Appendix A Input data and modelling outputs (Excel workbook)€¦ · Input data and modelling outputs (Excel workbook) APPENDIX A - WORKBOOK TO ACCOMPANY: Waverley Borough Council

A1 © AMEC Environment & Infrastructure UK Limited

16 December 2016 Doc Ref. ERea008i1R

Appendix A Input data and modelling outputs (Excel workbook)

APPENDIX A - WORKBOOK TO ACCOMPANY: Waverley Borough Council Wastewater Treatment Work Assessments Report

Workbook Tab Data Type Information contained in Tab Related report chapter

HOUSING DATA Proposed future housing growth numbers Chapter 2

Receiving Water DATA Receiving Water flow and quality data Chapter 2

DS WQ STANDARDS WFD Waterbody standards Chapter 2

WwTW DATA WwTW flow and quality data Chapter 2

1. GROWTH IN WwTW Growth allocated to WWtW Chapter 2

2. MODEL INPUT DATA Growth converted to Simcat Units Chapter 2

3. SUMMARY INPUT DATA Simcat Model Inputs and EA Guidance for Chiddingford Chapter 2

4. MODEL OUTPUTS Simcat Model Outputs Chapter 3

PHOSPHATE RESULTS Results of the modelling set out for conversion into graphical representation Chapter 3

BOD RESULTS Results of the modelling set out for conversion into graphical representation Chapter 3

AMMONIA RESULTS Results of the modelling set out for conversion into graphical representation Chapter 3

5. GRAPHS Graphical Outputs created for the main report Chapter 3

6. RQP MODELLING INPUTS Input data required for RQP runs Chapter 3

7. RQP MODELLING OUTPUTS

Modelling outputs where deterioration in WFD class or more than 10% deterioration

identified in Simcat Modelling Chapter 3

CHIDDINGFORD RQP OUTPUTS Chiddingford WwTW specific RQP Modelling, as no Simcat modelling Undertaken Chapter 3

MODELLING OUTPUTS

DATA RECEIVED

MODELLING INPUTS

This workbook contains all the baseline data and results for the Waverley Water Quality Assessment. The data within this workbook has beenb set out to clarify what data was used for the WQA and the detailed results in

order to support the conclusions noted in the main report. The information shows what data is held within each tab and also which chapter of the main report it is used and\or summarised in.

Source: \\rdg-fs1\shared\Projects\39169 Waverley BC WQA\D040 Design\HOUSING INFORMATION\Housing Trajectory for AMEC_Received 15th Nov.xlsx

Provided by: WAVERLEY BOROUGH COUNCIL - Gayle Wootton 15/11/2016

Growth Area WwTWs Completions

2013-2014

Completions

2014-2015

Completions

2015-2016

2016-2020 2021-2026 2027-2032 TotalsWwTWs

WwTW sample

point2016-2020 2021-2026 2027-2032 2016-2021 2021-2026 2026-2032

Chiddingfold Chiddingford 4 1 2 9 95 10 122 Chiddingford 5.6 57.3 6.1 5.6 57.3 6.1

Cranleigh Cranleigh 8 36 21 1282 113 67 1527 769.2 67.8 40.3 1012.9 686.0 927.5

Alfold Cranleigh 0 1 0 143 2 3 149 85.8 1.4 1.7

Dunsfold Cranleigh 0 0 0 85 2 7 94 50.9 1.1 4.2

Ewhurst Cranleigh 0 2 1 64 1 3 71 38.6 0.5 2.0

Hascombe Cranleigh 0 1 0 4 0 0 6 2.5 0.2 0.3

Dunsfold

Aerodrome Cranleigh 110 1025 1465 2600 66.0 615.0 879.0

Elstead Elstead 2 5 1 85 58 16 167 51.0 34.6 9.5 51.9 35.3 12.9

Peper Harow Elstead 0 2 7 0 0 5 14 0.1 0.2 2.8

Thursley Elstead 0 0 1 1 1 1 4 0.8 0.5 0.5

Farnham Farnham 53 62 65 1662 248 258 2347 997.2 148.6 154.6 1022.2 153.9 163.8

Churt Farnham 0 0 4 7 2 2 15 4.1 1.1 1.4

Dockenfield Farnham 0 0 2 7 2 2 12 4.0 0.9 1.1

Frensham Farnham 2 0 3 14 3 8 31 8.6 2.1 5.0

Tilford Farnham 1 0 1 14 2 3 21 8.3 1.1 1.7

Godalming Godalming 25 82 146 686 98 242 1279 411.7 59.0 145.0 483.5 319.2 182.8

Busbridge Godalming 0 2 57 67 2 22 149 40.0 0.9 13.0

Hambledon Godalming 0 0 0 2 0 0 3 1.3 0.2 0.3

Witley Godalming 7 7 2 51 432 41 539 30.5 259.0 24.6

Haslemere Haslemere 37 36 27 478 89 170 837 Haslemere PWEE0100 286.9 53.6 101.8 286.9 53.6 101.8

Bramley Shamley Green 2 3 1 59 10 19 95 35.5 6.2 11.4 44.1 8.3 13.9

Wonersh Shamley Green 2 1 2 14 3 4 27 8.6 2.1 2.5

Totals 143 241 343 4845.14 2189.35 2348.02 10109.51

Housing numbers Increases in discharge volume (m3\d) Sub totals

Shamley Green

Godalming

PWEE0187

PWEE0410

PWEE0078

Farnham

Elstead

PWEE0071

PWEE0059

Cranleigh

RIVER QUALITY

SCOURCE: EA DATA RECEIVED 17th Nov 16 - TANIA INGLESIAS

ASSUMPTIONS

SMPT_REF - STW SMPT_LNAME WQ points Easting Northing WQ Easting Northing all < are removed in raw data and used at face value

PLDE0003 Aldershot STW PLDR0003 488190.00 149950.00 PLDR0002 488500.00 151930.00 Where new data is not avaiable for a sample site the existing Simcat values will be used.

PWEE0059 Cranleigh STW PWER0004 503970.00 139080.00 PWER0006 503610.00 141920.00

PWEE0071 Elstead STW PWER0110 490530.00 143810.00 PWER0046 492181.00 143980.00

PWEE0078 Farnham STW None PWER0126 485320.00 147210.00

PWEE0410 Godalming STW PWER0029 499260.00 145500.00 PWER0151 499690.00 146440.00

PWEE0187 Shamley Green STW PWER0006 503610.00 141920.00

PWEE0100 Haslmere STW None PWER0026 487320.00 132620.00

F0003143 Chiddingfold STW None F0003142 498100.00 136800.00

BOD (2010 - 2015) Amm (2010 - 2015) P (2010 - 2015) BOD (2010 - 2015) Amm (2010 - 2015) P (2010 - 2015)

Mean SD Mean SD Mean SD Mean SD Mean SD Mean SD

Aldershot STW PLDR0003 1.99 1.10 0.09 0.09 0.08 0.05 PLDR0002 2.09 0.83 0.35 0.30 0.41 0.32

Cranleigh STW PWER0004 #DIV/0! #DIV/0! 0.03 0.00 0.09 0.03 PWER0006 #DIV/0! #DIV/0! 0.03 0.00 0.12 0.07

Elstead STW PWER0110 #DIV/0! #DIV/0! 0.05 0.03 0.17 0.04 PWER0046 #DIV/0! #DIV/0! 0.05 0.03 0.21 0.05

Farnham STW None PWER0126 #DIV/0! #DIV/0! 0.25 0.70 0.45 0.25

Godalming STW PWER0029 #DIV/0! #DIV/0! 0.04 0.02 0.15 0.03 PWER0151 #DIV/0! #DIV/0! 0.08 0.06 0.16 0.03

Shamley Green STW PWER0006 #DIV/0! #DIV/0! 0.03 0.00 0.12 0.07

Haslmere STW None PWER0026 #DIV/0! #DIV/0! 0.12 0.10 0.28 0.13

Chiddingfold STW None F0003142 2.00 #DIV/0! 0.13 0.15 0.10 0.20

RVER FLOW POINTS

Flow Gauging Station

name NGR mean (m3/s)

95%ile low flow

(m3/s) mean (Ml/d)

95%ile low

flow (Ml/d)

FARNHAM SU8367346263 0.94 0.25 81.39 21.73

MILFORD GOLF COURSE SU9556242305 0.04 0.00 3.05 0.00

TILFORD SU8746343283 3.65 1.55 314.95 133.92

Upstream Downstream

UPSTREAM DOWNSTREAM

SOURCE: Data provided by the EA

Contact Tania Ingesias Emails

PERMIT:

STW

Monitoring

point

reference

Flow

(mean)

Ml/d

Flow

(SD)

Ml/d

BOD average

(2010- 2015)

BOD SD

(2010- 2015)

Amm average

(2010 - 2015)

Amm SD

(2010 - 2015)

P average

(2010 -

2015)

P SD (2010 -

2015)

dwf

(m3/d) bod

Ammoniacal

Nitrogen as N p

Aldershot STW PLDE0003 10.55 4.61 2.13 0.62 0.14 0.04 0.26 0.12 9 95 PERCENTILE 50 MAXIMUM 2 95 PERCENTILE 20 MAXIMUM 2 MAXIMUM

Cranleigh STW PWEE0059 4.55 1.92 4.42 2.03 0.95 0.81 0.59 0.34 4540 MAXIMUM 8 95 PERCENTILE 50 MAXIMUM 3 95 PERCENTILE 14 MAXIMUM 2 MAXIMUM

Elstead STW PWEE0071 1.66 0.72 8.66 2.97 1.38 1.05 #DIV/0! #DIV/0! 1591 MAXIMUM 20 95 PERCENTILE 56 MAXIMUM 10 95 PERCENTILE 37 MAXIMUM

Farnham STW PWEE0078 7.61 4.39 2.35 1.13 0.40 1.76 1.47 0.98 13300 MAXIMUM 10 95 PERCENTILE 50 MAXIMUM 3 95 PERCENTILE 14 MAXIMUM 2 MAXIMUM

Godalming STW PWEE0410 8.13 1.94 6.84 2.17 1.35 1.02 0.99 0.70 8749 MAXIMUM 10 95 PERCENTILE 50 MAXIMUM 4 95 PERCENTILE 17 MAXIMUM 2 MAXIMUM

Shamley Green STW PWEE0187 3.10 0.93 7.05 2.46 1.33 0.81 #DIV/0! #DIV/0! 2850 MAXIMUM 30 95 PERCENTILE 64 MAXIMUM 5 95 PERCENTILE 20 MAXIMUM

Haslemere STW PWEE0100 4.76 1.09 2.47 1.18 0.26 0.37 1.26 0.46 15 95 PERCENTILE 50 MAXIMUM 3 95 PERCENTILE 14 MAXIMUM 2 MAXIMUM

Chiddingfold wwtw F0003143 0.84 0.41 5.77 1.85 1.62 1.02 0.85 0.21 639 20 56 8 20 1

ASSUMPTIONS:

IN RAW DATA ALL < values removed and taken at face value

Where maximum values are given and these vary seasonally (Ammonia), the summer (low flow) value has been selected

CURRENT:

Source: \\rdg-fs1\shared\Projects\39169 Waverley BC WQA\D040 Design\EA DATA\Finalised Waverley Information\Waverley WFD information.xlsx

Provided by the EA

Upstream sample point used as a Proxy where D/S is not available

D/s sample point Downstream sample point is not within the .DAT file. The WQ requirements for this point are still used.

BOD mg/l (90 %ile) Ammonia mg/l (90 %ile) P mean

High Status Good status Moderate status Poor Status High Status Good status Moderate status Poor Status HG GM MP PB

Cranleigh STW 4 5 6.5 9 0.3 0.6 1.1 2.5 PWER0006 0.03 0.059 0.154 0.956

Elstead STW 4 5 6.5 9 0.3 0.6 1.1 2.5 PWER0046 0.035 0.066 0.169 0.993

Farnham STW 3 4 6 7.5 0.3 0.6 1.1 2.5 PWER0126 0.04 0.074 0.183 1.027

Godalming STW 4 5 6.5 9 0.3 0.6 1.1 2.5 PWER0151 0.037 0.07 0.176 1.009

Shamley Green STW 4 5 6.5 9 0.3 0.6 1.1 2.5 PWER0006 0.03 0.059 0.154 0.956

Haslemere STW 3 4 6 7.5 0.3 0.6 1.1 2.5 PWER0026 0.018 0.038 0.109 0.829

Chiddingfold wwtw 3 4 6 7.5 0.3 0.6 1.1 2.5 F0003142 0.027 0.053 0.143 0.926

Aldershot 4 5 6.5 9 0.3 0.6 1.1 2.5 PLDR0002 0.039 0.073 0.182 1.024

1. ALLOCATION OF GROWTH TO WWTW CATCHMENTS

STWMonitoring point

reference2015-2021 2021-2026 2026-2032

Aldershot STW PLDE0003

Cranleigh STW PWEE0059 1688 1143 1546

Elstead STW PWEE0071 87 59 21

Farnham STW PWEE0078 1704 257 273

Godalming STW PWEE0410 806 532 305

Shamley Green STW PWEE0187 74 14 23

Haslemere STW PWEE0100 478 89 170

Chiddingfold wwtw F0003143 9 95 10

No. Dwellings

2. CONVERSION TO MODEL SCENARIO DATA

ASSUMPTIONS (to be reviewed for each project): Source: Flows and Loads – 4 Sizing Criteria, Treatment Capacity for Sewage Treatment Systems, BritishWater

Single House Occupancy: 5 people

Flow

(l/hd/day)

Ammonia

(g/hd/day) BOD (g/hd/day)

Industrial people per m2 74 people Source: Employment Dnesity Guide, Nov 2015 Residential 120 8 60

Retail 20 people Source: Employment Dnesity Guide, Nov 2015 Industrial (office/factory)100 5 38

SCENARIO 1

GROWTH TOTALS: DWELLINGS EMPLOYMENT

Conversion to Model Format

WwTW 2015-2020 2021-2026 2026-2032 2015-2020 2020-2026 2025-2032 2015-2020 2020-2025 2025-2032 2015-2020 2020-2025 2025-2032 WwTW 2015-2020 2020-2025 2025-2031 2015-2020 2020-2025 2025-2031

Aldershot STW 0.00 0.00 0.00 0 0 0 0 0 0 0 0 0

Cranleigh STW 1.01 1.70 2.63 1688 1143.35 1545.82 8440.7 5716.75 7729.1 1012884 686010 927492

Elstead STW 0.05 0.09 0.10 86.54 58.85 21.42 432.7 294.25 107.1 51924 35310 12852

Farnham STW 1.02 1.18 1.34 1703.6 256.5 273 8518 1282.5 1365 1022160 153900 163800 NOT USED FOR THIS PROJECT

Godalming STW 0.48 0.80 0.99 805.78 531.95 304.74 4028.9 2659.75 1523.7 483468 319170 182844

Shamley Green STW 0.04 0.05 0.07 73.54 13.85 23.22 367.7 69.25 116.1 44124 8310 13932

Haslemere STW 0.29 0.34 0.44 478.16 89.4 169.68 2390.8 447 848.4 286896 53640 101808

Chiddingfold wwtw 0.01 0.06 0.07 9.38 95.45 10.14 46.9 477.25 50.7 5628 57270 6084

m3/d No. Dwelling totals

Employment totalsPopulation equivelant Calc. WwTW Flow (l/day)

Conversion to Model Format

3. SUMMARY MODEL INPUT DATA

GROWTH DATA

WwTW MODEL RUN

Mean SD Mean SD Mean SD Mean SD

Baseline (up to 2015) 10.55 4.61 2.13 0.62 0.14 0.04 0.26 0.12

Consent limit No Consent 9 2.62 2 0.64 2 0.94

2020 10.55 4.61 Use Baseline Use Baseline Use Baseline



Baseline (up to 2015) 4.55 1.92 4.42 2.03 0.95 0.81 0.59 0.34

Consent limit 4.54 1.92 8 3.67 3 2.56 2 1.14




Baseline (up to 2015) 1.66 0.72 8.66 2.97 1.38 1.05 USE Simcat

Consent limit 1.59 0.69 20 6.87 10 7.58 Use Baseline




Baseline (up to 2015) 7.61 4.39 2.35 1.13 0.40 1.76 1.47 0.98

Consent limit 13.3 7.67 10 4.79 3 13.16 2 1.33




Baseline (up to 2015) 8.13 1.94 6.84 2.17 1.35 1.02 0.99 0.70

Consent limit 8.75 2.09 10 3.18 4 3.03 2 1.40




Baseline (up to 2015) 3.10 0.93 7.05 2.46 1.33 0.81 USE Simcat

Consent limit 2.85 0.85 30 10.49 5 3.02 Use Baseline




Baseline (up to 2015) 4.76 1.09 2.47 1.18 0.26 0.37 1.26 0.46

Consent limit No Consent 15 7.18 3 4.31 2 0.73




Baseline (up to 2015) 0.84 0.41 5.77 1.85 1.62 1.02 0.85 0.21

Consent limit 0.64 0.31 20 6.40 8 5.02 1 0.25

2020 0.85 0.41 Use EA guidance Use EA guidance Use EA guidance



EA Guidance for Chiddingford WwTW

Water Body GB107041017980 Salmonid Typology

P standards

WB_NAME Region SMPT_Code HG GM MP PB

Loxwood Stm-

Hambledon Trb SO F0003142 0.027 0.053 0.143 0.926

Typology CategoryDescript

ionHIGH GOOD

MODER

ATEPOOR

1 = UpLA DO2type (Basic types: 1, 2, 4, 6)3 4 6 7.5

2 = LowHA DO2type (Basic types: 3, 5, 7)0.3 0.6 1.1 2.5

1 = UpLA DO2type (Basic types: 1, 2, 4, 6)80 75 64 50 Salmonid Typology water body- therefore more stringent BOD and DO standards given

Upstream River Flow

Mean flow 19267.0

95% exceedence flow 950.00

BOD mg/l (90 %ile)

Ammonia mg/l (90 %ile)

Dissolved Oxygen % satn (10 %ile)

Godalming STW

Shamley Green STW

Haslemere STW

Chnigford WwTW

Elstead STW

Farnham STW

PHOSPHATE (mg/l)

Scenario 1

Cranleigh STW

Aldershot STW

FLOW (Ml/d) BOD (mg/l) AMMONIA (mg/l)

4. MODEL OPUTPUT DATA

No distance provided in output file so assumed to be 0.1km upstream of WwTW No distance provided in output file so assumed to be 0.1km downstream of WwTW

WwTW MODEL RUN Source of Result BOD 90%ile (mg/l) AMMONIA 90%ile (mg/l) PHOSPHATE MEAN (mg/l) BOD 90%ile (mg/l) AMMONIA 90%ile (mg/l) PHOSPHATE MEAN (mg/l) BOD 90%ile (mg/l) AMMONIA 90%ile (mg/l) PHOSPHATE MEAN (mg/l) BOD 90%ile (mg/l) AMMONIA 90%ile (mg/l) PHOSPHATE MEAN (mg/l)

Baseline (up to 2015) 0 3.00 0.03 0.09 0.5 3.090 0.029 0.088 0.7 3.320 0.280 0.140 4.2 3.610 0.030 0.120

Consent limit 0 0.5 0.7 4.2

2021 0 3 0.03 0.09 0.5 3.09 0.029 0.088 0.7 3.41 0.32 0.16 4.2 3.66 0.036 0.13

2026 0 3 0.03 0.09 0.5 3.09 0.029 0.088 0.7 3.42 0.35 0.16 4.2 3.67 0.041 0.14

2032 0 3 0.03 0.09 0.5 3.09 0.029 0.088 0.7 3.47 0.38 0.17 4.2 3.69 0.046 0.14

Baseline (up to 2015) 0 1.96 0.067 0.46 1.6 1.98 0.062 0.45 1.8 2.02 0.081 0.48 5 2 0.072 0.46

Consent limit 0 1.6 1.8 5

2021 0 1.96 0.067 0.46 1.6 1.98 0.062 0.45 1.8 2.02 0.084 0.48 5 2 0.074 0.47

2026 0 1.96 0.067 0.46 1.6 1.98 0.062 0.45 1.8 2.02 0.085 0.48 5 2 0.074 0.47

2032 0 1.96 0.067 0.46 1.6 1.98 0.062 0.45 1.8 2.02 0.086 0.48 5 2 0.075 0.47

Baseline (up to 2015) 0 3.36 0.0145 0.008 2.9 2.96 0.0123 0.0079 3 3.28 0.53 0.76 3.1 3.28 0.52 0.75

Consent limit 0 2.9 3 3.1

2021 0 3.36 0.0145 0.008 2.9 2.96 0.0123 0.0079 3 3.28 0.55 0.82 3.1 3.28 0.54 0.81

2026 0 3.36 0.0145 0.008 2.9 2.96 0.0123 0.0079 3 3.28 0.55 0.83 3.1 3.28 0.54 0.82

2032 0 3.36 0.0145 0.008 2.9 2.96 0.0123 0.0079 3 3.28 0.56 0.84 3.1 3.28 0.55 0.83

Baseline (up to 2015) 0 2.13 0.067 0.15 0.2 2.15 0.073 0.15 0.4 2.29 0.143 0.17 1.3 2.31 0.16 0.16


2021 0 2.13 0.068 0.15 0.2 2.15 0.074 0.15 0.4 2.29 0.148 0.17 1.3 2.32 0.165 0.16

2026 0 2.13 0.068 0.15 0.2 2.15 0.075 0.15 0.4 2.29 0.151 0.17 1.3 2.33 0.168 0.16

2032 0 2.13 0.069 0.15 0.2 2.15 0.075 0.15 0.4 2.3 0.153 0.17 1.3 2.33 0.169 0.16

Baseline (up to 2015) 0 3.61 0.03 0.12 3.3 3.81 0.013 0.11 3.5 3.95 0.169 0.28 7.4 3.97 0.014 0.22


2021 0 3.66 0.04 0.13 3.3 3.82 0.013 0.11 3.5 3.97 0.166 0.28 7.4 3.99 0.014 0.22

2026 0 3.67 0.046 0.14 3.3 3.83 0.013 0.12 3.5 3.98 0.163 0.28 7.4 4 0.014 0.23

2032 0 3.69 0.055 0.14 3.3 3.84 0.014 0.12 3.5 3.99 0.16 0.29 7.4 4 0.014 0.23

Baseline (up to 2015) 0 2.41 0.0157 0.0055 5 1.65 0.083 0.0011 5.2 2.24 0.27 0.42 5.8 2.08 0.25 0.28

Consent limit 0 5 5.2 5.8

2021 0 2.41 0.0157 0.0055 5 1.65 0.083 0.0011 5.2 2.28 0.28 0.42 5.8 2.12 0.26 0.29

2026 0 2.41 0.0157 0.0055 5 1.65 0.083 0.0011 5.2 2.29 0.28 0.42 5.8 2.13 0.26 0.29

2032 0 2.41 0.0157 0.0055 5 1.65 0.083 0.0011 5.2 2.3 0.28 0.42 5.8 2.14 0.26 0.3

Baseline (up to 2015) 0 xx xx xx

Consent limit 0 xx xx xx

2021 0 NO SMICAT MODELLING UNDERTAKEN xx xx xx

2026 0 xx xx xx

2032 0 xx xx xx

Shamley Green STW

Haslemere STW

Chiddingfold wwtw

Farnham STW

Godalming STW

CONCENTRATION: At downstream sample point (or end of reach where no

downnstream sample point)

CONCENTRATION: Upstream sample point (or head of reach where no

upstream sample point) CONCENTRATION: Downstream of WwTW

Cranleigh STW

Elstead STW

CONCENTRATION: Upstream of WwTW

DISTANCE d/s from

upstream sample

point (KM)

DISTANCE d/s from

upstream sample

point (KM)

DISTANCE d/s from

upstream sample point (KM)

DISTANCE d/s from

upstream sample point (KM)

PHOSPHATE

0.03 0.059 0.154 0.956 2

Name Distance (km) Baseline 2021 predicted impact2026 predicted impact2032 predicted impact10% Deterioration ThresholdHigh Status Good Status Moderate StatusPoor Status Bad Status

Upstream Sample Point 0.0 0.09 0.09 0.09 0.09 0.09 0.03 0.029 0.095 0.802 1.044

Upstream of WwTW 0.5 0.088 0.088 0.088 0.088 0.088 0.03 0.029 0.095 0.802 1.044

Downstream of WwTW 0.7 0.14 0.16 0.16 0.17 0.154 0.03 0.029 0.095 0.802 1.044

1.9 0.13 0.15 0.15 0.16 0.15 0.03 0.029 0.095 0.802 1.044

3.0 0.13 0.14 0.15 0.15 0.14 0.03 0.029 0.095 0.802 1.044

At downstream sample point 4.2 0.12 0.13 0.14 0.14 0.132 0.03 0.029 0.095 0.802 1.044

1.17 -0.01 -0.01 -0.01 -0.01 -0.01

% deterioration from Baseline: 8.33 16.67 16.67

0.035 0.066 0.169 0.993 2


Upstream Sample Point 0 0.46 0.46 0.46 0.46 0.46 0.035 0.031 0.103 0.824 1.007

Upstream of WwTW 1.6 0.45 0.45 0.45 0.45 0.45 0.035 0.031 0.103 0.824 1.007


2.9 0.47 0.48 0.48 0.48 0.52 0.035 0.031 0.103 0.824 1.007

4.9 0.47 0.47 0.47 0.47 0.51 0.035 0.031 0.103 0.824 1.007


1.07 -0.01 0.00 0.00 0.00 -0.01


0.04 0.074 0.183 1.027 2



2.7 0.008 0.008 0.008 0.008 0.008 0.04 0.034 0.109 0.844 0.973

Upstream of WwTW 2.9 0.0079 0.0079 0.0079 0.0079 0.0079 0.04 0.034 0.109 0.844 0.973



1.450 -0.00005 -0.00005 -0.00005 -0.00005 -0.00005


0.037 0.07 0.176 1.009 2



Upstream of WwTW 0.2 0.150 0.150 0.150 0.150 0.15 0.037 0.033 0.106 0.833 0.991


0.9 0.165 0.165 0.165 0.165 0.1815 0.037 0.033 0.106 0.833 0.991


0.45 -0.005 -0.005 -0.005 -0.005 -0.0055

% deterioration from Baseline: 0.00 0.00 0.00 -0.06

0.03 0.059 0.154 0.956 2



1.7 0.115 0.12 0.13 0.13 0.115 0.03 0.029 0.095 0.802 1.044

Upstream of WwTW 3.3 0.11 0.11 0.12 0.12 0.121 0.03 0.029 0.095 0.802 1.044


5.5 0.25 0.25 0.255 0.26 0.275 0.03 0.029 0.095 0.802 1.044


1.95 -0.03 -0.03 -0.025 -0.03

1.65 -0.005 -0.01 -0.01 -0.01


0.018 0.038 0.109 0.829 2



2.5 0.0033 0.0033 0.0033 0.0033 0.0033 0.018 0.02 0.071 0.72 1.171

Upstream of WwTW 5.0 0.0011 0.0011 0.0011 0.0011 0.0011 0.018 0.02 0.071 0.72 1.171



2.5 -0.0022 -0.0022 -0.0022 -0.0022


0 0 0 0 2

Name Distance (km) Baseline 2021 growth prediction2026 growth prediction2032 growth prediction10% Deterioration ThresholdHigh Status Good Status Moderate StatusPoor Status Bad Status

Upstream Sample Point 0 0 0 0 2

Upstream of WwTW 0 0 0 0 2

Downstream of WwTW NOT RUN THROUGH SIMCAT SO NO GRAPHS BEING PRODUCED 0 0 0 0 2

At downstream sample point 0 0 0 0 2

Chiddingfold wwtw

Cranleigh STW

Elstead STW

Farnham STW

Godalming STW

Shamley Green STW

Haslemere STW

BOD

4 5 6.5 9 11


Upstream Sample Point 0.0 3.00 3 3 3 3.00 4 1 1.5 2.5 2

Upstream of WwTW 0.5 3.09 3.09 3.09 3.09 3.09 4 1 1.5 2.5 2

Downstream of WwTW 0.7 3.32 3.41 3.42 3.47 3.652 4 1 1.5 2.5 2

1.9 3.42 3.49 3.50 3.54 3.76 4 1 1.5 2.5 2

3.0 3.51 3.58 3.59 3.62 3.86 4 1 1.5 2.5 2

At downstream sample point 4.2 3.61 3.66 3.67 3.69 3.971 4 1 1.5 2.5 2

1.17 0.10 0.08 0.08 0.07 0.11


4 5 6.5 9 11


Upstream Sample Point 0 1.96 1.96 1.96 1.96 1.96 4 1 1.5 2.5 2

Upstream of WwTW 1.6 1.98 1.98 1.98 1.98 1.98 4 1 1.5 2.5 2


2.9 2.01 2.01 2.01 2.01 2.21 4 1 1.5 2.5 2

4.9 2.01 2.01 2.01 2.01 2.21 4 1 1.5 2.5 2

At downstream sample point 5.0 2 2 2 2 2.2 4 1 1.5 2.5 2

1.07 -0.01 -0.01 -0.01 -0.01 -0.01


3 4 6 7.5 9.5


Upstream Sample Point 0 3.36 3.36 3.36 3.36 3.36 3 1 2 1.5 2

2.7 3.16 3.16 3.16 3.16 3.16 3 1 2 1.5 2

Upstream of WwTW 2.9 2.96 2.96 2.96 2.96 2.96 3 1 2 1.5 2

Downstream of WwTW 3.0 3.28 3.28 3.28 3.28 3.608 3 1 2 1.5 2

At downstream sample point 3.1 3.28 3.28 3.28 3.28 3.608 3 1 2 1.5 2

1.450 -0.20 -0.20 -0.20 -0.20 -0.20


4 5 6.5 9 11


Upstream Sample Point 0 2.13 2.13 2.13 2.13 2.13 4 1 1.5 2.5 2

Upstream of WwTW 0.2 2.15 2.15 2.15 2.15 2.15 4 1 1.5 2.5 2


0.9 2.30 2.31 2.31 2.32 2.53 4 1 1.5 2.5 2

At downstream sample point 1.3 2.31 2.32 2.33 2.33 2.541 4 1 1.5 2.5 2

0.45 0.01 0.01 0.02 0.02 0.01


4 5 6.5 9 11


Upstream Sample Point 0.0 3.61 3.66 3.67 3.69 3.61 4 1 1.5 2.5 2

1.7 3.71 3.74 3.75 3.77 3.71 4 1 1.5 2.5 2

Upstream of WwTW 3.3 3.81 3.82 3.83 3.84 3.81 4 1 1.5 2.5 2


5.5 3.96 3.98 3.99 4.00 4.36 4 1 1.5 2.5 2

At downstream sample point 7.4 3.97 3.99 4 4 4.367 4 1 1.5 2.5 2

1.95 0.01 0.01 0.01 0.00 0.01

1.65 0.10 0.08 0.08 0.08 0.10

% deterioration from Baseline: 0.50 0.76 0.76 3 4 6 7.5 9.5

Name Baseline 2021 predicted impact2026 predicted impact2032 predicted impact10% Deterioration ThresholdHigh Status Good Status Moderate StatusPoor Status Bad Status

Upstream Sample Point Distance (km) 2.41 2.41 2.41 2.41 2.41 3 1 2 1.5 2

0.0 2.03 2.03 2.03 2.03 2.03 3 1 2 1.5 2

Upstream of WwTW 2.5 1.65 1.65 1.65 1.65 1.65 3 1 2 1.5 2

Downstream of WwTW 5.0 2.24 2.28 2.29 2.3 2.464 3 1 2 1.5 2

At downstream sample point 5.2 2.08 2.12 2.13 2.14 2.288 3 1 2 1.5 2

5.8 -0.38 -0.38 -0.38 -0.38 -0.38

% deterioration from Baseline: 2.5 1.92 2.40 2.88

3 4 6 7.5 9.5


Upstream Sample Point 3 1 2 1.5 2

Upstream of WwTW 3 1 2 1.5 2

Downstream of WwTW NOT RUN THROUGH SIMCAT SO NO GRAPHS BEING PRODUCED 3 1 2 1.5 2

At downstream sample point 3 1 2 1.5 2

Chiddingfold wwtw

Cranleigh STW

Elstead STW

Farnham STW

Godalming STW

Shamley Green STW

Haslemere STW

AMMONIA

0.3 0.6 1.1 2.5 4.5


Upstream Sample Point 0.0 0.03 0.03 0.03 0.03 0.03 0.3 0.3 0.5 1.4 2

Upstream of WwTW 0.5 0.029 0.029 0.029 0.029 0.029 0.3 0.3 0.5 1.4 2

Downstream of WwTW 0.7 0.28 0.32 0.35 0.38 0.308 0.3 0.3 0.5 1.4 2

1.9 0.20 0.23 0.25 0.27 0.22 0.3 0.3 0.5 1.4 2

3.0 0.11 0.13 0.14 0.16 0.12 0.3 0.3 0.5 1.4 2

At downstream sample point 4.2 0.03 0.036 0.041 0.046 0.033 0.3 0.3 0.5 1.4 2

1.17 -0.08 -0.09 -0.10 -0.11 -0.09


0.3 0.6 1.1 2.5 4.5


Upstream Sample Point 0 0.07 0.067 0.067 0.067 0.07 0.3 0.3 0.5 1.4 2

Upstream of WwTW 1.6 0.062 0.062 0.062 0.062 0.062 0.3 0.3 0.5 1.4 2


2.9 0.08 0.08 0.08 0.08 0.09 0.3 0.3 0.5 1.4 2

4.9 0.08 0.08 0.08 0.08 0.08 0.3 0.3 0.5 1.4 2


1.07 0.00 0.00 0.00 0.00 0.00


0.3 0.6 1.1 2.5 4.5



2.7 0.0134 0.0134 0.0134 0.0134 0.0134 0.3 0.3 0.5 1.4 2

Upstream of WwTW 2.9 0.0123 0.0123 0.0123 0.0123 0.0123 0.3 0.3 0.5 1.4 2



1.450 0.00 0.00 0.00 0.00 0.00


0.3 0.6 1.1 2.5 4.5



Upstream of WwTW 0.2 0.073 0.074 0.075 0.075 0.07 0.3 0.3 0.5 1.4 2


0.9 0.1515 0.1565 0.1595 0.1610 0.1667 0.3 0.3 0.5 1.4 2


0.45 0.01 0.01 0.01 0.01 0.01


0.3 0.6 1.1 2.5 4.5


Upstream Sample Point 0.0 0.030 0.040 0.046 0.055 0.0300 0.3 0.3 0.5 1.4 2

1.7 0.022 0.027 0.030 0.035 0.0215 0.3 0.3 0.5 1.4 2

Upstream of WwTW 3.3 0.013 0.013 0.013 0.014 0.0130 0.3 0.3 0.5 1.4 2


5.5 0.092 0.090 0.089 0.087 0.1007 0.3 0.3 0.5 1.4 2


1.95 -0.009 -0.014 -0.017 -0.021 -0.0085

1.65 -0.078 -0.076 -0.075 -0.073 -0.0853

% deterioration from Baseline: 0.00 0.00 0.00 0.3 0.6 1.1 2.5 4.5

Name Baseline 2021 predicted impact2026 predicted impact2032 predicted impact10% Deterioration ThresholdHigh Status Good Status Moderate StatusPoor Status Bad Status

Upstream Sample Point Distance (km) 0.016 0.016 0.016 0.016 0.0157 0.3 0.3 0.5 1.4 2

0.0 0.05 0.05 0.05 0.05 0.05 0.3 0.3 0.5 1.4 2

Upstream of WwTW 2.5 0.083 0.083 0.083 0.083 0.0830 0.3 0.3 0.5 1.4 2



5.8 0.03 0.03 0.03 0.03 0.03

% deterioration from Baseline: 2.5 4.00 4.00 4.00

0.3 0.6 1.1 2.5 4.5


Upstream Sample Point 0.3 0.3 0.5 1.4 2

Upstream of WwTW 0.3 0.3 0.5 1.4 2

Downstream of WwTW NOT RUN THROUGH SIMCAT SO NO GRAPHS BEING PRODUCED 0.3 0.3 0.5 1.4 2

At downstream sample point 0.3 0.3 0.5 1.4 2

Chiddingfold wwtw

Cranleigh STW

Elstead STW

Farnham STW

Godalming STW

Shamley Green STW

Haslemere STW

TO INSERT INTO A REPORT SELECT THE 3 INDIVIDUAL GRAPHS IN THE COLUMN (BY PRESSING CTL AND CLICKING ON THEM) THEN COPY AND PASTE SPECIAL (image) INTO THE REPORT.

Cranleigh WWTW Elstead WWTW Farnham WWTW Godalming WWTW Shamley Green WWTW Haslemere WWTW

PH

OS

PH

AT

EB

OD

AM

MO

NIA

0

0.05

0.1

0.15

0.2

0.25

0.3

0 0.2 0.4 0.9 1.3

Co

nce

ntr

ati

on

(m

g/l

)

Distance (km) from Upstream Sample Point

High Status Good Status Moderate Status Poor Status

Bad Status Baseline 2021 predicted impact 2026 predicted impact

2032 predicted impact 10% Deterioration Threshold

Point of discharge

C

0.3

0.35

0.4

0.45

0.5

0.55

0.6

0 1.6 1.8 2.9 4.9 5.0

Co

nce

ntr

ati

on

(m

g/l

)





Point of discharge

PWER0110

0

0.05

0.1

0.15

0.2

0.25

0.3

0.0 0.5 0.7 1.9 3.0 4.2

Co

nce

ntr

ati

on

(m

g/l

)





Point of discharge

PWER0004

A

2

2.5

3

3.5

4

4.5

0.0 0.5 0.7 1.9 3.0 4.2

Co

nce

ntr

ati

on

(m

g/l

)





Point of discharge

PWER0004

B

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.0 0.5 0.7 1.9 3.0 4.2

Co

nce

ntr

ati

on

(m

g/l

)





Point of discharge

PWER0004

C

PWER0006

End of

reach

1.8

1.9

2

2.1

2.2

2.3

2.4

2.5

2.6

0 1.6 1.8 2.9 4.9 5.0

Co

nce

ntr

ati

on

(m

g/l

)





Point of discharge

PWER0110

B

End of reach

0.05

0.06

0.07

0.08

0.09

0.1

0.11

0 1.6 1.8 2.9 4.9 5.0

Co

nce

ntr

ati

on

(m

g/l

)





Point of discharge End of reach

C

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

0 2.7 2.9 3.0 3.1

Co

nce

ntr

ati

on

(m

g/l

)





Point of discharge

Head of reach

PWER0126

A

2.7

2.9

3.1

3.3

3.5

3.7

3.9

4.1

0 2.7 2.9 3.0 3.1

Co

nce

ntr

ati

on

(m

g/l

)





Point of discharge

B

Head of reach

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0 2.7 2.9 3.0 3.1

Co

nce

ntr

ati

on

(m

g/l

)





Point of discharge

C

Head of reach

PWER0126

PWER0126

0.13

0.14

0.15

0.16

0.17

0.18

0.19

0.2

0 0.2 0.4 0.9 1.3

Co

nce

ntr

ati

on

(m

g/l

)





Point of dischargePWER0029

A

1.9

2

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

0 0.2 0.4 0.9 1.3

Co

nce

ntr

ati

on

(m

g/l

)





Point of discharge

BPWER0151

PWER0151

PWER0151

0

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.0 1.7 3.3 3.5 5.5 7.4

Co

nce

ntr

ati

on

(m

g/l

)





Point of discharge

PWER0006

A

End of reach

3.5

3.6

3.7

3.8

3.9

4

4.1

4.2

4.3

4.4

4.5

0.0 1.7 3.3 3.5 5.5 7.4

Co

nce

ntr

ati

on

(m

g/l

)





Point of discharge

B

0

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.0 1.7 3.3 3.5 5.5 7.4

Co

nce

ntr

ati

on

(m

g/l

)





Point of discharge

C

End of reach

End of reach

PWER0006

PWER0006

0

0.1

0.2

0.3

0.4

0.5

0.6

0.0 2.5 5.0 5.2 5.8

Co

nce

ntr

ati

on

(m

g/l

)





Point of discharge

A

Head of reach

PWER0026

1.5

1.7

1.9

2.1

2.3

2.5

2.7

2.9

3.1

3.3

3.5

Distance (km) 0.0 2.5 5.0 5.2

Co

nce

ntr

ati

on

(m

g/l

)





Point of discharge

B

PWER0026Head of reach

0

0.05

0.1

0.15

0.2

0.25

0.3

0.35

Distance (km) 0.0 2.5 5.0 5.2

Co

nce

ntr

ati

on

(m

g/l

)





Point of discharge

C

PWER0026Head of reach

PWER0006

PWER0006

PWER0110

PWER0029

PWER0029

A

Step 6. Where there is an exceedance of the standards seen in the graphs RQP modelling is required to understand the consent limit required at the WwTW to meet the standards

WwTW

Baseline 2021 2026 2032 Amm p BOD NOTES

Mean flow 4.55 5.56 6.25 7.17 Mean Flow (Ml/d) 55.08 55.08 just upstream of sample point

SD of flow 1.92 2.35 2.64 3.02 95% exceedance flow (Ml/d) 9.25 9.25 just upstream of sample point

Mean quality 0.95 0.95 0.95 0.95 Mean quality 0.03 0.09

SD Quality 0.81 0.81 0.81 0.81 SD 0.00 0.03

Mean quality 0.59 0.59 0.59 0.59

SD Quality 0.34 0.34 0.34 0.34

Mean flow 1.66 1.72 1.75 1.76 Mean Flow 275 275 just upstream of sample point

SD of flow 0.72 0.74 0.76 0.76 95% exceedance flow 113.9 113.9 just upstream of sample point


SD Quality 1.05 1.05 1.05 1.05 SD 0.03 0.04

Mean quality 0.00 0.00 0.00

SD Quality 0.00 0.00 0.00

Mean flow 7.61 8.63 8.79 8.95 Mean Flow 7.16 7.16 Flow just upstream of WwTW

SD of flow 4.39 4.98 5.07 5.16 95% exceedance flow 1.56 1.56 Flow just upstream of WwTW

Mean quality 0.40 0.40 0.40 0.40 Mean quality 0.0055 0.0079 WQ just upstream of discahrge (mg/l)

SD Quality 1.76 1.76 1.76 1.76 SD 0.0054 0.0024 WQ just upstream of discahrge

Mean quality 1.47 1.47 1.47 1.47

SD Quality 0.98 0.98 0.98 0.98

Mean flow 8.13 8.61 8.93 9.11 Mean Flow 352.5 352.5 just upstream of sample point

SD of flow 1.94 2.05 2.13 2.17 95% exceedance flow 140.6 140.6 just upstream of sample point


SD Quality 1.02 1.02 1.02 1.02 SD 0.02 0.03

Mean quality 0.99 0.99 0.99 0.99

SD Quality 0.70 0.70 0.70 0.70

Mean flow 3.10 3.14 3.15 3.16 Mean Flow 87.6 87.6 87.6 just upstream of sample point from 2032 SIMCAT run to allow for upstream WwTW flow and quality

SD of flow 0.93 0.94 0.94 0.95 95% exceedance flow 19 19 19 just upstream of sample point from 2032 SIMCAT run to allow for upstream WwTW flow and quality

Mean quality 1.33 1.33 1.33 1.33 Mean quality 0.02 0.12 2.48 just upstream of sample point from 2032 SIMCAT run to allow for upstream WwTW flow and quality

SD Quality 0.81 0.81 0.81 0.81 SD 0.01 0.09 1.00 just upstream of sample point from 2032 SIMCAT run to allow for upstream WwTW flow and quality

Mean quality 7.05 7.05 7.05 7.05

SD Quality 2.46 2.46 2.46 2.46

Mean quality 0.00 0.00 0.00

SD Quality 0.00 0.00 0.00

Mean flow 4.76 5.04 5.10 5.20 Mean Flow 15.5 15.5 Flow just upstream of WwTW

SD of flow 1.09 1.16 1.17 1.19 95% exceedance flow 10.8 10.8 Flow just upstream of WwTW

Mean quality 0.26 0.26 0.26 0.26 Mean quality 0.12 0.28 WQ just upstream of discahrge (mg/l)

SD Quality 0.37 0.37 0.37 0.37 SD 0.09 0.13 WQ just upstream of discahrge

Mean quality 1.26 1.26 1.26 1.26

SD Quality 0.46 0.46 0.46 0.46

Mean flow 0.84 0.85 0.90 0.91 Mean Flow 1.9267 1.9267 1.9267 FROM EA DATA RECEIVED

SD of flow 0.41 0.41 0.44 0.44 95% exceedance flow 0.095 0.095 0.095 FROM EA DATA RECEIVED

Mean quality 1.62 1.62 1.62 1.62 Mean quality 0.1 0.04 3.5 VALUES ARE THE MIDCLASS OF THE CURRENT WFD STATUS OF THE WATERBODY AS NO UPSTREAM WQ INFO AVAILABLE

SD Quality 1.02 1.02 1.02 1.02 SD 0.03 0.04 1.2 VALUES ARE THE MIDCLASS OF THE CURRENT WFD STATUS OF THE WATERBODY AS NO UPSTREAM WQ INFO AVAILABLE

Mean quality 5.77 5.77 5.77 5.77

SD Quality 1.85 1.85 1.85 1.85

Mean quality 0.85 0.85 0.85 0.85

SD Quality 0.21 0.21 0.21 0.21P

Shamley Green STW

Haslemere STW

Chiddingfold wwtw

P

AmmGodalming STW

P

Amm

P

Amm

P

Amm

BOD

BOD

Upstream ValuesDischarge values

Cranleigh STW

Elstead STW

Farnham STW

Amm

Amm

P

Amm

P

Paste screenshots of the RQP Outputs Here for future reference

MODELLING PERMITS TO MEET THE 10% DETERIORATION in QUALITY/ CURRENT CLASS AT THE DOWNSTREAM POINT. ONLY DONE WHERE DETERIORATION IS GREATER THAN 10% OR CHANGES WFD CLASS

WwTW

2032 Scenario. d/s target was 10% det downstream of WwTW 2032 Scenario. d/s target was 10% det downstream of WwTW

2032 Scenario. d/s target was 10% det at downstream point

PHOSPHATE BOD AMMONIA

Cranleigh STW

Farnham STW

Chiddingford does not have a simcat model so all modellling done using RQP, not just the deterioration assessment

BASELINE 2021 SCENARIO 2026 2032

Required consent to Get to Good Status downstream of the WwTW

0.48

0.96

5.13

NO EXCEEDANCES OF

THIS 10%

DETERIORATION IN ANY

GROWTH SCENARIO

10%

deterioration

in baseline

10%

deterioration

in baseline

10%

deterioration

in baseline

NO EXCEEDANCES OF

THIS 10%


GROWTH SCENARIO

NO EXCEEDANCES OF

THIS 10%


GROWTH SCENARIO

Documents

Appendix A Input data and modelling outputs (Excel workbook)€¦ · Input data and modelling outputs (Excel workbook) APPENDIX A - WORKBOOK TO ACCOMPANY: Waverley Borough Council