Case study · Sewer line
1947 Old Town Arvada bungalow with a collapsed clay sewer line. 78-ft pipe-burst HDPE replacement, two access pits, driveway intact. Sewage backup at 6am, line flowing at 5pm.
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Owner called at 6:12am — sewage backing up into both the basement floor drain and the first-floor toilet. Diego rolled the camera truck. Scope at 42 ft showed a 6-inch belly with a hairline crack opening into a partial collapse. Standard open-cut would have meant the entire driveway (60 ft of 4-inch concrete poured 1996) plus the front strip of landscaping. Trenchless pipe-burst — 2 access pits instead — was clearly the right play.
TRIC pneumatic head pulls a new 4 in HDPE pipe through the host clay, fragmenting the old line as it advances. Two pits: a 4x4 ft entry pit at the city tap (sidewalk-adjacent), a 4x4 ft exit pit just outside the foundation. Total surface disruption: ~30 sq ft of grass, restorable. Driveway untouched.
Arvada Public Works permit pulled mid-morning with photo evidence of the collapse from the camera scope. Locate + mark completed by 11am. Excavation crew dug the two pits; pipe-burst rig set up by noon; pull completed by 1pm. Cleanout installed to grade per current Arvada code (the original 1947 line had none). Final scope confirmed full pipe through to the city tap.
Line flowing by 5pm, same day. Family used a hotel two nights — we paid for it under our emergency-response policy when the timeline is going to push past dinner. New HDPE has a 50-year manufacturer warranty; we cover workmanship for 2 years. Driveway, landscaping, mature elm tree all intact.
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