Environmental Information Request (EIR) data logs

You can view our latest EIR logs here. 

Baitings reservoir

EIR disclosure log 2026

Reference number 

Request Details

Disclosure Status

Attachments

PEIR 178

Total number of leaks reported, fixed and the cost of repair on customer supply pipes for 2025

Partial Disclosure (No data held)

PEIR 178

PEIR 179

Details of any STW closures, conversion to Pumping Station and pumping foul load to nearby sewage treatment facility.

Full Disclosure

PEIR 179

PEIR 180

Route of the sewer network from Shepley to Huddersfield and details of Huddersfield WwTW

Partial Disclosure (No data held)

PEIR 180

PEIR 181

PFAS testing from the Embasy reservoir

Full Disclosure

PEIR 181

PEIR 182

Water quality sampling results for Leeds LL Robin Hood WSZ

Full Disclosure

PEIR 182

PEIR 183

Old Whittington STC Tankers and Transportation

Full Disclosure

PEIR 183

PEIR 184

Seven Lakes Country Park Asset Maps, Connection Status and Internal Records

Partial Disclosure (No data held)

PEIR 184

PEIR 185

Information regarding Capital Scheme YW204687 East Ness Works and Hovingham Water Supply

Partial Disclosure (No data held)

PEIR 185

PEIR 186

Internal Review of location, size or capacity, historical output, condition of unused water supply assets

Partial Disclosure (National Security)

PEIR 186

EIR internal review data

PEIR 186 internal review response

PEIR 187

Total number YW cleaned out or operated on a company stop cock in the highway serving a single property

Partial Disclosure (No data held)

PEIR 187

PEIR 188

Telematics data for YW vehicles for 12 months

Partial Disclosure (No data held/Personal data)

PEIR 188

Copy of Aug CO2 data

Copy of Aug movement data 

Copy of Sept CO2 report 

Copy of Sept movement data 

Copy of Oct CO2 data

Copy of Oct movement data

Copy of Nov CO2 data

Copy of Nov movement data

Copy of Dec CO2 data

Copy of Dec movement data

PEIR 189

Redmires Reservoir levels and repairs

Full Disclosure

PEIR 189

PEIR 190

Report for planning permission of Dewsbury Riverside Developments and WwTW

Partial Disclosure (No data held)

PEIR 190

PEIR 191

Deliveries and trip to and from Colburn STW, total number of discharges into River Swale within 12 months

Full Disclosure

PEIR 191

PEIR 192

Information relating to

 BAFF (Biological Aerated Flooded Filter), associated operational practices, incident history, and future planning.

Partial Disclosure (No data held)

PEIR 192

PEIR 193

Confirmation Riverside Caravan Park and Bentham Golf Club are connected to the water mains

Full Disclosure

PEIR 193

PEIR 194

Annual tonnage, charging structure, parameters and frequency of testing for Sludge

Full Disclosure

PEIR 194

PEIR 195

Risk assessments, TTRO’s and paperwork relating to capital scheme YW.204750

Partial Disclosure (Personal data/ Commercially sensitive/National Security)

PEIR 195

EIR - Low Mill Lane Works - Addingham - Nov 2025

EIR - Low Mill Lane Works - Addingham - Dec 2025

EIR - permit

Plan and manage roadworks - application

TTRO road closure application 2025 Low Mill Lane Nov

PEIR 196

Heavy metal mining impact on the River Wharfe

Full Disclosure

PEIR 196

PEIR 197

CSO Discharge figures for Ellerton WwTW

Full Disclosure

PEIR 197

PEIR 198

Frequency of lateral drain, sewer and pumping station blockages in YW catchment area

Partial Disclosure (Material within the course of completion)

PEIR 198

PEIR 199

Brookhouse Hill CSO recorded pollutions

Full Disclosure

PEIR 199

PEIR 200

Drax Power Station data centre plans

Non Disclosure (No data held)

 

PEIR 200

PEIR 201

Geospatial data for the wastewater catchment areas

Full Disclosure

PEIR 201

Level 3 cycle 1 data

PEIR 202

Pollution incident affecting Scout Dike Reservoir

Full Disclosure

PEIR 202

PEIR 203 Sewer and treatment works capacity calculations for Pickering   Full Disclosure

PEIR 203.pdf

PEIR 204 Water usage for data centres for 5 years  Non Disclosure (No data held) 

PEIR 204.pdf

PEIR 205 Information, reports and correspondence for Top Withens  Non Disclosure (No data held) 

PEIR 205.pdf

PEIR 206 Register of YW prosecutions  Partial Disclosure (Material within the course of completion) 

PEIR 206.pdf

Prosecutions Register EIR

PEIR 207 FPF activation meters for all YW Sites  Full Disclosure

PEIR 207.pdf

EIR Response.Csv

PEIR 208 Storm overflow setting and tank capacity   Partial Disclosure (No data held) 

PEIR 208.pdf

EIR Eir Request Overflow

PEIR 209 Upgrades for Colburn STW  Full Disclosure

PEIR 209.pdf

PEIR 210 Dewsbury STW for Dewsbury and Mirfield Development   Partial Disclosure (No data held) 

PEIR 210.pdf

PEIR 211 Annual revenue, profits, breakdown of income for Biosolids and Trade effluent consents  Partial Disclosure (No data held) 

PEIR 211.pdf

PEIR 212 Total fresh water treatment plants and maintenance   Partial Disclosure (National Security) 

PEIR 212.pdf

PEIR 213 Internal review of planning applications where sewage capacity is inadequate  Full Disclosure 

PEIR 213.pdf

PEIR 214 2001 Water mains rehabilitation cleaning scheme  Non Disclosure (No data held) PEIR 214.pdf
PEIR 215 Number and duration of spill discharges for CSO’s at River Wharfe for 2 years  Full Disclosure 

PEIR 215.pdf

Reference Number EIR

PEIR 216 Drinking water raw laboratory test results for BD18  Partial Disclosure (No data held) 

PEIR 216.pdf

PEIR 217 Asbestos cement water mains percentage  Full Disclosure 

PEIR 217.pdf

PEIR 218 Air valves on water mains and cryptosporidium  Full Disclosure 

PEIR 218.pdf

PEIR 219 Aldwarke WWTW  Full Disclosure 

PEIR 219.pdf

PEIR 220 PFAS for HU16  Partial Disclosure (No data held) 

PEIR 220.pdf

EIR (1)

EIR (2) 

EIR (3)

PEIR 221 Private mains serving 16+ properties  Non Disclosure (No data held) 

PEIR 221.pdf

PEIR 222 Trade effluent consents register  Full Disclosure 

PEIR 222.pdf

PEIR 223 Tanker and lorry movements for Kirk Hammerton WwTW  Full Disclosure 

PEIR 223.pdf

PEIR 224 Water supply for Scarborough Partial Disclosure (Personal data) 

PEIR 224.pdf

EIR All WQ YTD 2026 

EIR Water Supply Zones Key

EIR All WQ data 2025

EIR All WQ Data Nov Dec 2024

EIR All WQ Data Oct2025 to end Dec 2025

PEIR 225 Toxicology Reports  Full Disclosure 

PEIR 225.pdf

EIR All WQ YTD 2026 

EIR Water Supply Zones Key

EIR All WQ data 2025

EIR All WQ Data Nov Dec 2024

EIR All WQ Data Oct2025 to end Dec 2025

PEIR 226 Discharges in South Cliff, Scarborough  Full Disclosure 

PEIR 226.pdf

PEIR 227 Total daily volumes for all WwTW  Full Disclosure 

PEIR 227.pdf

EIR 2025 TDV csv

PEIR 228 Signed liability, water cycle, treatment and water quality results   Partial Disclosure (No data held) 

PEIR 228.pdf

EIR 

PEIR 229 S104 Bond agreements  Partial Disclosure (Out of scope/Commercial sensitivity) 

PEIR 229.pdf

PEIR 230 Telemetry data for Scorton SPS  Full Disclosure 

PEIR 230.pdf

PEIR 231 Intensive pig farming installations  Non Disclosure (No data held) 

PEIR 231.pdf

PEIR 232 Volume of treated sewage discharged from WwTW   Partial Disclosure (No data held) 

PEIR 232.pdf

2021-2022

2022-2023

2023-2024

2024-2025

2025 2026

PEIR 233 Design and operation of water storage and supply infrastructure for Bentham  Full Disclosure 

PEIR 233.pdf

PEIR 234 Number and revenue of trade effluent consents granted in 2026  Full Disclosure 

PEIR 234.pdf

PEIR 235 PVC Water mains, VCM testing results and risk assessments   Partial Disclosure (National Security/no data held) 

PEIR 235.pdf

EIR Age Of Material

EIR Distribution Mains By Area

EIR Trunk Mains By Area

PEIR 236 Farm sites sludge storage  Partial Disclosure (No data held/personal data/Material in the course of completion) 

PEIR 236.pdf

Yorkshire Water Services Limited BAS Certificate 13.12.2026

YW Sludge Return (Table 3ci) 2014-2025

PEIR 237 PFAS for Embsay, High Bentham and Clapham   Full Disclosure 

PEIR 237.pdf

EIR PFAS

PEIR 238 Sond readings from Richmond STW  Full Disclosure 

PEIR 238.pdf

EIR

PEIR 239 Calderdale Energy Park 
Non Disclosure (No data held) 

PEIR 239.pdf

PEIR 240 EDM data for 2020-2026  Full Disclosure 

PEIR 240.pdf

PEIR 241 Works undertaken in AMP7 and AMP8 for discharges on CSO’s  Full Disclosure 

PEIR 241.pdf

PEIR 242 Reservoir safety and environmental risk   Full Disclosure 

PEIR 242.pdf

PEIR 243 Schemes in Knottingley 2026  Full Disclosure 

PEIR 243.pdf

PEIR 244 Internal review for Information, reports and correspondence for Top Withens  Partial Disclosure (No data held/personal data/commercial sensitivity) 

PEIR 244.pdf

Top Withens Report Redacted (1)

Top Withens

EIR External Correspondence

13958 H RP 070 R1 Top Withins (Stanbury Moor) Redacted

PEIR 245 Schemes and performance for Barnoldswick  Full Disclosure 

PEIR 245.pdf

PEIR 246 Measures taken for STW and enforcement orders  Full Disclosure 

PEIR 246.pdf

PEIR 247 Contractors for waste management  Full Disclosure 

PEIR 247.pdf

PEIR 248 Pre 1980s uPVC pipes  Full Disclosure 

PEIR 248.pdf

EIR (EIR UPVC Pre 1980

PEIR 249 Information regarding Hebden Bridge infrastructure  Partial Disclosure (No data held/personal data/national security) 

PEIR 249.pdf

EIR Job History

EIR Incident Report 1

PEIR 250 Civil Engineering Specification for the Water Industry (CESWI) for design classification of service reservoirs.  Non Disclosure (Out of scope) 

PEIR 250.pdf

PEIR 251 Flow data for STW  Partial Disclosure (No data held) 

PEIR 251.pdf

York Naburn STW

Tadcaster STW

Seamer STW

Knostrop STW

Ilkley STW

Goathland STW

Flamborough Village STW

Calder Vale STW

Blackburn Meadows STW

PEIR 252 Number of metres of pipes carrying drinking water and lead pipes  Full Disclosure 

PEIR 252.pdf

PEIR 253 Individual spills for Welham Road North  Full Disclosure 

PEIR 253.pdf

PEIR 254 Unmonitored discharge locations for Holme Brook Chesterfield  Full Disclosure

PEIR 254.pdf

PEIR 255 Discharge data for all monitored CSO’s  Full Disclosure 

PEIR 255.pdf

PEIR 256 Discharge activity at Copley STW  Full Disclosure 

PEIR 256.pdf

PEIR 257 CSO’s and WwTW that discharge to inland watercourses.  Partial Disclosure (no data held) 

PEIR 257.pdf

EIR Stop Start File 2021 ISO Format

EIR Stop Start File 2022 ISO Format

EIR Stop Start File 2023 ISO Format

EIR Stop Start File 2024 ISO Format

EIR Stop Start File 2025 ISO Format

PEIR 258 CCTV, asset register, maintenance logs for Wyke Beck culvert   Partial Disclosure (no data held) 

PEIR 258.pdf

PEIR 259 Surface water drainage rebate  Full Disclosure 

PEIR 259.pdf

PEIR 260 Total capacity for reservoirs  Full Disclosure 

PEIR 260.pdf

EIR

PEIR 261 Three Oaks Renewable Energy Park  Non Disclosure (no data held) 

PEIR 261.pdf

PEIR 262 Misconnections at Gledhow Beck and Gledhow Lake, Leeds  Partial Disclosure (no data held) 

PEIR 262.pdf

PEIR 263 Ecological reports for Carver Fields, Sheffield  Partial Disclosure (Protected species) 

PEIR 263.pdf

260129 STA007 015 Rivelin Valley Arb Impact Report 005 BS Merged Redacted

PEIR 264 Gouthwaite reservoirs and associated watercourses  Partial Disclosure (Out of scope/personal data) 

PEIR 264.pdf

EIR

PEIR 265 Pollution events 2016-2026  Partial Disclosure (no data held/Material in the course of completion) 

PEIR 265.pdf

PEIR 266 Trade effluent consents and revenue for 2026  Full Disclosure 

PEIR 266.pdf

PEIR 267 Drainage and Wastewater Management Plan (DWMP)  Full Disclosure

PEIR 267.pdf

Yws Dwmp Annual Progress Report 2026

Yws Dwmp Annual Progress Report 2026 1

Yws Dwmp Annual Progress Report 2026 2

PEIR 268 Trade load for Burley in Wharfdale, Harrogate South and Ripon Fisher STW  Full Disclosure

PEIR 268.pdf

PEIR 269 Final effluent temperature, flow and quality data for Blackburn Meadows WwTW  Full Disclosure

PEIR 269.pdf

Blackburn Meadows FLOW (Md) EIR 1370

EIR F.E

EIR L.D

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