Date:
Thursday, January 24, 2019
- Haslington Pump Station provides water to areas in Haslington, Golden Grove and Nabaclis. These areas has eleven flush out valve throughout the three villages. Eight of them were accessible and three were inaccessible as they were covered with dirt or in the drains below. The valves were opened maximum flow for ten minutes then they were reduced to minimum flow and left for one to four hours (depending on the quality of the water). Flushouts #4 and #6 were under drains (see Fig 1 and Fig 2), as such, these were not flushed as the possibilities are if left open and there’s a power failure the water in the drain will make its way into the distribution lines.
- Flushout #8 was covered with dirt, as such, it was difficult to locate the valve and flush out line.
- Victoria Pump Station provides water to areas in Cove and John and Victoria. There are eight flushout valves in these areas. Flushouts #1, #2 and #3 are all located in Cove and John village. None of these were accessible as they were all covered under dirt and couldn’t be located.
- There were no more flushouts in the area although it was observed that the village is very large and populated. Flushout #4 (Victoria Seawall) was flushed but requires an extension on the discharge pipe to lead into the drain.
- Flushout #6 (Victoria South East of Gas Station Rd.) couldn’t be flushed due to valve tube being covered in dirt, bricks and bottles.
- The water on initiation of the flushouts was very turbid and after hours of flushing the water quality improved with turbidity still higher than 5 NTU upon closure.
- Lowland Pump Station provides water to Lowland and Hope Villages. There are nine flushouts between these two villages. Flushout #1 (Nootenzuil public rd. north) valve stem dropped, as such, key was unable to turn valve to open. Flushout #2 (Nootenzuil Seawall) and Flushout #3 (Nootenzuil South – Next to Masjid), Flushout #5 (Lowland public rd.) and Flushout #9 (Hope public rd. North) needs extension to the discharge pipe.
- Flushout #7 (Hope backlands – South West) and Flushout #8 (Hope public rd. south) were both covered with dirt.
- Clonbrook Pump Station provides water Clonbrook, Ann’s Grove, Two Friends, Bee Hive and Greenfield. There are eleven flushouts between these villages. Flushout #5 (Ann’s Grove backlands – South) pipe was under ground, it was inappropriate for sampling, however, it was flushed for 30 minutes under supervision.
- Flushout #6 (Ann’s Grove backlands – South West) were continuously flowing due to tampering by the villagers with the objective of accessing water. This caused “rounding” of the valve stem which prevented closure.
- Flushout #7 (Clonbrook East) was unable to be located since it was covered with dirt. Samples were unable to be tested from Flushout #9 (Bee Hive North) as the discharge pipe is in large bushes and swamp, it was however flushed for 30 minutes under supervision.
- Flushout #10 (Bee Hive - North West) valves were unable to turn as it was seized, as such, no test nor any flushout were done
- Unity Pump Station provides water to the Unity village which has seven flushouts. All seven flushouts were successfully executed the flushout times were extended because of high iron content and flocs durations.
- Flushout #1, 2, 4 and 7 need extension at the discharge pipe.
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