# S.C. Code Regs. 103-493 - Leakage **Citation:** S.C. Code Regs. 103-493 **Type / status:** regulation / current **Agency:** Public Service Commission of South Carolina **Effective:** 2008-05-23 **Published:** 2008-05-23 1. General. Any notice to the gas system of a leak or odor or notification of damage to gas facilities reported by any source shall constitute the need for immediate action by the gas system. In the event that the response time exceeded one (1) hour, the reason should be included in the report to the ORS as well as the grade level of the leak and other pertinent information. 2. Classification. Each gas system shall e ## Document text 1. General. Any notice to the gas system of a leak or odor or notification of damage to gas facilities reported by any source shall constitute the need for immediate action by the gas system. In the event that the response time exceeded one (1) hour, the reason should be included in the report to the ORS as well as the grade level of the leak and other pertinent information. 2. Classification. Each gas system shall establish procedures for classifying and repairing leaks meeting the requirements of this section: Grade 1-Grade 1 means a leak that represents an existing or probable hazard to persons or property and requires immediate repair or continuous action until the conditions are no longer hazardous. Grade 2-Grade 2 means a leak that is recognized as being nonhazardous at the time of detection but requires scheduled repair based on probable future hazard. Grade 3-Grade 3 means a leak that is nonhazardous at the time of detection and can be reasonably expected to remain nonhazardous. 3. Leakage Surveys. All buried piping not protected against corrosion in accordance with 49 C.F.R. Section 192, Subpart I, must be subjected to instrument leakage surveys as frequently as necessary, but at intervals not exceeding twelve months. 4. Vegetation Leakage Surveys. Vegetation type leak surveys are prohibited. HISTORY: Amended by State Register Volume 18, Issue No. 3, eff March 25, 1994; State Register Volume 32, Issue No. 5, eff May 23, 2008. ## Provenance - Official: Yes - Source: - Source ID: `sc-leg-pipeline-safety` - SHA-256: `c65ed8166ca1a4737c3b65d5614c5c98a12f817022a94fee051f30020f9b54e3` - Retrieved: 2026-08-20T11:28:25.511Z - Exported: 2026-08-23T16:23:34.425Z - Document slug: `sc-scr-103-493` ### Source metadata ```json { "jurisdiction": "US-SC", "documentClass": "regulation", "code": "South Carolina Code of Regulations", "publicationObservedOn": "2026-08-20", "certification": "49 U.S.C. 60105 intrastate-gas program", "hazardousLiquidSafetyJurisdiction": false, "interstateGasEnforcementJurisdiction": false, "dynamicFederalIncorporation": false, "sourceNote": "HISTORY: Amended by State Register Volume 18, Issue No. 3, eff March 25, 1994; State Register Volume 32, Issue No. 5, eff May 23, 2008.", "references": [ { "citation": "49 CFR 192", "referenceType": "federal_regulation", "url": "https://www.ecfr.gov/current/title-49/subtitle-B/chapter-I/subchapter-D/part-192" } ], "caveats": { "exactScope": "This bounded corpus contains 27 current, direct South Carolina gas-pipeline safety provisions: 14 provisions from Chapter 103, Article 4, including only pipeline-safety portions 103-412(2.6)-(2.7), and 13 provisions from the South Carolina Gas Safety Act of 1970, S.C. Code Sections 58-5-920 through 58-5-1070. The complete current Chapter 103 gas-systems article and complete current Gas Safety Act article are inventoried as the completeness boundary.", "excludedScope": "Customer deposits, billing, rates, certificates, economic service, routine metering, gas quality, curtailment, ordinary utility records, and related engineering provisions are adjacent or excluded and are not searchable. Chapter 58-36 excavation and one-call law, tariffs, dockets, orders, inspection forms, enforcement files, federal text, private standards, and non-gas programs require separate corpora. Interstate gas and all hazardous-liquid pipelines are excluded from the proven state-certification scope.", "applicability": "Applicability depends on the statutory definition of gas utility and pipeline facility, public-utility and gas-system status, commodity, facility type, intrastate or interstate status, federal jurisdiction, statutory exclusions for liquefied petroleum gas and anhydrous ammonia, waivers, and the text in force on the relevant date. PHMSA identifies South Carolina as certified for intrastate gas only and retains interstate gas and both intrastate and interstate hazardous-liquid enforcement. This connector does not infer hazardous-liquid certification.", "incorporation": "Regulation 103-490 and Sections 58-5-920, 58-5-970, and 58-5-1050 use rolling language for federal gas-safety standards as amended from time to time. Regulation 103-461 also points to editions of private standards referenced by federal rules. This connector links but does not reproduce incorporated federal or private standards and does not decide edition, preemption, or incorporation-validity questions.", "publication": "The South Carolina Legislature's current Code of Regulations index, official Chapter 103 PDF, and current Code of Laws HTML are the controlling publication set used here. Rule histories and statutory history notes support only the explicit events emitted; retrieval time is a publication observation, not a legal event or historical version.", "rights": "Official South Carolina and federal-government artifacts are retained with attribution and SHA-256 provenance. Public access does not establish unrestricted rights in site presentation, agency marks, forms, photographs, linked material, or incorporated private standards; private standards are not reproduced." }, "region": "SC" } ```