| 1 | Penstock | 5 | FARS Water & Wastewater | ESTAHBAN Wastewater Treatment Plant | S.S. 304 |
| 2 | Penstock | 2 | KHORASAN RAZAVI Water & Wastewater co. | GOLBAHAR Wastewater Treatment Plant | S.S 304 |
| 3 | Penstock | 2 | Spinas co. | PARKAND Wastewater Treatment Plant | S.S 304 |
| 4 | Penstock | 8 | QOM Water & Wastewater Company | QOM No.2 Wastewater Treatment Plant | S.S 304 |
| 5 | Penstock | 8 | ISFAHAN Water & Wastewater co. | FOULAD SHAHR Wastewater Treatment Plant | Galvanized carvbon steel |
| 6 | Penstock | 2 | Hormozgan steel Co. | Hormozgan steel wastewater traetment plant | S.S. 304 |
| 7 | Penstock | Penstock | ISFAHAN Water & Wastewater co. | CHADEGAN Wastewater Treatment Plant | Galvanized carvbon steel |
