# HOPKINTON LNG CO — Notice of Amendment

**Citation:** CPF 120113003M  
**Type / status:** enforcement / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2011-12-13

CLOSED notice of amendment citing 193.2513(c)(3)(ii), 193.2605(b)(1).

## Document text

Notice of Amendment involving HOPKINTON LNG CO. PHMSA's enforcement data identifies the cited regulations as 193.2513(c)(3)(ii),  193.2605(b)(1). The case was opened on 2011-12-13 and is reported as closed as of 2012-05-15. Open the official case record for notices, responses, orders, and the latest status.

Official case documents:

120113003M_Closure Letter_05152012.pdf: https://primis.phmsa.dot.gov/enforcement-documents/120113003M/120113003M_Closure%20Letter_05152012.pdf

120113003M_Closure Letter_05152012_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/120113003M/120113003M_Closure%20Letter_05152012_text.pdf

120113003M_NOA_12132011.pdf: https://primis.phmsa.dot.gov/enforcement-documents/120113003M/120113003M_NOA_12132011.pdf

120113003M_NOA_12132011_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/120113003M/120113003M_NOA_12132011_text.pdf

120113003M_Operator Response to NOA_01232012.pdf: https://primis.phmsa.dot.gov/enforcement-documents/120113003M/120113003M_Operator%20Response%20to%20NOA_01232012.pdf

120113003M_Closure Letter_05152012_text.pdf

U.S. Department 820 Bear Tavern Road, Suite 103
Of Transportation West Trenton, NJ 08628
Pipeline and 609.989.2171
Hazardous Materials
Safety Administration
Overnight Express Mail
May 15, 2012
Mr. Werner Schweiger
Sr. Vice President, Operations
NSTAR/Hopkinton LNG Corp.
One NSTAR Way, NE 300
Westwood MA, 02090
CPF 1-2011-3003M
Dear Mr. Schweiger:
During the week of October 4, 2010, representatives from the Pipeline and Hazardous Materials
Safety Administration (PHMSA), pursuant to chapter 601 of 49 United States Code, conducted
an on-site pipeline safety inspection of Hopkinton LNG Corporation’s (Hopkinton LNG)
procedures in Hopkinton, Massachusetts. As a result of the inspection, Hopkinton LNG was
issued a Notice of Amendment on December 13, 2011, which proposed amendment of your
procedures.
Hopkinton LNG submitted its amended procedures in letters, dated January 23, 2012, February
10, 2012, and April 24, 2012. My staff has reviewed the amended procedures, and it appears that
the inadequacies outlined in this Notice of Amendment have been corrected.
This letter is to inform you no further action is necessary and this case is now closed. Thank you
for your cooperation.
Sincerely,
Byron Coy, PE
Director, Eastern Region
Pipeline and Hazardous Materials Safety Administration

## Provenance

- Official: Yes
- Source: <https://primis.phmsa.dot.gov/enforcement-data/case/120113003M>
- Source ID: `phmsa-enforcement`
- SHA-256: `4064bd80bfdaf874287eafd1f90077c69667bbfdc051702ec5cc5d63f2b26dec`
- Retrieved: 2026-08-20T04:44:44.458Z
- Exported: 2026-08-22T05:58:06.780Z
- Document slug: `phmsa-enforcement-120113003m`

### Source metadata

```json
{
  "cpf": "120113003M",
  "operator": "HOPKINTON LNG CO",
  "region": "Eastern",
  "pipelineType": "INTERSTATE LNG ONSHORE",
  "caseStatus": "CLOSED",
  "citedSections": [
    "193.2513(c)(3)(ii)",
    "193.2605(b)(1)"
  ],
  "dataAsOf": "08/04/2026 12PM",
  "caseDataAsOf": "2026-08-04",
  "attachmentCount": 5,
  "attachments": [
    {
      "name": "120113003M_Closure Letter_05152012.pdf",
      "url": "https://primis.phmsa.dot.gov/enforcement-documents/120113003M/120113003M_Closure%20Letter_05152012.pdf",
      "bytes": 218154,
      "category": "agency_document"
    },
    {
      "name": "120113003M_Closure Letter_05152012_text.pdf",
      "url": "https://primis.phmsa.dot.gov/enforcement-documents/120113003M/120113003M_Closure%20Letter_05152012_text.pdf",
      "bytes": 19966,
      "category": "agency_document"
    },
    {
      "name": "120113003M_NOA_12132011.pdf",
      "url": "https://primis.phmsa.dot.gov/enforcement-documents/120113003M/120113003M_NOA_12132011.pdf",
      "bytes": 1262623,
      "category": "case_document"
    },
    {
      "name": "120113003M_NOA_12132011_text.pdf",
      "url": "https://primis.phmsa.dot.gov/enforcement-documents/120113003M/120113003M_NOA_12132011_text.pdf",
      "bytes": 27880,
      "category": "case_document"
    },
    {
      "name": "120113003M_Operator Response to NOA_01232012.pdf",
      "url": "https://primis.phmsa.dot.gov/enforcement-documents/120113003M/120113003M_Operator%20Response%20to%20NOA_01232012.pdf",
      "bytes": 365385,
      "category": "party_submission"
    }
  ],
  "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": "HOPKINTON LNG CO"
}
```