City of Guelph Transfer of Review Procedures 7 March, 2017

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1 Step 1-Determine where the project is located on the City of Guelph Vulnerability Map If the project is found not to be located in a vulnerability area with a vulnerability score of 8 or higher (See Attachment A), simply provide vulnerability mapping information and the site location with appropriate documentation that the project is not located within a vulnerability score of 8 or higher. Step 2- Projects with a vulnerability score of 8 or higher (including sites within 100m of a municipal supply well). If the project is within areas with a vulnerability score of 8 or higher, the proponent will be required to complete: Supplementary Source Protection ECA Application Form (Attachment B) TOR Checklist (Attachment C) Step 3-Prepare the Source Protection Supplementary Report (Attachment D) When preparing the Source Protection Supplementary Report, the proponent must ensure the following are included: 1. Completed Attachments B and C as noted above. 2. Identification of the following: How the sewage works have met the requirements of the Clean Water Act and the Ministry s design and operational requirements; How the works considered the Risk Management Measures Catalogue (e.g. monitoring, reporting plans), as amended, to address the risks. Details outlining how the threat is managed to ensure that the sewage works does not become a significant threat to drinking water or, if the activity is already taking place, the activity ceases to become a significant threat to drinking water. This includes any mitigations measures (e.g. Risk Management Measures Catalogue, other design and operational measures) to manage the risk to the drinking water source(s); A Spill Prevention and Contingency Plan to be provided by the contractor responsible for the proposed construction activities, covering information requirements as per O. Reg. 224/07 to prevent, eliminate or ameliorate any adverse drinking water effects that result or may result from spills of pollutants. This includes steps taken in the event drinking water sources are contaminated for example, notifying members of the public who may be directly affected by a spill. The Spill Prevention and Contingency Plan: a) must be kept up-to-date during the construction phase and to be made readily available upon request by Ministry staff, Source Protection Authority or any other parties identified in Source Protection Plans; b) All reports are required to be kept on-site (where the reports can be kept onsite) and at the operating authority s office. 3. Scaled site plan identifying the following: the proposed sewage works and property boundaries; delineation of the vulnerable drinking water area(s)/ zone(s) and associated vulnerability score(s) (This information can be found in the approved Assessment Report Grand River - Assessment Report - Drinking Water Source Protection; 1

2 the location of the drinking water system(s) (i.e. specifically the municipal drinking water wellhead or intake); immediate discharge point (if applicable). 4. Provide details outlining how the proposed sewage works meets the circumstance(s) of the Table of Drinking Water Threats, 2009, (What are threats? - Drinking Water Source Protection) to be considered a significant drinking water threat (e.g. chemical and pathogen threats) including the reference number of the circumstance(s).complete Table 1 (See below)-circumstances for Sub-threats) for only the sub-threats applicable to the ECA application. Table 1: Drinking Water Sub-Threats Activities for Sewage Works Threat Sewage Sub-threat Combined Sewers Stormwater Management Facility Industrial Effluent Discharge Sanitary Sewers and Related Pipes Septic Systems Holding Tanks Sewage Treatment Plant Discharge via By-pass Sewage Treatment Plant Effluent (including lagoons) Sewage Storage or Treatment Tank Storage Treatment and Discharge from Mine Tailings 5. Provide details outlining how the Ministry s design and operational requirements (See attached Table 3 of the Source Protection Information Bulletin: Environmental Compliance Approvals for Sewage Works) were applied to the proposed sewage works. Step 4-Submit the Source Protection Supplementary Report to City of Guelph s Engineering Department for review The proponent will submit the Source Protection Supplementary Report to the City of Guelph s Risk Management official for review. The proponent must provide the information identified above to outline how the proposed works will be managed to mitigate the contamination of sources of drinking water through the construction, design and operation of the proposed activity. Step 5- City of Guelph Engineering Department reviews submission and provides a response to the proponent The City will either approve the submission, or contact the proponent with a list of deficiencies. If the submission is approvable, a letter of recommendation confirming that the works have been reviewed in accordance with the Clean Water Act and the applicable policies in the local Source Protection Plan will be provided. GENERAL NOTES a) Applicants must ensure that the additional design and operational requirements summarized in the MOECC s Information Bulletin have been met when submitting an ECA application for 2

3 sewage works that are a significant drinking water threat for it to be considered a complete ECA submission. b) Please note that incomplete ECA applications will be returned with notification to the applicant. c) Typical Risk Management Measures that are deployed for sanitary sewer projects: For the installation of sewers, the City of Guelph conducts the following as a normal course of installation: 1. Full time inspection during construction phase 2. 3rd party compaction testing during construction 3. CCTV 30 days after installation of the sewer pipe 4. Pull a mandrel through the pipe post at about the same time as the 1st CCTV 5. CCTV prior to the end of the 2 year warranty, where feasible 6. City maintains Guelph specific specifications for the installation of sewers 7. City wide O&M manual for the long term operation and maintenance of the sewers 8. Watertight resilient connectors for the pipe/mh connection 9. Low pressure air testing for sanitary sewers, where feasible The above items must be considered for inclusion in the Supplementary Source Protection Report. For further information, please contact: Peter G. Rider, P. Geo., Risk Management Official Engineering and Capital Infrastructure Services Source Protection Planning City of Guelph T x 2368 F E peter.rider@guelph.ca 3

4 Attachment A 4

5 Attachment B 5

6 Attachment C 6

7 Attachment D 7

8 Table 3: Risk Management Approach for ECA Applications for Sewage Works identified as a Significant Drinking Water Threat Sewage Sub-Threat Activity General (applicable to all sewage works included within this table) Requirements for ECA Applications In order to prevent potential risks from becoming a significant drinking water threat, the ministry is implementing the following requirements for the establishment of sewage works where the works are a significant drinking water threat. Design must include a Source Protection Supplementary Report that demonstrates that the proposed design recognized the significant drinking water threat and has implemented mitigation measures to protect drinking water sources. The report should identify drinking water sources, how the sewage works has met the requirements of the CWA and the ministry s design and operational requirements and how the works considered the Risk Management Measures Catalogue (e.g. monitoring, reporting requirements), as amended, to address the risks. Designs must be accompanied with a monitoring and reporting plan. Designs must be accompanied with a Spill Prevention and Contingency Plan, covering information requirements as per O.Reg. 224/07 to prevent, eliminate or ameliorate any adverse drinking water effects that result or may result from spills of pollutants. This includes steps taken in the event drinking water sources are contaminated for example, notifying members of the public who may be directly affected by a spill. The Spill Prevention and Contingency Plans must be kept up-to-date. 8

9 Table 3: Risk Management Approach for ECA Applications for Sewage Works identified as a Significant Drinking Water Threat Sewage Sub-Threat Activity Requirements for ECA Applications Regular and annual reports to include maintenance, inspections, and monitoring details. All reports are required to be kept on-site (where the reports can be kept on-site) and at the operating authority s office. All reports are required to be made readily available upon request by ministry staff, Source Protection Authority or any other parties identified in Source Protection Plans. Stormwater management works Design must be based on providing Enhanced Level water quality control as per the ministry s Stormwater Management and Planning Manual, Design must include an additional 20% water quantity control in addition to the requirements of the ministry s Stormwater Management and Planning Manual. Design must be accompanied with erosion and sediment control measures to cover all phases of construction. The erosion and sediment control measures plan must be kept up-to-date with records of inspections and maintenance made available for inspection by the ministry. The monitoring and reporting plan must be kept up-to-date and on-site (where the reports can be kept on-site) and at the operating authority s office. Combined sewers New combined sewers are currently prohibited per the ministry s Design Guidelines for Sewage Works, 2008 and Procedure F-5-5. Treatment Requirements for Municipal and Private Combined and Partially Separated Sewer Systems are outlined in Procedure F-5-5. Combined sewer outflows are to be reported to the Spills Action Centre as per the obligations under Part X of the EPA. Same as General section. Operational procedures established to include closed-circuit television (CCTV) inspections every 5 years with records made available for inspection by the ministry. 9

10 Table 3: Risk Management Approach for ECA Applications for Sewage Works identified as a Significant Drinking Water Threat Sewage Sub-Threat Activity Sanitary sewers and related pipes Requirements for ECA Applications Video inspection of a sewer uses a closed circuit television (CCTV) camera to visually inspect the interior of the pipe as the camera moves through the pipe and shall include the service lateral up to the property line. Currently, the City undertakes CCTV inspections annually. A CCTV inspection crew requires a supervisor and support personnel. CCTV inspections of sanitary sewers are typically undertaken by an external contractor but must be undertaken in accordance with the City s CCTV specifications for sanitary sewers provided in Appendix A4 of the City of Guelph s Operations and Maintenance Manual. Based on existing CCTV records, NASSCO grading of defects are available for each section of inspected pipe. NASSCO ratings are a standardized rating system that assigns a numerical value to various types of defects. The ratings range from 1 to 5, with 5 representing the most severe condition requiring immediate attention. The Engineering and Capital Infrastructure department shall incorporate NASSCO ratings to schedule CCTV inspections using risk-based prioritization, where lines with high likelihood and/or consequence of failure would be inspected first, followed by the low risk assets. CCTV inspection of pipes with a PACP rating of 1 may have a low likelihood of failure, and could potentially be deferred to be inspected at a lower frequency, such as every 5-10 years. Other reasons for undertaking CCTV inspections may include: Sewer rehabilitation work Road improvement work Inflow and infiltration investigations Request by cleaning crew because of a reported issue CCTV inspections of sanitary sewers shall be scheduled and undertaken based on a risk-based prioritization program. Please refer to the Region of Waterloo and Area Municipalities Design Guidelines and Supplemental Specifications for Municipal Services, August 8, 2016 for additional details. 10

11 Sewage treatment plant discharge via bypass Appropriate sizing to reduce bypasses-in adherence to the ministry s Sewage Works Design Guideline (2008) and provisions of Procedure F-5-5 and F-5-1. Response plan for unplanned bypasses. Sewage treatment plant storage/holding tanks Design and Same as General section. Sewage treatment plant effluent (including lagoons) Appropriate sizing to reduce bypasses-in adherence to the ministry s Sewage Works Design Guideline, 2008 and provisions of Procedure F-5-5 and F-5-1. Design must include an inspection/maintenance frequency and strategy to prevent unplanned bypasses. Response plan for pre-mature effluent discharge (i.e. in the event of seasonal lagoons). Same as General section. Industrial effluent discharge Designs must include an industrial sewage discharge flood protection and risk assessment report, considering the 1:200 year storm event, or an additional 0.5 metres freeboard elevation on any lagoon or wastewater containment area. Decommissioning plan for every component of the sewage system. 11

12 Table 3: Risk Management Approach for ECA Applications for Sewage Works identified as a Significant Drinking Water Threat Sewage Sub-Threat Activity Requirements for ECA Applications Design must include a contingency plan for responding to effluent quality not complying with effluent criteria. Same as General section. Industrial effluent discharge mine tailings Designs must include an industrial sewage discharge flood protection and risk assessment report, considering the 1:200 year storm event, or an additional 0.5 metres freeboard elevation on any lagoon or wastewater containment area. Design must include a contingency plan for responding to effluent quality not complying with effluent criteria. Response plan for pre-mature effluent discharge (i.e. in the event of seasonal discharge from tailing ponds). Same as General section Onsite sewage systems In order to prevent potential groundwater and shallow groundwater contamination and risks from becoming a significant drinking water threat, the establishment of all new onsite sewage systems must adhere to the following criteria. Design must comply with site specific effluent requirements (objectives, limits, triggers, monitoring, reporting, contingencies, etc.) as established at early stage during pre-application consultation with ministry District/Regional Offices. Maintenance inspections by a qualified person. Operational plan, which at a minimum shall include, but not limited to: o Pump out and inspection of sewage underground tanks (including septic, balancing tanks, etc.) of each sewage system identified as moderate and high risk in the Sewage System Assessment Report. o Hydraulic test to assess for any leakage at the time of the pump out. o Removal of any trees, where they or their roots, are growing in the leaching beds. 12

13 24 February 2017 Table 3: Risk Management Approach for ECA Applications for Sewage Works identified as a Significant Drinking Water Threat Sewage Sub-Threat Activity Requirements for ECA Applications o Preparing public information brochure for distribution (in cases of larger sites with more than one resident on site) regarding taking care of septic systems. o Prohibit the construction of any structures such as decks, patios, or sheds over the disposal fields, as well as there should be no parking or driving vehicles over the surface of disposal fields and over any other components of the onsite sewage system. Holding tanks The ministry will not issue approvals for new underground holding tanks as current design and operational measures are not sufficient to ensure the activity will never become a significant drinking water threat. The proponent may only consider installation of above-ground tanks in compliance with the current requirements for holding tanks (Ministry Guideline F-9 and Ontario Building Code -OBC), subject to a site-specific review. Same as General section. Inspections of holding tanks every five (5) years for assessment of holding tanks structural integrity including a hydraulic septic test to assess for any possible leakage, and complete with a written assessment and recommendations. 13