# NTSB Safety Recommendation P-76-094 **Citation:** P-76-094 **Type / status:** guidance / guidance **Agency:** National Transportation Safety Board **Effective:** 1977-01-31 **Published:** 1977-01-31 ADVISE MEMBER COMPANIES WHOSE FACILITIES ARE EXPOSED TO EXCAVATION CONSTRUCTION PROJECTS TO TAKE IMMEDIATE ACTION TO MARK AND LOCATE THEIR FACILITIES ACCURATELY. ## Document text NTSB safety recommendation P-76-094. ADVISE MEMBER COMPANIES WHOSE FACILITIES ARE EXPOSED TO EXCAVATION CONSTRUCTION PROJECTS TO TAKE IMMEDIATE ACTION TO MARK AND LOCATE THEIR FACILITIES ACCURATELY. Priority: CLASS II Overall Status: Closed - Acceptable Alternate Action Issued Date: 1977-01-31 Adopted Date: 1976-12-09 Overall Date Closed: 1980-02-14 Synopsis: ON JUNE 16, 1976, A PIECE OF CONSTRUCTION EQUIPMENT EXCAVATING FOR A STREET WIDENING PROJECT ON VENICE BOULEVARD IN LOS ANGELES, CALIFORNIA, STRUCK AND PUNCTURED AN 8-INCH PETROLEUM PRODUCTS PIPELINE OWNED BY THE STANDARD OIL COMPANY OF CALIFORNIA. THE ESCAPING GASOLINE SPRAYED ON NEARBY BUILDINGS AND IGNITED. 9 PERSONS WERE KILLED, 14 PERSONS WERE INJURED, 7 BUILDINGS WERE DESTROYED, OTHER BUILDINGS WERE DAMAGED BY FIRE AND HEAT, AND 15 VEHICLES WERE DESTROYED. Ntsbnumber: DCA76MP021 Report Number: PAR-76-08 Addressee Name: American Gas Association Addressee Status: Closed--No Longer Applicable Addressee Date Closed: 1980-02-14 Addressee Acronym: AGA Addressee Organization Type: A-Associations Communication Date: 1979-11-16 Communication Type: Official Correspondence Communication Contents: AMERICAN PETROLEUM INSTITUTE LETTER OF 2/1/77 - THE INSTITUTE HAS FOR MANY YEARS SUPPORTED THE PERMANENT MARKING OF PIPELINES AND IN 1971 PUBLISHED A RECOMMENDED PRACTICE ON THIS SUBJECT. THE PETROLEUM PIPELINE INDUSTRY HAS LONG SUPPORTED EFFECTIVE TEMPORARY MARKING OF PIPELINES AND THEIR PROPER LOCATION DURING CONSTRUCTION ACTIVITY AROUND THEM. INGAA LETTER OF 1/31/77 - WE HAVE FORWARDED COPIES OF THE RECOMMENDATIONS TO MEMBERS OF THE ASSOCIATION. 11/16/79 - AGA LTR: THE COORDINATING GROUP FOR PIPELINE SAFETY DID NOT TAKE ACTION ON THIS ITEM SINCE IT INVOLVED DAMAGE TO A LIQUID LINE. HOWEVER, AGA HAS LONG BEEN A STRONG SUPPORTER OF THE 'ONE-CALL' SYSTEM AS EVIDENCED BY LETTER OF AUGUST 8, 1975, TO OUR MEMBER COMPANIES. Addressee Acronym: AGA Addressee Organization Type: A-Associations Communication Date: 1980-02-14 Communication Type: Official Correspondence Addressee Name: American Petroleum Institute Addressee Status: Closed--No Longer Applicable Addressee Date Closed: 1980-02-14 Addressee Acronym: API Addressee Organization Type: A-Associations Communication Date: 1977-02-01 Communication Type: Official Correspondence Communication Contents: AMERICAN PETROLEUM INSTITUTE LETTER OF 2/1/77 - THE INSTITUTE HAS FOR MANY YEARS SUPPORTED THE PERMANENT MARKING OF PIPELINES AND IN 1971 PUBLISHED A RECOMMENDED PRACTICE ON THIS SUBJECT. THE PETROLEUM PIPELINE INDUSTRY HAS LONG SUPPORTED EFFECTIVE TEMPORARY MARKING OF PIPELINES AND THEIR PROPER LOCATION DURING CONSTRUCTION ACTIVITY AROUND THEM. INGAA LETTER OF 1/31/77 - WE HAVE FORWARDED COPIES OF THE RECOMMENDATIONS TO MEMBERS OF THE ASSOCIATION. 11/16/79 - AGA LTR: THE COORDINATING GROUP FOR PIPELINE SAFETY DID NOT TAKE ACTION ON THIS ITEM SINCE IT INVOLVED DAMAGE TO A LIQUID LINE. HOWEVER, AGA HAS LONG BEEN A STRONG SUPPORTER OF THE 'ONE-CALL' SYSTEM AS EVIDENCED BY LETTER OF AUGUST 8, 1975, TO OUR MEMBER COMPANIES. Addressee Acronym: API Addressee Organization Type: A-Associations Communication Date: 1980-02-14 Communication Type: Official Correspondence Addressee Name: Interstate Natural Gas Association of America Addressee Status: Closed--No Longer Applicable Addressee Date Closed: 1980-02-14 Addressee Acronym: INGAA Addressee Organization Type: A-Associations Communication Date: 1977-01-31 Communication Type: Official Correspondence Communication Contents: AMERICAN PETROLEUM INSTITUTE LETTER OF 2/1/77 - THE INSTITUTE HAS FOR MANY YEARS SUPPORTED THE PERMANENT MARKING OF PIPELINES AND IN 1971 PUBLISHED A RECOMMENDED PRACTICE ON THIS SUBJECT. THE PETROLEUM PIPELINE INDUSTRY HAS LONG SUPPORTED EFFECTIVE TEMPORARY MARKING OF PIPELINES AND THEIR PROPER LOCATION DURING CONSTRUCTION ACTIVITY AROUND THEM. INGAA LETTER OF 1/31/77 - WE HAVE FORWARDED COPIES OF THE RECOMMENDATIONS TO MEMBERS OF THE ASSOCIATION. 11/16/79 - AGA LTR: THE COORDINATING GROUP FOR PIPELINE SAFETY DID NOT TAKE ACTION ON THIS ITEM SINCE IT INVOLVED DAMAGE TO A LIQUID LINE. HOWEVER, AGA HAS LONG BEEN A STRONG SUPPORTER OF THE 'ONE-CALL' SYSTEM AS EVIDENCED BY LETTER OF AUGUST 8, 1975, TO OUR MEMBER COMPANIES. Addressee Acronym: INGAA Addressee Organization Type: A-Associations Communication Date: 1980-02-14 Communication Type: Official Correspondence ## Provenance - Official: Yes - Source: - Source ID: `ntsb-pipeline` - SHA-256: `2e91a440de15197a870c0a05afd23b5edb78ef0b9ecf7f9bab99ba8e4b979865` - Retrieved: 2026-08-20T04:57:24.741Z - Exported: 2026-08-23T10:25:14.536Z - Document slug: `ntsb-recommendation-p-76-094` ### Source metadata ```json { "recordKind": "ntsb_safety_recommendation", "safetyRecommendationNumber": "P-76-094", "recommendationMode": "Pipeline", "topicMode": "Pipeline", "ntsbNumber": "DCA76MP021", "priority": "CLASS II", "overallStatus": "Closed - Acceptable Alternate Action", "overallStatusAcronym": "CAAA", "overallDateClosed": "1980-02-14", "lastModifiedDate": "2016-11-15", "reportNumber": "PAR-76-08", "reportUrl": "https://www.ntsb.gov/investigations/Pages/DCA76MP021.aspx", "transmittalLetterUrl": "http://www.ntsb.gov/safety/safety-recs/recletters/P76_94.pdf", "addressees": [ { "addresseeName": "American Gas Association", "addresseeStatusAcronym": "CNLA", "addresseeStatus": "Closed--No Longer Applicable", "addresseeDateClosed": "1980-02-14", "addresseeDetails": [ { "addresseeAcronym": "AGA", "addresseeOrganizationType": "A-Associations", "isFromNtsb": false, "communicationDate": "1979-11-16", "communicationType": "Official Correspondence", "communicationContents": "AMERICAN PETROLEUM INSTITUTE LETTER OF 2/1/77 - THE INSTITUTE HAS FOR MANY YEARS SUPPORTED THE PERMANENT MARKING OF PIPELINES AND IN 1971 PUBLISHED A RECOMMENDED PRACTICE ON THIS SUBJECT. THE PETROLEUM PIPELINE INDUSTRY HAS LONG SUPPORTED EFFECTIVE TEMPORARY MARKING OF PIPELINES AND THEIR PROPER LOCATION DURING CONSTRUCTION ACTIVITY AROUND THEM. INGAA LETTER OF 1/31/77 - WE HAVE FORWARDED COPIES OF THE RECOMMENDATIONS TO MEMBERS OF THE ASSOCIATION. 11/16/79 - AGA LTR: THE COORDINATING GROUP FOR PIPELINE SAFETY DID NOT TAKE ACTION ON THIS ITEM SINCE IT INVOLVED DAMAGE TO A LIQUID LINE. HOWEVER, AGA HAS LONG BEEN A STRONG SUPPORTER OF THE 'ONE-CALL' SYSTEM AS EVIDENCED BY LETTER OF AUGUST 8, 1975, TO OUR MEMBER COMPANIES." }, { "addresseeAcronym": "AGA", "addresseeOrganizationType": "A-Associations", "isFromNtsb": true, "communicationDate": "1980-02-14", "communicationType": "Official Correspondence", "communicationContents": "" } ] }, { "addresseeName": "American Petroleum Institute", "addresseeStatusAcronym": "CNLA", "addresseeStatus": "Closed--No Longer Applicable", "addresseeDateClosed": "1980-02-14", "addresseeDetails": [ { "addresseeAcronym": "API", "addresseeOrganizationType": "A-Associations", "isFromNtsb": false, "communicationDate": "1977-02-01", "communicationType": "Official Correspondence", "communicationContents": "AMERICAN PETROLEUM INSTITUTE LETTER OF 2/1/77 - THE INSTITUTE HAS FOR MANY YEARS SUPPORTED THE PERMANENT MARKING OF PIPELINES AND IN 1971 PUBLISHED A RECOMMENDED PRACTICE ON THIS SUBJECT. THE PETROLEUM PIPELINE INDUSTRY HAS LONG SUPPORTED EFFECTIVE TEMPORARY MARKING OF PIPELINES AND THEIR PROPER LOCATION DURING CONSTRUCTION ACTIVITY AROUND THEM. INGAA LETTER OF 1/31/77 - WE HAVE FORWARDED COPIES OF THE RECOMMENDATIONS TO MEMBERS OF THE ASSOCIATION. 11/16/79 - AGA LTR: THE COORDINATING GROUP FOR PIPELINE SAFETY DID NOT TAKE ACTION ON THIS ITEM SINCE IT INVOLVED DAMAGE TO A LIQUID LINE. HOWEVER, AGA HAS LONG BEEN A STRONG SUPPORTER OF THE 'ONE-CALL' SYSTEM AS EVIDENCED BY LETTER OF AUGUST 8, 1975, TO OUR MEMBER COMPANIES." }, { "addresseeAcronym": "API", "addresseeOrganizationType": "A-Associations", "isFromNtsb": true, "communicationDate": "1980-02-14", "communicationType": "Official Correspondence", "communicationContents": "" } ] }, { "addresseeName": "Interstate Natural Gas Association of America", "addresseeStatusAcronym": "CNLA", "addresseeStatus": "Closed--No Longer Applicable", "addresseeDateClosed": "1980-02-14", "addresseeDetails": [ { "addresseeAcronym": "INGAA", "addresseeOrganizationType": "A-Associations", "isFromNtsb": false, "communicationDate": "1977-01-31", "communicationType": "Official Correspondence", "communicationContents": "AMERICAN PETROLEUM INSTITUTE LETTER OF 2/1/77 - THE INSTITUTE HAS FOR MANY YEARS SUPPORTED THE PERMANENT MARKING OF PIPELINES AND IN 1971 PUBLISHED A RECOMMENDED PRACTICE ON THIS SUBJECT. THE PETROLEUM PIPELINE INDUSTRY HAS LONG SUPPORTED EFFECTIVE TEMPORARY MARKING OF PIPELINES AND THEIR PROPER LOCATION DURING CONSTRUCTION ACTIVITY AROUND THEM. INGAA LETTER OF 1/31/77 - WE HAVE FORWARDED COPIES OF THE RECOMMENDATIONS TO MEMBERS OF THE ASSOCIATION. 11/16/79 - AGA LTR: THE COORDINATING GROUP FOR PIPELINE SAFETY DID NOT TAKE ACTION ON THIS ITEM SINCE IT INVOLVED DAMAGE TO A LIQUID LINE. HOWEVER, AGA HAS LONG BEEN A STRONG SUPPORTER OF THE 'ONE-CALL' SYSTEM AS EVIDENCED BY LETTER OF AUGUST 8, 1975, TO OUR MEMBER COMPANIES." }, { "addresseeAcronym": "INGAA", "addresseeOrganizationType": "A-Associations", "isFromNtsb": true, "communicationDate": "1980-02-14", "communicationType": "Official Correspondence", "communicationContents": "" } ] } ], "jurisdiction": "US" } ```