Blocked Drains Birchfield Updated Info

| Impact Category | Metric | Observations | |----------------|--------|--------------| | | Direct repair cost (average per incident) | £7,200 (CCTV + cleaning) – £38,500 (partial pipe replacement) | | | Indirect cost (property damage) | 12 % of households reported water ingress, average claim £3,800 | | Public Health | Mosquito breeding sites (Larval density index) | 2.3× higher in blocked‑drain zones vs. control zones | | | Reported sewer‑gas odours | 23 incidents (2024) → 4 complaints per incident | | Environmental | Surface‑water quality (BOD) | Elevated BOD (average 15 mg/L) in downstream Birchfield Brook after blockages | | | Carbon footprint (repair activities) | Approx. 150 t CO₂e/year from diesel‑powered cleaning trucks |

Pouring cooking grease down the kitchen sink is a major cause of clogs. As it cools, it solidifies in the pipes, creating "fatbergs" that trap other debris. blocked drains birchfield

Drainage issues in Birchfield often stem from a few recurring culprits: | Impact Category | Metric | Observations |