Lead Service Line

{
  "id": "MLC-T-ENV-015515",
  "term": "Lead Service Line",
  "field": "Environment",
  "definition": "1. A service line made of lead which connects the water main to the building inlet and any lead pigtail, gooseneck or other fitting which is connected to such lead line.\n\n2. A service line made of lead which connects the water to the building inlet and any lead fitting connected to it.\n\n3. A service line made of lead which connects the water main to the building inlet and any lead pigtail, gooseneck or other fitting which is connected to such lead line. [Drinking Water Technical & Legal Terms]\n\n4. Service line made of lead, which connects the water main to the building inlet. A lead service line may be owned by the water system, owned by the property owner, or both. For the purposes of this subpart, a galvanized service line is considered a lead service line if it ever was or is currently downstream of any lead service line or service line of unknown material. If the only lead piping serving the home or building is a lead gooseneck, pigtail, or connector, and it is not a galvanized service line that is considered an LSL the service line is not a lead service line.\n\n5. Portion of pipe that is made of lead, which connects the water main to the building inlet. A lead service line may be owned by the water system, owned by the property owner, or both. For the purposes of this subpart, a galvanized service line is considered a lead service line if it ever was or is currently downstream of any lead service line or service line of unknown material. If the only lead piping serving the home is a lead gooseneck, pigtail, or connector, and it is not a galvanized service line that is considered a lead service line the service line is not a lead service line. For purposes of § 141.86(a) only, a galvanized service line is not considered a lead service line.",
  "subject": "General environmental",
  "references": [
    "Drinking Water Technical & Legal Terms",
    "Terms of Environment",
    "40 CFR 141.2 (CFR 2018)",
    "National Primary Drinking Water Regulations: Proposed Lead and Copper Rule Revisions Proposed Rule 84 FR 61684",
    "86 FR 4198; 40 CFR 141.2 (CFR 2021)"
  ],
  "url": "https://mlchart.com/terminology/environment/lead-service-line/"
}