Information here relates to the period 1960s through to 2000 as told to me by an ex STW employee who worked on the Hayfield Water Supply Scheme during this period. Any info about pre 1960 is from hearsay from other older employees.
This is taken from my rough notes and is all unchecked. Comments in [asides] square brackets are my notes to myself.
1. Harry Moor supplied Mellor, Marple? and Hayfield. (probably not Marple!) 2. This was all by gravity via 3 reservoirs. (I presume up near Harry Moor Spring) 3. The top Division Tank supplied Mellor (via a 5" main) and Maple Bridge 4. Under the lid the Harry Moor Spring is a very large chamber with 12 or 15 pipes coming into it. 5. The raw water pipe from the Harry Moor Spring gravitated to Hayfield feeding several large farms and some properties on the way to Kinder Bank DSR (s). 6. There was a verbal agreement with Stockport UDC that the Mellor/Hayfield supply could be back fed by opening an interconnecting valve at times of drought. [assume this was pre 1962 NDWB?] The interconnection was where the 5" main came into Mellor. 7. STW had a formal agreement with North West Water Authority to take treated water from the 27" main from Kinder Res feeding Stockport. An underpressure connection was made at Kinder Road and it was pumped and back fed into the Division Tank at Hayfield. [I'm not sure if this was a constant supply instead of Harry Moor or just in times of drought?] 8. When the North Derbyshire Water board was formed on the 1st Oct 1963 [info from the Chapel-en-le-Frith RDC - MOH report 1962] it took over the Water Departments of Councils in Derbyshire such as Chesterfield UDC, Buxton UDC and Chapel-en-le-Frith RDC. This is why the out of Derwent catchment areas were administered by STW. Chapel-en-le-Frith had previously taken over from Hayfield RDC. 9. Sometime in late 80 and early 90s, STW laid a main from Lower Tank to a Pumping Station and Treatment Works at Bowden Bridge Car Park and a new main to convey treated water all the way to Kinder to feed properties there. [unsure if I have correctly transcribed of all this!] 10. The Pumping Station at Bowden Bridge (named Hayfield) is a Hydrostatic Pumping Station - [I call it a Booster - with Air vessel] 11. Possibility of supply failure at Harry Moor Spring due to cryptosporidium. This is not treatable by simple chlorination and it needs more sophisticated filtration treatment. This was deemed too be costly in capital expenditure and running costs over pumping of water from Bamford. 12. Birch Vale Pumping Station was built and 100m of main laid between The Grouse Public House from a connection to the United Utilities main. The public house is no longer a pub. 13 Top res at Kinder abandoned and supply from Harry Moor disconnected. Booster to Highgate Road? 14. United Utilities in 1998? decided to close down their treatment works near Kinder and build it elsewhere. [Wybersley?] This made the connection to the 27 unusable because it was now raw water. STW took the decision to supply Hayfield from Bamford despite the huge cost of pumping!
This is taken from my rough notes and is all unchecked. Comments in [asides] square brackets are my notes to myself.
1. Harry Moor supplied Mellor, Marple? and Hayfield. (probably not Marple!)
2. This was all by gravity via 3 reservoirs. (I presume up near Harry Moor Spring)
3. The top Division Tank supplied Mellor (via a 5" main) and Maple Bridge
4. Under the lid the Harry Moor Spring is a very large chamber with 12 or 15 pipes coming into it.
5. The raw water pipe from the Harry Moor Spring gravitated to Hayfield feeding several large farms and some properties on the way to Kinder Bank DSR (s).
6. There was a verbal agreement with Stockport UDC that the Mellor/Hayfield supply could be back fed by opening an interconnecting valve at times of drought. [assume this was pre 1962 NDWB?] The interconnection was where the 5" main came into Mellor.
7. STW had a formal agreement with North West Water Authority to take treated water from the 27" main from Kinder Res feeding Stockport. An underpressure connection was made at Kinder Road and it was pumped and back fed into the Division Tank at Hayfield.
[I'm not sure if this was a constant supply instead of Harry Moor or just in times of drought?]
8. When the North Derbyshire Water board was formed on the 1st Oct 1963 [info from the Chapel-en-le-Frith RDC - MOH report 1962] it took over the Water Departments of Councils in Derbyshire such as Chesterfield UDC, Buxton UDC and Chapel-en-le-Frith RDC. This is why the out of Derwent catchment areas were administered by STW. Chapel-en-le-Frith had previously taken over from Hayfield RDC.
9. Sometime in late 80 and early 90s, STW laid a main from Lower Tank to a Pumping Station and Treatment Works at Bowden Bridge Car Park and a new main to convey treated water all the way to Kinder to feed properties there. [unsure if I have correctly transcribed of all this!]
10. The Pumping Station at Bowden Bridge (named Hayfield) is a Hydrostatic Pumping Station - [I call it a Booster - with Air vessel]
11. Possibility of supply failure at Harry Moor Spring due to cryptosporidium. This is not treatable by simple chlorination and it needs more sophisticated filtration treatment. This was deemed too be costly in capital expenditure and running costs over pumping of water from Bamford.
12. Birch Vale Pumping Station was built and 100m of main laid between The Grouse Public House from a connection to the United Utilities main. The public house is no longer a pub.
13 Top res at Kinder abandoned and supply from Harry Moor disconnected. Booster to Highgate Road?
14. United Utilities in 1998? decided to close down their treatment works near Kinder and build it elsewhere. [Wybersley?] This made the connection to the 27 unusable because it was now raw water. STW took the decision to supply Hayfield from Bamford despite the huge cost of pumping!