Table 1. Breakdown of sample collection by city. City estimated sewage coverage and details of the sewage treatment plants (STP) are included. MLD (Million-liter per day).
| Coimbatore | Tiruppur | Madurai | |
|---|---|---|---|
| Sewage coverage | ~ 7% | ~17-18% | ~70% |
| Fecal Sludge (FS) sampling | Yes | Yes | No |
| Biosolids sampling | Yes | No | Yes |
| Sewage Treatment Plant (STP) | Ukkadam | Not evaluated | Avaniyapuram (AV) and Sakki
Magalam (SK) |
| Flow to STP (MLD) | 25-30 | - | 20-25/10-15 |
| Collection date | November 2016, Jan 2017 | Jan 2017, July 2017, Feb-March 2018 | December 2016 |