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Niagara River Remedial Action Plan Stage 2 Update Report

Niagara River Remedial Action Plan Stage 2 Update Report

Conservation beach. It

Conservation beach. It is less clear whether urban sources within the AOC may also be impacting beaches in the vicinity of Niagara-on-the-Lake, and to what extent New York-based Niagara River sources, or contributions from Lake Erie may be impacting these beaches as well. An important monitoring/ assessment recommendation, as outlined in section 5.0, is to investigate sources and conditions affecting E. coli levels at Binbrook Conservation beach, and (although a lower priority) at Bowen Road, Queens Royal and Ball Street beaches. 3.0 Current Status of the Impairment The impairment is assessed for beaches in the Welland watershed (table 3) and for beaches of the Niagara River (table 4) based on evidence presented in section 2.0 of this document. The impairment assessment is split this way since beaches on the Niagara River and the river itself are likely minimally affected by anthropogenic activity in the Ontario portion of the AOC and are also subject to sources outside of it, while beaches of the Welland watershed upstream of the Chippawa Power Canal are subject to the impacts of such activity within specific areas. Overall, this BUI is listed as impaired due to the frequency and duration of beach postings, and their likely association with anthropogenic activity, at Binbrook Conservation beach. Table 3: Evaluation of impairment status for the Welland River watershed Question Result Comments Existence of public beaches in AOC? Evidence of chronic beach postings? Association of the above with anthropogenic sources? Overall Impairment Assessment Result Yes Yes Likely Public beaches are at Binbrook Reservoir and Chippawa Creek Conservation Area. Frequency and duration of postings in the last decade at Binbrook Conservation beach have been infrequent with the exception of 1999 and the most recent years of 2003-2005. The latter years have shown a substantial and consistent increase in postings/exceedances, suggesting the need for additional investigation of sources. Simple mass-balance modelling carried out as part of the Niagara Water Quality Protection Strategy estimated substantial loads of E. coli from agriculture (65% of total) and urban storm runoff-related sources (31%-stormwater and CSO outfalls). Agricultural and rural sources are most likely associated to some extent with beach postings at Binbrook Conservation beach. Impaired 170

Niagara river remedial action plan stage 2 update Table 4: Evaluation of impairment status for the Niagara River portion of the AOC Question Result Comments Existence of public beaches in AOC? Evidence of chronic beach postings? Association of the above with anthropogenic sources? Overall Impairment Assessment Result Yes No Insufficient Evidence to Assess 4.0 Review of and Recommendations for Delisting Criteria 4.1 Existing Stage 2 Delisting Criterion The existing delisting criteria for this BUI are as follows: There are currently two public beaches along the Niagara River- Queens Royal and Ball Street beaches. Four beaches (Bowen Road, Princess Street, Dufferin Islands, and King’s Royal Park) have been closed by the Niagara Parks Commission since the Stage 2 report was published due to reasons other than water pollution. Overall, there has been a low frequency and duration of postings since 2001, with single years with a greater frequency of postings for both Niagara River beaches (2003 for Queens Royal and 2004 for Ball Street). Exceedances of the PWQO are typically not severe. It is unknown to what extent local sources influence E. coli levels in the Niagara River, given the volume of flow. Not Impaired (Proposed International Delisting Criteria for the Niagara River AOC) }} 90% of the wet weather (peak) flow and all dry weather flow in combined sewer system is treated to WPCP levels, on an annual basis. }} Use most stringent swimming water objectives for phosphorous, sediments, turbidity, and drinking water objectives for toxic chemicals (as there are no recreational objectives for toxic chemicals) of the jurisdictions involved. (For the Niagara River (Ontario) AOC) }} Ensure safe swimming: faecal coliforms less than 100 counts/100 mL; control sources of phosphorous with the goal of 30 ug/L in the Welland River and tributaries; secchi disk visibility greater than 1.2 m; water quality meets drinking water objectives for toxic chemicals. There are several shortcomings in these criteria, as follows: }} The Province of Ontario PWQO for Fecal Coliforms is no longer used, and has been replaced with the PWQO for E. coli of 100 colony-forming units (CFU) per 100 ml. }} There are many areas in the Great Lake which are not AOCs where the PWQO is not met 100% of the time. This is most likely due in part to natural quantities of bacteria such as from wildlife and other dispersed sources, which are temporarily elevated following rain events but which are not indicative of a chronic bacterial contamination problem. 171

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    Niagara River Remedial Action Plan

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    Above the River On the occasion of

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    Acronyms AGNPS AOC BUI CAER COA CSO

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    Issues identified in the Niagara Ri

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    Review of the Stage 2 Report Since

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    3) What remains to be done? It was

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    3) Degradation of Fish & Wildlife P

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    8) Eutrophication or Undesirable Al

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    Sommaire On compte autour des Grand

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    SECTEUR PRÉOCCUPANT (SP) DE LA RIV

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    2) Établissement d’un calendrier

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    Table 2: Critères régissant le re

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    5) Déformations ou problèmes de r

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    xxv 17. La proximité, la dimension

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    List of Tables Table 1: Delisting C

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    List of Appendices Appendix 1: Tech

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    Area of Concern means a geographic

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    Quick Facts about the Niagara River

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    1.3 Brief overview of the Niagara R

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    Table 4 below shows the sources of

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    What is COA? The Canada-Ontario Agr

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    2.0 REVIEW THE GOALS OF THE NIAGARA

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    Table 6: Summary of Theme Categorie

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    2.2 Review of the Recommendations a

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    High Rate Treatment Facility in Nia

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    Eutrophication is a term used to de

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    In addition to the NPCA, many other

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    Table 8: Niagara AOC Contaminated S

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    Lyons Creek West Figure 8: Lyons Cr

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    In June 2007, as part of the sedime

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    and others stakeholders, has been p

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    Liaison with Niagara Region (Niagar

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    2.2.6 Surveillance and Monitoring 1

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    2.2.7 Outreach and Education 1995 R

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    2.2.8 General 1995 Recommendations:

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    of the Implementation Annex. Opport

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    Biota/Habitat/ Land Use Human Healt

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    44 Charting a Course to Delisting

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    (3) Public Advisory Committee - com

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    6. Temporal trends in contaminant l

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    16. The percentage by area of wetla

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    Thus, a survey was completed for aq

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    Snapping Turtles Hatching Success a

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    Mink organ indices Other potential

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    Table 12: Binbrook Conservation Bea

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    This review concludes that of the 4

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    Figure 21: Performance of individua

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    Consequently, the Niagara River RAP

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    The study found that the number of

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    Colonial Waterbird survey in the Ni

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    3.10 Monitoring recommendations Des

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    The Big Picture The water of the Ni

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    4.0 What Remains to be Done? What e

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    All Fish and Wildlife Habitat Fish

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    5.1 Implementation As part of the r

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    5.2 New RAP Implementation Framewor

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    Appendix 1: Technical Reviewers Fro

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    Ontario Ministry of Agriculture, Fo

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    Appendix 4: A Brief History of Poll

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    Below is a summary of RAP highlight

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    2009 }} Presentation for comments a

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    Results show that statistically sig

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    Appendix 6: Influences on the Niaga

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    2000: The Niagara River RAP Impleme

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    In 2005, the Niagara Region began d

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    2004: Canadian Environmental Protec

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    2005: Provincial Policy Statement T

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    Appendix 7: Pollution Prevention an

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    The new Central PS/HRT has a capaci

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    McLeod Rd. Sewage Pumping Station a

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    Wetland Habitat (Hectares) Fiscal y

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    NOTE: Details in this appendix were

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    4. The Region of Niagara continue t

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    This Recommendation can be identifi

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    This Recommendation should be revis

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