GrandRapidsSewerLineRepair.com Research
Sewer Infrastructure Research
Source-traceable statistics, datasets, and reference material on U.S. sewer infrastructure — each figure labeled by what it measures and what it leaves out. Each number is labeled by what it measures and what it doesn't.
This section contains no service-request forms, provider recommendations, paid placements, affiliate links, or commercial calls to action. It publishes reusable, source-traceable reference material with documented methods, limitations, source records, and version information.
Published Reference Pages
Statistics · Updated July 2026
Sewer Backup & Sewer Line Failure Statistics
The EPA's 23,000–75,000 SSO estimate, $97.4 billion in sewer rehab needs, state rankings, insurance data, trend indicators — each separated by what it measures.
Read →Database · Updated July 2026
Sewer Pipe Lifespan by Material Database
Evidence-graded records for 10 materials — clay (130–142 yr field study), PVC (98–288 yr model), concrete (down to 10 yr in H₂S), Orangeburg, asbestos-cement, and more. Every figure labeled by source type.
Read →Database · Updated July 2026
Sewer Lateral Inspection Requirements by City
Point-of-sale sewer rules verified across CA, MN & PA — which cities require an inspection before selling, what test is accepted, certificate validity, and the San Rafael two-district case study.
Read →Database · Updated July 2026
Michigan Sewer Line Responsibility & Backup Claim Database
Who owns the sewer lateral in 25 Michigan jurisdictions, where the boundary falls, where to file a backup claim, and the 45-day written-notice deadline under MCL 691.1419 — compared from official sources.
Read →About This Research Section
GrandRapidsSewerLineRepair.com Research is the noncommercial research and reference section of GrandRapidsSewerLineRepair.com. It publishes U.S. sewer infrastructure data with source citations, documented methodology, stated limitations, and explicit statements of what each statistic does and does not measure.
This section contains no service-request forms, provider recommendations, paid placements, affiliate links, or commercial calls to action. When a reliable national count does not exist in the sources we reviewed, we report the gap rather than fill it with a figure we cannot stand behind.