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D6981 - Severn Trent Water Authority - [20th cent]
1 - Services book - 1961-1965
2 - Plans taken from Contract book 'C' - [c.1900]
1 - Ordnance Survey sheets number 29, 2nd edition - 1900
2 - Ordnance Survey sheets number 34, 2nd edition - 1900
3 - Tinkersley conduit - [c.1900]
4 - Stancliffe tunnel - [c.1900]
5 - Sydnope syphon and Farley Tunnel - [c.1900]
6 - Farley Tunnel - [c.1900]
7 - Bentley Syphon - [c.1900]
8 - Lea Syphon sheet 1 - [c.1900]
9 - Lea Syphon sheet 2 - [c.1900]
10 - Sydnope syphon - Darley Dale Station - [c.1900]
11 - Bentley Syphon - Matlock Bridge Station - [c.1900]
12 - Lea Syphon - Cromford Station pegs 0-42 - [c.1900]
13 - Lea Syphon - Cromford Station pegs 42-84 - [c.1900]
14 - Lea Syphon - Cromford Station pegs 84-126 - [c.1900]
15 - Lea Syphon - Cromford Station pegs 126-End - [c.1900]
16 - Sydnope overflow pipe - Darley Dale and Cromford Stations - [c.1900]
17 - Bentley overflow pipe - Matlock Bridge Station - [c.1900]
18 - Sydnope syphon - Inlet and Outlet - [c.1900]
19 - Bentley syphon - Inlet and Outlet - [c.1900]
20 - Lea syphon - Inlet and Outlet - [c.1900]
21 - Derwent Water Board Syphon - [c.1900]
22 - Derwent Water Board Syphon outlet - [c.1900]
23 - Derwent Water Board observatories for tunnels, barrel covers, etc. - [c.1900]
24 - Tinkersley conduit stream crossing at 1400 feet and 3841 feet - [c.1900]
25 - Tinkersley conduit stream crossing at Peg 52 - [c.1900]
26 - Sydnope syphon stream crossing at Halldale Brook - [c.1900]
27 - Sydnope syphon stream crossing at Sydnope Brook - [c.1900]
28 - Bentley syphon stream crossing at Bentley Brook - [c.1900]
29 - Lea syphon stream crossing at Lea Brook - [c.1900]
30 - Manual value house - [c.1900]
31 - Lea Syphon automatic value house at 4645 feet - [c.1900]
32 - Manual valve wells on Lea Syphon, and air valves in fields and roads - [c.1900]
33 - Lea Syphon discharge pipes at 4316 feet and 8324 feet - [c.1900]
34 - Lea Syphon stream crossings at Peg 154 and overflow outlet - [c.1900]
35 - Derwent Water Board reflux valve - [c.1900]
36 - Ironworks to be provided by contractor - Inlet wells - [c.1900]
37 - Ironworks in syphon inlets, value houses, and manholes on cut-and-cover to be provided by contractor - [c.1900]
38 - Ironworks to be provided by contractor in syphon outlets, manual value houses, wetc. - [c.1900]
39 - Ironworks to be provided by contractor in discharge cylinders, air value casings, etc. - [c.1900]
40 - Outlet to float wells at 44' 5" Sydnope Station and wells on Lea Syphon - [c.1900]
41 - Well at outlet to float cylinders - [c.1900]
42 - Syphon Inlet - [c.1900]
43 - Syphon Inlet - [c.1900]
44 - Discharge wells above ground - [c.1900]
45 - Sydnope syphon - alteration to overflow pipe - [c.1900]
46 - Bentley syphon - alteration to overflow pipe - [c.1900]
47 - Lea syphon - alteration to overflow pipe - [c.1900]
48 - Ironworks to be provided by contractor - additional anmd amended items: overflow troughs; detail of lip of overflow; special C.I. pipe Patt A; and detail of cover over 36" valve - [c.1900]
49 - Manual valve well at 8324 feet on Lea Syphon - revised design for one line of pipes only - [c.1900]
3 - Ilkeston & Heanor Water Board water supply - 1905
Harpur Crewe family of Calke
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