operator must maintain, for the useful life of the pipeline, records that
demonstrate compliance with the requirements of this subpart. At minimum, an
operator must maintain the following records for review during an inspection.
(a) ….
(d) Documents to support any decision, analysis and process developed and used to
implement and evaluate each element of the baseline assessment plan and integrity
management program. Documents include those developed and used in support of
any identification, calculation, amendment, modification, justification, deviation
and determination made, and any action taken to implement and evaluate any of the
program elements;
BGS did not document decisions and/or any analyses used to implement and evaluate
each element of the baseline assessment plan and integrity management program, per the
requirements of § 192.947(d). Specifically, for its baseline assessments and the continual
evaluations and assessments, BGS offered phone and email conversations that alluded to
the validation of their inline inspection tool runs, but BGS was unable to provide records
of the decisions made (such as the decision to accept the tool run results). Documentation
of these decisions is a requirement of § 192.947(d) and must be maintained to
demonstrate compliance to the regulation.
Under 49 U.S.C. § 60122 and 49 CFR § 190.223, you are subject to a civil penalty not to exceed
$266,015 per violation per day the violation persists, up to a maximum of $2,660,135 for a
related series of violations. For violation occurring on or after January 6, 2023 and before
December 28, 2023, the maximum penalty may not exceed $257,664 per violation per day the
violation persists, up to a maximum of $2,576,627 for a related series of violations. For violation
occurring on or after March 21, 2022 and before January 6, 2023, the maximum penalty may not
exceed $239,142 per violation per day the violation persists, up to a maximum of $2,391,142 for
a related series of violations. For violation occurring on or after May 3, 2021 and before March



21, 2022, the maximum penalty may not exceed $225,134 per violation per day the violation
persists, up to a maximum of $2,251,334 for a related series of violations. For violation
occurring on or after January 11, 2021 and before May 3, 2021, the maximum penalty may not
exceed $222,504 per violation per day the violation persists, up to a maximum of $2,225,034 for
a related series of violations. For violation occurring on or after July 31, 2019 and before January
11, 2021, the maximum penalty may not exceed $218,647 per violation per day the violation
persists, up to a maximum of $2,186,465 for a related series of violations. For violation
occurring on or after November 27, 2018 and before July 31, 2019, the maximum penalty may
not exceed $213,268 per violation per day, with a maximum penalty not to exceed $2,132,679.
We have reviewed the circumstances and supporting documents involved in this case, and have
decided not to conduct additional enforcement action or penalty assessment proceedings at this
time. We advise you to correct the items identified in this letter. Failure to do so will result in
BGS being subject to additional enforcement action.
No reply to this letter is required. If you choose to reply, in your correspondence please refer to
CPF 3-2024-046-WL. Be advised that all material you submit in response to this enforcement
action is subject to being made publicly available. If you believe that any portion of your
responsive material qualifies for confidential treatment under 5 U.S.C. § 552(b), along with the
complete original document you must provide a second copy of the document with the portions
you believe qualify for confidential treatment redacted and an explanation of why you believe
the redacted information qualifies for confidential treatment under 5 U.S.C. § 552(b).
Sincerely,
Gregory A. Ochs
Director, Central Region, Office of Pipeline Safety
Pipeline and Hazardous Materials Safety Administration
cc: Jeffrey Westrick, Asset Manager Bluewater Facilities, Bluewater Gas Storage, LLC,
jeffrey.westrick@wecenergygroup.com
Rita Reed, Engineering Specialist, Bluewater Gas Storage, LLC,
rita.reed@wecenergygroup.com

## Provenance

- Official: Yes
- Source: <https://primis.phmsa.dot.gov/enforcement-data/case/32024046WL>
- Source ID: `phmsa-enforcement`
- SHA-256: `74aee5f6cf374d2c798207923de5e785357043cfca845c326a06df3be3b99773`
- Retrieved: 2026-08-20T04:44:44.458Z
- Exported: 2026-08-22T16:48:21.534Z
- Document slug: `phmsa-enforcement-32024046wl`

### Source metadata

```json
{
  "cpf": "32024046WL",
  "operator": "BLUEWATER GAS STORAGE, LLC",
  "region": "Central",
  "pipelineType": "INTERSTATE GAS TRANSMISSION",
  "caseStatus": "CLOSED",
  "citedSections": [
    "192.465(d)",
    "192.947(d)"
  ],
  "dataAsOf": "08/04/2026 12PM",
  "caseDataAsOf": "2026-08-04",
  "attachmentCount": 2,
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      "category": "agency_document"
    },
    {
      "name": "32024046WL_Warning Letter_04192024_(23-265892)_text.pdf",
      "url": "https://primis.phmsa.dot.gov/enforcement-documents/32024046WL/32024046WL_Warning%20Letter_04192024_(23-265892)_text.pdf",
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  ],
  "extractedAgencyDocumentCount": 1,
  "attachmentPolicy": "Official attachment links are retained. Agency-issued documents may also include a verified local PDF and page-level text representation.",
  "jurisdiction": "US",
  "operatorName": "BLUEWATER GAS STORAGE, LLC"
}
```
