Annual Environmental Report 2017

Transcription

1 Annual Environmental Report 2017 Agglomeration Name: Ardfert Licence Register No. D

2 Contents Section 1. Executive Summary and Introduction to the 2017 AER Summary Report on Section 2. Monitoring Reports Summary Summary report on monthly influent monitoring Discharges from the agglomeration Ambient Monitoring Summary Pollutant Release and Transfer Register (PRTR) - report for previous year 7 Section 3. Operational Reports Summary Treatment Efficiency Report Treatment Capacity Report Extent of Agglomeration Summary Report Complaints Summary Reported Incidents Summary Sludge / Other inputs to the WWTP 11 Section 4. Infrastructure Assessments and Programme of Improvements Storm water overflow identification and inspection report Report on progress made and proposals being developed to meet the improvement programme requirements. 13 Section 5. Licence Specific Reports Priority Substances Assessment 17 Section 6. Certification and Sign Off 18 Section 7. Appendices 19 Appendix 7.1 Statement of Measures / Improvement Programme 19 Appendix 7.2 Ambient Monitoring 20 2

3 Section 1. Executive Summary and Introduction to the 2017 AER 1.1 Summary Report on 2017 This Annual Environmental Report has been prepared for D , Ardfert, in County Kerry, in accordance with the requirements of the wastewater discharge licence for the agglomeration. The agglomeration is served by a wastewater treatment plant with a Plant Capacity PE of 450. The treatment process includes the following: - Preliminary Treatment (Coarse Screening) Primary Treatment (Imhoff Tank) The final effluent from the Primary Discharge Point was non-compliant with the Emission Limit Values in The following parameters exceeded the emission limit values in 2017: - BOD (mg/l) TSS (mg/l) 176,000kgs total weight liquid sludge was removed from the wastewater treatment plant in Sludge was transferred to Tralee WWTP There were no major capital or operational changes undertaken in The planned construction of a new WWTP as required in Schedule C.1 of the Licence is still being undertaken, with construction approximately 80% completed. Commissioning will follow the planned completion period in autumn An Annual Statement of Measures is included in Appendix 7.1 3

4 Section 2. Monitoring Reports Summary 2.1 Summary report on monthly influent monitoring Table 2.1 Influent Monitoring Summary Monthly Influent BOD Monitoring (mg / l) COD (mg / l) SS (mg / l) Hydraulic Loading (m3/d) Number of Samples Annual Max Unknown Annual Mean Unknown No flow recorded at the inlet or effluent discharge point Other inputs in the form of sludge/leachate are added to the WWTP after the influent monitoring point and are therefore not represented by influent monitoring. Other inputs, where relevant, are detailed in Section 3.6. Significance of results The annual mean organic loading is less than the Treatment Plant Capacity as detailed further in Section 3.2. The annual maximum organic loading is less than the Treatment Plant Capacity as detailed further in Section

5 2.2 Discharges from the agglomeration Table Effluent Monitoring Effluent Monitoring Summary BOD (mg/l) TSS (mg/l) WWDL ELV (Schedule A) where applicable n/a n/a ELV with Condition 2 Interpretation included n/a n/a % Reduction (Schedule A) 20% 50% Number of sample results 7 7 Number of sample results above WWDL ELV 4 2 Number of sample results above ELV with Condition 2 Interpretation Annual Mean (for parameters where a mean ELV applies) Overall Compliance (Pass/Fail) Fail Fail Significance of results The WWTP was non-compliant with the ELV's set in the wastewater discharge licence. There were 6 samples non-compliant with the ELVs in relation to BOD (mg/l), TSS (mg/l). The non-compliance is due to an overloaded WWTP. The impact on receiving waters is assessed further in Section

6 2.3 Ambient Monitoring Summary Table 2.3. Ambient Monitoring Report Summary Table Ambient Monitoring Point from Irish Grid EPA Feature Bathing Drinking FWPM Shellfish WWDL (or as agreed with EPA) Reference Coding Tool code Water Water Upstream Monitoring Point 79037, IE_SH_23T Downstream Monitoring Point 76005, IE_SH_23T No No No No Table Ambient Impact Assessment Table Ambient Monitoring Point from Current cbod 0-Phosphate Ammonia Nitrogen WWDL (or as agreed with EPA) WFD Status (as P) (as N) Upstream Monitoring Point Poor Downstream Monitoring Point Unassigned Difference between Upstream and Downstream EQS % of Eqs 2.7% 40.0% -21.4% The results for the upstream and downstream monitoring and/or additional monitoring data sets from KCC Lab & Southern Scientific are included in the Appendix

7 Significance of results The WWTP was non-compliant with the ELV s set in the wastewater discharge licence as detailed in Section 2.2. The receiving waters do not meet the EQS required. The discharge from the wastewater treatment plant has an observable negative impact on the water quality. The discharge from the WWTP has an observable negative impact on the Water Framework Directive status. 2.4 Pollutant Release and Transfer Register (PRTR) - report for previous year A PRTR is not required as the PE is < 2,000 7

8 Section 3. Operational Reports Summary 3.1 Treatment Efficiency Report cbod COD SS (kg/yr) (kg/yr) (kg/yr) Influent mass loading (kg/year) 28,832 50,313 23,114 Effluent mass emission (kg/year) 23,727 32,911 8,050 % Efficiency (% reduction of influent load) 18% 35% 65% 3.2 Treatment Capacity Report Table Treatment Capacity Report Summary Hydraulic Capacity Design / As Constructed (dry weather flow) (m3/day) 101 Hydraulic Capacity Design / As Constructed (peak flow) (m3/day) 303 Hydraulic Capacity Current loading (m3/day) Unknown Hydraulic Capacity Remaining (m3/day) 0 Organic Capacity - Design / As Constructed (PE) 450 Organic Capacity - Collected Load (PE) 957 Organic Capacity Remaining (PE) -507 Will the capacity be exceeded in the next three years? (Yes / No) Yes 8

9 3.3 Extent of Agglomeration Summary Report In this section Irish Water is required to report on the amount of urban waste water generated within the agglomeration. It does not include any waste water collected and created in a private system and discharged to water under a Section 4 Licence issued under the Water Pollution Acts 1977 (as amended). Table Extent of Agglomeration Summary Report % of P.E. load generated in the agglomeration Load generated in the agglomeration that is collected in the sewer network Load collected in the agglomerations that enters Unknown treatment plant Load collected in the sewer network but discharges without treatment (includes SWO, EO, and any discharges that are not treated) Estimated / Measured 100% Estimated Estimated 0% Estimated Load generated in the agglomeration that is collected in the sewer network is the total load generated and collected in the municipal network within the boundary of the agglomeration. Load collected in the agglomerations that enters treatment plant is that portion of the previous figure which enters the waste water treatment plant. Load collected but discharged without treatment is that portion of the first figure which is discharged without treatment. 3.4 Complaints Summary A summary of complaints of an environmental nature is included below. Table Complaints Summary Table Number of Nature of Complaint Complaints Number Open Complaints 0 N/A 0 0 Number Closed Complaints 9

10 3.5 Reported Incidents Summary A summary of reported incidents is included below. Table Summary of Incidents Incident Incident Description Type (e.g. Noncompliance, Emission, spillage, pollution incident) Non- ELV Exceedance Compliance Cause WWTP upgrade required to meet ELV No. of Incidents Recurring Incident (Yes/No) Corrective Action Authorities Contacted. Note 1 4 Yes WWTP Upgrade required IF, MI, SFPA, FSA, BIM Reported to EPA (Yes/No) Yes Closed (Yes/No) No Note 1: For shellfish waters notify the Marine Institute (MI) Sea Fisheries Protection Authority (SFPA) Food Safety Authority (FSAI) and An Bord Iascaigh Mhara (BIM). This should also include any other authorities that should be contacted arising from the findings of any Licence Specific Reports also e.g. Drinking Water Abstraction Impact Risk Assessment, Fresh Water Pearl Mussel Impact Assessments etc. Table Summary of Overall Incidents Number of Incidents in Number of Incidents reported to the EPA via EDEN in Explanation of any discrepancies between the two numbers above 10

11 3.6 Sludge / Other inputs to the WWTP Other inputs to the waste water treatment plant are summarised in Table 3.6 below. Table Other Inputs Input Type Quantity P.E. % of load to WWTP Included in Influent Monitoring? (Y/N) Is there a leachate/sludge acceptance procedure for the WWTP? (Y/N) Domestic /Septic 0 m % No No No Tank Sludge Waterworks Sludge 0 m % No No No Industrial / 0 m % No No No Commercial Sludge Landfill Leachate 0 m % No No No (delivered by tanker) Landfill Leachate (delivered by sewer network) 0 m % No No No Other (specify) 0 m % No No No Is there a dedicated leachate/sludge acceptance facility for the WWTP? (Y/N) 11

12 Section 4. Infrastructure Assessments and Programme of Improvements 4.1 Storm water overflow identification and inspection report A summary of the significance and operation is included below. The Stormwater Overflow Assessment was previously submitted in the AER 2016 Table SWO Identification and Inspection Summary Report WWDL Name / Code for Storm Water Overflow TPEFF1300D 0282SW002 Irish Grid Ref. E78102 N Included in Schedule A4 of the WWDL Significance of the overflow (High/Med/ Low) Compliance with DoEHLG criteria Yes Low Non- Compliant No. of times activated in 2017 (No. of events) Total volume discharged in 2017 (m3) Total volume discharged in 2017 (P.E.) Estimated / Measured data Unknown Unknown Unknown Estimated Table SWO Identification and Inspection Summary Report How much sewage was discharged via SWOs in the agglomeration in the year (m3/yr)? How much sewage was discharged via SWOs in the agglomeration in the year (p.e.)? What % of the total volume of sewage generated in the agglomeration was discharged via SWOs in the agglomeration in 2017? Is each SWO identified as non-compliant with DoEHLG Guidance included in the Programme of Improvements? The SWO assessment includes the requirements of relevant WWDL Schedules (Yes/No) Have the EPA been advised of any additional SWOs / changes to Schedules A/C under Condition 1? Unknown Unknown Unknown Yes Yes N/A 12

13 4.2 Report on progress made and proposals being developed to meet the improvement programme requirements. The Improvement Programme report addresses the Specified Improvement Programmes as detailed in Schedule C of the WWDL. It should detail other improvements identified through assessments required under the licence. Table Specified Improvement Programme Summary Specified Improvement Programmes Licence Schedule Licence Completion Date Date Expired Build and commission a new wastewater treatment plant to ensure compliance with the ELVs specified in Schedule A: Discharges and Discharge Monitoring of this licence. Improvement works to ensure compliance with Condition 1.7 Primary Discharge Point SW001 to be Status of Works C 31/12/2017 Yes Work ongoing onsite C 31/12/2017 Yes Work ongoing onsite C 31/12/2017 Yes Work ongoing onsite % Construction Work Completed Expected Completion Date Comments 80% Q New DBO WWTP 80% Q % Q

14 Discontinued Storm Water Overflow SW002 to be discontinued C 31/12/2017 Yes Work ongoing onsite 80% Q A summary of the status of any improvements identified by under Condition 5.2 is included below. Table Improvement Programme Summary Improvement Identifier / Name Improvement Description Improvement Source N/A Progress (% complete) Expected Completion Date Comments 14

15 Table Sewer Integrity Risk Assessment Tool Summary The Improvement Programme Risk Assessment should include an assessment of the Rating (High, integrity of the existing wastewater Medium, Low) works for the following: Risk Assessment Score Reference to relevant section of AER (e.g. Appendix 2 Section 4. Hydraulic Risk Assessment Score High 140 Appendix 7.6 & AER 2015 Environmental Risk Assessment Medium 305 Appendix 7.6 & AER Score 2015 Structural Risk Assessment Score High 150 Appendix 7.6 & AER 2015 Operation & Maintenance Risk Low 24 Appendix 7.6 & AER Assessment Score 2015 Overall Risk Score for the High 619 Appendix 7.6 & AER agglomeration 2015 Specified improvements N\A N\A N\A N\A N\A Comment N\A N\A N\A N\A N\A 15

16 Section 5. Licence Specific Reports Licence Specific Reports Summary Table Licence Specific Report Required by Condition 5 in Licence Required in this AER or outstanding from previous AER? Included in this AER? Reference to previous AER containing report or relevant section of this AER Priority Substances Assessment Required No No AER 2015 Drinking Water Abstraction Not Required Point Risk Assessment Shellfish Impact Assessment Required Yes No Assessment drafted, awaiting consultee responses prior to submission Pearl Mussel Report Not Required Toxicity/Leachate Management Not Required Toxicity of Final Effluent Report Not Required Small Stream Risk Score Not Required Assessment Habitats Impact Assessment Not Required Licence Specific Reports Summary of Findings Licence Specific Report Recommendations Summary of Recommendations in Report in Report Priority Substances Assessment Yes Based on the assessment carried out it is not considered that any further sampling or analysis is required. Drinking Water Abstraction Point N/A Risk Assessment Shellfish Impact Assessment Yes Assessment drafted, awaiting consultee responses prior to submission Pearl Mussel Report N/A Toxicity/Leachate Management N/A 16

17 Toxicity of Final Effluent Report Habitats Impact Assessment N/A N/A 5.1 Priority Substances Assessment The Priority Substance Assessment Report was submitted previously in AER A summary of the significance and operation is included below. Table Priority Substance Assessment Summary Report Does the assessment use the Desk Top Study Method or Screening Analysis to determine if the discharge contains the parameters in Appendix 1 of the EPA guidance? Does the assessment include a review of Trade inputs to the works? Does the assessment include a review of other inputs to the works? Does the report include an assessment of the significance of the results where a listed material is present in the discharge? (e.g. impact on the relevant EQS standard for the receiving water) Does the assessment identify that priority substances may be impacting the receiving water? Does the Improvement Programme for the agglomeration include the elimination / reduction of all priority substances identified as having an impact on receiving water quality? Recommendations Status of any improvement measures required Desk Top Study Yes Yes Yes No No Based on the assessment carried out it is not considered that any further sampling or analysis is required. N/A 17

18 Section 6. Certification and Sign Off Table Summary of AER Contents Does the AER include an executive summary? Does the AER include an assessment of the performance of the Waste Water Works (i.e. have the results of assessments been interpreted against WWDL requirements and or Environmental Quality Standards)? Is there a need to advise the EPA for consideration of a technical amendment / review of the licence? List reason e.g. additional SWO identified Is there a need to request/advise the EPA of any modifications to the existing WWDL? Refer to Condition 1.7 (changes to works/discharges) & Condition 4 (changes to monitoring location, frequency etc.) List reason e.g. failure to complete specified works within dates specified in the licence, changes to monitoring requirements Have these processes commenced? (i.e. Request for Technical Amendment / Licence Review / Change Request) Are all outstanding reports and assessments from previous AERs included as an appendix to this AER? Ensure the following reports are included Yes Yes No N/A No N/A N/A N/A Declaration by Irish Water The AER contains the following: Introduction and background to 2017 AER. Monitoring Reports Summary. Operational Reports Summary. Infrastructural Assessment and Programme of Improvements. Licence specific reports Certification and Sign Off Appendices I certify that the information given in this Annual Environmental Report is truthful, accurate and complete: Signed: Date: 20 th February, 2018 Michael O'Leary Acting Head of Environmental Regulation 18

19 Section 7. Appendices Appendix 7.1 Statement of Measures / Improvement Programme There were no major capital or operational changes undertaken in

20 Appendix 7.2 Ambient Monitoring Upstream Date Ammoni a (mg/l) Ortho P (mg/l ) BOD (mg/l ) Total N (mg/l ) Faecal Coli (mpn/100ml) E.Coli (mpn/100ml) Entercocci (mpn/100ml) ph Temp 25/01/ /03/ /04/ /05/ /07/ /09/ /11/ Mean , %ile , Downstream Date Ammonia (mg/l) Ortho P (mg/l ) BOD (mg/l ) Total N (mg/l ) Faecal Coli (mpn/100ml ) E.Coli (mpn/100ml ) Entercocci (mpn/100ml ) 25/01/ /03/ /04/ /05/ /07/ /09/ /11/ Mean , %ile , ph Tem p 20