ST SR V ID DA H A 58 Tw e lve M 4778000 NIAGARA FALLS THOROLD STONE RD k ree D sc S R rda M D A eave ER AV E = ; = ; Thorold South = ; TH OR O LD T O NL IN E R D DAV IS RD Hwy 406 OPG Power Canal DeCew Falls TP & Main Intake D Confederation Heights ) Lake Moodie > HI G HIG H A 406 RD Esc E AV OR MO ND ST S PE AM LH a gar Nia 650000 MO UN TA IN RD ST. CATHARINES nt e arp 648000 E AL ND E GL CO LL IE R R D S LINCOLN 4776000 ST ile C reek L ST PAU E GL EN RIDG E AV FIF TH LOUTH ST 4776000 640000 LOUTH ST 4778000 638000 LU ND S LA NE THOROLD = ; Intake ) > Municipal TP Priary Highway Secondary Highway HIG HA 20 OPG Diversion Other Road Control Gate Municipal oundary 20 E Fonthill N CA D OR OR 638000 E 640000 Iagery courtesy of Niagara Region. Hydrology courtesy of Conservation Authority. Copyright 2011 Stantec Consulting Ltd. ion: UTM Zone 17N NAD 1983 Assessent Report 4768000 GI RE D MERRITT VILL E H 4768000 N PELHAM R AL ON MC LEO D RD AL L AN PO RT RD CHIPPAA CREEK RD ell an 7.1 d Riv Port Robinson 3 er 510 648000 0 510 1020 650000 1530 2040 Local Setting July 14 2011
641000 641500 642500 643500 Niagara Escarpent DeCew Falls TP > ) 1 I Lake Moodie Main Intake 4774500 ;= 4774500 Lower DeCew Rd Middle Diversion Channel Upper ;= Intake Type ;= Intake Rule 55) Left Class Rule 16. 3) b)) Upper Right; > ) Municipal TP Syste Type Rule 1. 1)) Lower Right Culvert ;= IPZ-2 4773500 Cataract Rd Faywell Rd Merrittville Hwy 4773500 lue arrows indicate direction of flow. Iagery courtesy of Niagara Region. Hydrology courtesy of Conservation Authority. Copyright 2011 Stantec Consulting Ltd. ion: UTM Zone 17N NAD 1983 N Assessent Report 7.2 12 July 14 2011 641000 E 641500 642500 100 0 100 200 300 400 500 643500 DeCew Falls TP IPZ Delineations - Main Intake
Middle ad Upper r Kotteier Road OPG Power Canal eaverdas Road OPG Diversion Intake ") Municipal TP Intake Type Rule 55) Left Class Rule 16. 3) b)) Upper Right; Syste Type Rule 1. 1)) Lower Right Culvert Railway Highway 20 Control Gate IPZ-2 Federal Lands Iagery courtesy of Niagara Region. Hydrology courtesy of Conservation Authority. Rails Natural Resources Canada. ion: UTM Zone 17N NAD 1983 N Assessent Report 7.3 11 110 0 110 220 330 440 550 E 210 0 210 420 630 840 DeCew Falls TP /IPZ-2 Delineations - Hwy 406 Control
641000 Niagara Escarpent DeCew Falls TP & Intake ") 1 I Lake Moodie Confederation Heights eaverdas Creek Lower DeCew Road Middle Upper Intake ") Municipal TP Culvert Intake Type Rule 55) Left Class Rule 16. 3) b)) Upper Right; Syste Type Rule 1. 1)) Lower Right Kotteier Road OPG Power Canal Railway eaverdas Road OPG Diversion IPZ-2 Federal Lands Highway 20 Control Gate Notes Iagery courtesy of Niagara Region. Hydrology courtesy of Conservation Authority. Rails Natural Resources Canada. ion: UTM Zone 17N NAD 1983 Assessent Report N 130 0 130 260 390 520 650 641000 E 250 0 250 500 750 1000 7.4 11 DeCew Falls TP /IPZ-2 Delineations -
Merrittville Highway OPG Power Canal s Road OPG Diversion elland Canal Control Gate Highway 20 Intake Tie of Travel Fro Intake N Minutes 0-30 30-60 60-90 90-120 E Tie of Travel fro Technical Meorandu ND-6 McCorquodale 2008. Iagery courtesy of Niagara Region. ater data courtesy of Conservation Authority. ion: UTM Zone 17N NAD 1983 250 0 250 500 750 1000 Source Protection Area Assessent Report 7.5 3 In-ater IPZ-2 for Main Intake and Control at Hwy 406
Merrittville Highway eaverdas Creek OPG Power Canal eaverdas Road OPG Diversion Highway 20 elland Canal Control Gate Intake Tie of Travel fro Intake Minutes N 0-30 30-60 60-90 90-120 E Tie of Travel fro Technical Meorandu ND-6 McCorquodale 2008. Iagery courtesy of Niagara Region. ater data courtesy of Conservation Authority. Copyright 2013 Stantec Constulting Ltd. ion: UTM Zone 17N NAD 1983 250 0 250 500 750 1000 Source Protection Area Assessent Report 7.6 4 In-ater IPZ-2 for Alternate Intake
641000 ca rp Highw Lake Moodie Confederation Heights DeC ew R oad Lower v ea a erd k ree sc " ) ay 40 6 Es ia ga ra N Ca n al Middle el la Upper nd DeCew Falls TP & Intake en t 1 2 l ana rc d oa owe GP OP Kotteier Road " ) Intake Stor Sewer Outfall OPG Diversion Highwa Railway Tile Drainage Area y 406 5 Cobined /IPZ-2s 6 Control Gate 7 delineations not affected by tile drainage areas. Iagery courtesy of Niagara Region. Hydrology and stor sewer network courtesy of Conservation Authority. Rails Natural Resources Canada. ion: UTM Zone 17N NAD 1983 8 10 N 9 Assessent Report 7.7 250 Survey Point Culvert 4 Highway 20 641000 E Municipal ater Treatent Plant Stor Sewer Network sr a rd e av e 3 0 250 500 750 1000 7 DeCew Falls TP IPZ Delineation Source Data
4776000 HIGHA 406 EAVERDAMS ROAD HIGHA 58 DAVIS ROAD 4776000 4762000 4760000 640000 elland River Old ONTARIO ROAD EAST MAIN STREET 4762000 4760000 4758000 4756000 FORKS ROAD CANAL ANK STREET HIGHA 406 Spill Site D ALLANPORT ROAD HIGHA 58 4758000 4756000 Surface ater Intake IPZ-2 IPZ-3 Also Subject To IPZ-3 Significant Threat Policies Federal Lands 4768000 4768000 4754000 HIGHA 140 4754000 Modeled Spill Location MERRITTVILLE HIGHA EST SIDEROAD Coordinate Syste: NAD 1983 UTM Zone 17N 4766000 4764000 4762000 RICE ROAD NIAGARA STREET Old HIGHA 406 EAVERDAMS ROAD elland River 4762000 4764000 4766000 4752000 4750000 4748000 640000 Lake Erie KING STREET Spill Site Regional Road 3 Spill Site A Clarence Street HIGHA 3 1:75000 1000 0 1000 2000 4752000 4750000 4748000 Iagery produced under license with the Conservation Authority. Assessent Report 7.8 1 Decew Falls TP IPZ-3 Delineation - Hwy 406
HIGHA 406 COLLIER ROAD SOUTH PINE STREET SOUTH HIGHA 58 HIGHA 58 EAVERDAMS ROAD Surface ater Intake IPZ-2 HIGHA 406 DAVIS ROAD Also Subject To IPZ-3 Significant Threat Policies Federal Lands Modeled Spill Locations HIGHA 406 Coordinate Syste: NAD 1983 UTM Zone 17N MERRITTVILLE HIGHA Spill Site D HIGHA 20 Iagery produced under license with the Conservation Authority. Assessent Report REGIONAL ROAD 20 ALLANPORT ROAD 250 0 250 500 750 7.9 2 August 2013 Decew Falls TP Event-based Modelling Area -
641000 ca rp Highw Lake Moodie Confederation Heights DeC 8.0 ea da ver k ree sc 6.4 ew R oad 8.0 IPZ-2 Vulnerability Score: 6.4 Main Intake ) Potential Cheical Threats Low: Provincial Table 37 CIPZE6.4L) Moderate: Provincial Table 29 CIPZE6.4M) Significant: Not Applicable nd el la 8 Vulnerability Score: 8.0 Main Intake Hwy 406 ) rc IPZ-2 Vulnerability Score: 5.6 Hwy 406 ) l ana 5.6 owe GP OP 6.4 6.4 Potential Cheical Threats Low: Provincial Table 34 CIPZE8L) Moderate: Provincial Table 26 CIPZE8M) Significant: Provincial Table 22 CIPZE8S) Potential Pathogen Threats Low: Provincial Table 61 PIPZE8L) Moderate: Provincial Table 52 PIPZE8M) Significant: Provincial Table 48 PIPZE8S) Potential Pathogen Threats Low: Provincial Table 64 PIPZE6.4L) Moderate: Provincial Table 55 PIPZE6.4M) Significant: Not Applicable Kotteier Road Ca n al 6.4 " ) ay 40 6 Es ia ga ra N en t Potential Cheical Threats Low: Provincial Table 39 CIPZE5.6L) Moderate and Significant: Not Applicable 5.6 Area of overlap between Hwy 406 and IPZ-2s 5.6 / 6.4 Municipal ater Treatent Plant Notes Iagery courtesy of Niagara Region. Hydrology courtesy of Conservation Authority. ion: UTM Zone 17N NAD 1983 Assessent Report N 5.6 7.10 250 " ) 6.4 Highway 20 Intake Intake Protection Zone Potential Pathogen Threats Low: Provincial Table 67 PIPZE5.6L) Moderate and Significant: Not Applicable 641000 E 0 250 500 750 1000 6 Threat Levels of Potential Prescribed Drinking ater Threats
641500 ") DeCew Falls TP Lake Moodie 4774500 Main Intake Lower DeCew Rd 4774500 Intake ") Municipal TP Road Roadway Corridor Potential Threat Circustances Middle Diversion Channel Upper Iagery courtesy of Niagara Region. Hydrology courtesy of Conservation Authority. Rails Natural Resources Canada. ion: UTM Zone 17N NAD 1983 Road Transport Significant: 0 Moderate: 41 Assessent Report 7.11 0 October 9 2013 40 0 40 80 120 160 200 DeCew Falls TP Transportation Threat Corridors - Main Intake 641500
406 Intake Road Major Highway Roadway Corridor Potential Threat Circustances Road Transport Significant: 0 Moderate: 41 Iagery courtesy of Niagara Region. Hydrology courtesy of Conservation Authority. Rails Natural Resources Canada. ion: UTM Zone 17N NAD 1983 eaverdas Road Assessent Report 7.12 0 October 9 2013 30 0 30 60 90 120 DeCew TP Transportation Threat Corridors - Hwy 406
406 e DeCew Road Upper Intake ") Municipal TP Road Major Highway Roadway Corridor Potential Threat Circustances Road Transport Significant: 0 Moderate: 41 Merrittville Hwy Iagery courtesy of Niagara Region. Hydrology courtesy of Conservation Authority. Rails Natural Resources Canada. ion: UTM Zone 17N NAD 1983 Assessent Report N 50 0 50 100 150 200 7.13 0 DeCew Falls TP Transportation Threat Corridors - October 9 2013