Permit To Take Water Inspection Report

Ministry of the Environment and Climate Change Ministère de l Environnement et de l Action en matière de changement climatique Permit To Take Water Inspection Report Client: Inspection Site Address: Miller Paving Limited Mailing Address: 287 Ram Forest Road, Gormley, Ontario, Canada, L0H 1G0 Physical Address: 356 Miller Rd, Kawartha Lakes, City, Ontario, Canada, L0K 1B0 Telephone: (705)484-1101, FAX: (705)484-5092, email: johnl@millergroup.ca Client #: 9170-5XJLSA, Client Type: Corporation, NAICS: 212315 Miller Aggregate Resources Quarry Address: Lot: 8 to 11, Concession: 2, Approxiamtley 3/4 Km's east of Upper Dalrymple Lake, Geographic Township: CARDEN, Kawartha Lakes, City District Office: Peterborough LIO GeoReference: Zone:, UTM Easting:, UTM rthing:, Latitude: 44.6017, Longitude: -79.0945 Site #: 5536-97XL8P Contact Name: Rob Lindsay Title: Manager Operations Contact Telephone: (705)484-1101 ext Contact Fax: (705)484-5092 Last Inspection Date: 2004/03/15 Inspection Start Date: 2014/12/04 Inspection Finish Date: 2014/12/04 Region: 1.0 INTRODUCTION Eastern The Miller Group is a diversified Canadian company that services rth America. It provides public and private sectors with road construction, paving, road rehabilitation, engineering construction, waste management and recycling services, transit operations, winter maintenance services, aggregate-based materials, cement and ready-mix concrete. This inspection focused on the water taking at the Carden quarry operated by Miller Paving Limited in former Carden Township, City of Kawartha Lakes. The Miller Carden Quarry is located approximately 0.75 kilometres south-east of Dalrymple Lake. The quarry has a licensed area of 338 hectares of which approximately 10 ha is being actively excavated. A detailed file review was completed before the inspection. This site holds a valid Environmental Compliance Approval (ECA) for industrial sewage, a Permit to Take Water (PTTW), ECA (Air) for the asphalt plant and another ECA (Air) for the crushing and processing equipment. This site also has a valid generator registration number on the Hazardous Waste Information Network (HWIN). The purpose of this proactive inspection was to determine compliance with Permit to Take Water #8054-9NYSJR issued on Sept. 16, 2014, Ontario Water Resources Act and all other applicable provincial environmental legislation. This inspection was conducted by Provincial Officer Cathy Curlew and Rob Lindsay, Manager of Operations, Miller Carden Quarry. 2.0 INSPECTION OBSERVATIONS Permit Number: 8054-9NYSJR Expiry June 30, 2020. Page 1

Amended Permit to Take Water (PTTW) #8054-9NYSJR was issued to Miller Paving Limited on September 16, 2014. PTTW # 2431-8FXKP4 that was issued on May 6, 2011 and was amended to acknowledge water taking from office well OW5 for employee restrooms in the facility. This amendment was made in response to MOE comments regarding the 2013 Annual Monitoring Report for the Site. 2.1 PURPOSE OF TAKING Dewatering Additional Comments: Water is taken mainly for dewatering the quarry floor but also for aggregate washing and dust control. 2.2 SYSTEM DESCRIPTION Surface water source: Ground water source: Yes The quarry operations extend to below the perched water table in the surface weathered rock and dewatering is required to maintain a dry working area and to provide water for washing crushed aggregate. The wash system is closed loop so water is not taken for washing purposes on a continual basis but rather only when needed. Water is also taken for dust control purposes around the site. Water is pumped from the sump pond located in the south-west corner of the quarry and collected in the freshwater pond for storage, water in the freshwater pond is either used for aggregate washing or is discharged to the sediment pond and eventually travels off-site through the discharge channel. Discharged water flows overland for approximately 100 metres before it enters a small stream which eventually flows to Dalrymple Lake. 2.3 QUANTITY ASSESSMENT The permit authorizes the following takings: location category max/ minute (litres) max hours/day max litres/day max days /year sump pond dewatering 4000 24 5,760,000 200 sump pond (spring dewatering 4500 24 6,500,000 30 freshet and heavy precip.) sump pond other (dust) 4000 2 50,000 100 freshwater pond aggregate washing 4000 16 3,840,000 180 The total permitted taking per day is 6,500,000 litres. A submersible pump (max flow rate 3,824 L/min) is used to pump water from the sump to the freshwater pond where it is either used for aggregate washing or discharged to the stream that flows off-site and eventually to Lake Dalrymple. Aggregate washing is usually performed from April to vember and water is circulated in a closed loop system. If water levels become too high in the sump pond and freshwater pond due to spring run-off or heavy precipitation water is discharged through a channel/natural stream to the Beaver pond. A splitter valve is opened on the pump line and water is discharged to the Beaver pond at the south end of the property. A flow meter was installed in May 2005 to record discharge volumes as required by the PTTW. The 2013 Annual Monitoring Report for the PTTW and Industrial Sewage ECA reports that the wash plant water taking limit, the dust control taking limit and the sump pond water taking for dewatering was not exceeded in 2013. Condition 3.3-3.6 of PTTW #8054-9NYSJR requires the following: 3.3 twithstanding Table A above, the Permit Holder shall ensure that no water is taken prior to March 1st or after vember 30th from source 3 and 4 in Table A above for each year this Permit is valid. During the inspection I was informed that water taking for washing and dust control generally occurs between May - vember. takings for washing or dust control outside of the specified time period have occurred. Page 2

3.4 The Permit Holder shall ensure that water taken from source 3 in Table A above is used exclusively for dust control. In order to maintain compliance with PTTW #8054-9NYSJR the number of truck loads used for dust control is recorded daily. 3.5 The maximum daily water taking at the site shall never exceed 6,500,000 litres per day. In order to ensure compliance the pump capacities for the sump pond is below 6, 500, 000 L/day. There are two pumps in the sump pond. A flow meter is installed on the wash plant and a flow meter is installed on the discharge from the sump to measure dewatering. Data included in the 2013 Annual Monitoring Report informed that no greater than 4,900,000 L/day was taken for dewatering in February, March, April, August 2013 and no greater than 3,200,000 L/day was taken for the wash plant in September 2013. In 2013 and 2014 the site did not exceed takings greater than 6,500,000 litres/day. 3.6 The Permit Holder shall ensure that the maximum daily taking from the office well (OW5) does not exceed 450 litres per day and that the maximum rate of taking does not exceed 71 litres per minute. OW5 is used only as a water supply for the adjacent office washroom which has two toilets and 3 sinks (not potable). Based on estimates from the Ontario Building Code and six office staff (typically only four on a normal day) the estimate water volume used daily is 75 L/day per employee or a total 450 litres per day. 2.4 ASSESSMENT OF OTHER PERMIT CONDITIONS Permit to Take Water #8054-9NYSJR contains twelve conditions specific to monitoring for impacts on and off the site. changes to the monitoring program were made in 2014. All groundwater monitoring conducted in 2013 met all monitoring requirements as outlined in the PTTW with the exception of water levels at monitoring well OW1. This well was damaged and needed replacement. During the inspection on-site staff informed me that the replacement monitoring well was installed in July 2014 and was included in the remaining monitoring program for 2014. Water taking flow meters were most recently calibrated in the spring 2013. Condition 4.5 states: 4.5 For the duration that this Permit is valid, the Permit Holder shall maintain the quarry depth (quarry base floor elevation) at an elevation at least two (2) metres above the geologic unit known as the Upper Green Marker Bed located in the limestone bedrock of the Gull River Formation. Further impact assessment must be submitted at the time of renewal or amendment of this Permit in order to modify this quarry depth limitation. In 2012 A Sump Pumping Test Hydrogeological Assesment was conducted by Aecom and a report detailing the results was submitted to the ministry in August 2014. The ministry's hydrogeologist, Shawn Trimper concluded following his review of the report that "the report has not accurately assessed the expected impacts based on the proposed quarry deepening and as such, the allowable quarry depth should not be extended beyond that currently approved in PTTW #8054-9NYSJR at this time." In his technical memorandum dated October 28, 2014, Shawn requested that the status and intended plan for all open wells (OW series monitoring wells) at the site be provided. At the time of writing this report the ministry had not received a reply to this technical memorandum from Miller or Aecom. The 2013 Annual Monitoring report for the PTTW and Industrial Sewage ECA for the site was reviewed by Shawn Trimper, Hydrogeologist in the ministry's technical support section. Shawn included his comments and recommendations in a technical memorandum dated July 4, 2014, included below are the discussion and recommendations by Shawn and a short-version of the response to those recommendations provided by Aecom in a letter dated August 11, 2014 (please refer to the letter addressed to Shawn Trimper and signed by Patty Wong and Don McQuay, Aecom): The current report does not indicate the depth of the quarry or quarry sump, nor does it provide the aerial extent of the quarry operations. These details (and a historical record by year) should be provided in future annual reports. Future monitoring reports should also provide a cross section showing the status of quarry operations and the location of Page 3

monitoring wells with respect to the various geological formations (similar to Figure 5 of the 2010 Hydrogeological Updates Report by AECOM). The provided schematics should clearly show the depth of the quarry with respect to the upper green bed so compliance with operating depth can be assessed. Aecom indicated that the extent of the quarry operations based on the annual surveying routinely completed by Miller will be submitted in future reports. The reports will also include a geological cross-section showing the extent and depth of the excavation in relation to the greenbeds. Borehole logs should be provided in future annual reports. The current report does not indicate which monitors are completed in which geological feature. Aecom responded future reports will contain borehole logs. The report indicates that monitoring well OW5 is used as an onsite water supply. This source is not identified in the current PTTW. The current PTTW must be amended to include water takings from the onsite supply well. This has been completed and amended PTTW #8054-9NYSJR was issued on September 16, 2014. I conclude that monitoring conducted in 2013 was conducted in compliance with those conditions imposed in the PTTW with the exception of monitoring well OW1. This monitoring well must be repaired or replaced. This monitoring well was replaced in August 2014. I conclude that groundwater levels in 2013 were similar to recent years and the analysis provided by AECOM is sufficient. no response I conclude that a number of analytical parameters are showing increasing trends at a number of monitoring locations. AECOM indicates that these values are anomalous or unrelated to quarry activities. I conclude that an insufficient data record exists to draw any conclusions regarding groundwater quality and potential quarry impacts. Groundwater monitoring should continue to be conducted and future reports should continue to provide interpretation of these results. Should increasing trends continue to occur, additional groundwater quality monitoring may be warranted and should be considered to determine if quarry operations are impacting groundwater quality in the area. Aecom responded "We will continue to collect groundwater quality samples from the monitors specified on the PTTW and compare them to historic water quality at that location, background water quality and against regulatory standards. Quality results will be examined for trends and indications of quarry impacts. Should increasing trends occur that appear to be a result of quarrying activities, additional ground water monitoring will be considered. AECOM has recommended no changes to the monitoring program in 2014. I concur with this recommendation. no response 2.5 ASSESSMENT OF REGULATION 387/04 not applicable Page 4

3.0 REVIEW OF PREVIOUS NON-COMPLIANCE ISSUES The previous PTTW inspection conducted in 2004 required the following action items: 1) Miller paving must submit to this office of the Ministry of the Environment a copy of the 2003 Annual Monitoring Report for this site. Status: completed During this site inspection I observed Sewage, being drainage, storm water and commercial waste (from aggregate washing), as defined by the Ontario Water Resources Act (OWRA). Sewage Works were observed to be in place at this site for the collection, transmission, treatment and disposal of the sewage. This sewage works included constructed channels for the collection and transmission of sewage, as well as a sludge pond for the treatment and disposal of the sewage through sedimentation and exfiltration. Seasonal off property discharge of sewage was also observed at the time of this inspection. As this system has been established to collect, transmit, treat and dispose of sewage produced at this site it requires a Certificate of Approval for Sewage Works under Section 53 of the OWRA. Therefore Miller Paving Limited must retain the services of a qualified person to complete and submit, by May 1, 2004, a completed application, the appropriate fee, and all supporting documentation in accordance with the documents entitled: a) "Application for Approval of Industrial Sewage Works", b) "Guide for Applying for Approval of Industrial Sewage Works, Sections 53, Ontario Water Resources Act, Environmental Assessment and Approvals Branch, vember 1999", c) "Guide - Application Costs for Sewage Works, s.53 - Ontario Water Resources Act - Ministry of the Environment", d) "Costs for Ontario Water Resources Act s. 53 Applications - Supplement to Application for Approval", for a Certificate of Approval for Industrial Sewage Works for the above noted site, to the Environmental Assessment and Approvals Branch of the Ministry of the Environment. Status: This was completed and Industrial Sewage ECA #9412-6GWJM6 was issued to Miller Paving Limited on December 1, 2005. An inspection on the sewage works and compliance with ECA #9412-6GWJM6 was completed at the same time as this inspection and the results are included in a separate inspection report. 4.0 SUMMARY OF INSPECTION FINDINGS (HEALTH/ENVIRONMENTAL IMPACT) Was there any indication of a known or anticipated human health impact during the inspection and/or review of relevant material, related to this Ministry s mandate? Was there any indication of a known or anticipated environmental impact during the inspection and/or review of relevant material? Page 5

Was there any indication of a known or suspected violation of a legal requirement during the inspection and/or review of relevant material which could cause a human health impact or environmental impairment? Was there any indication of a potential for environmental impairment during the inspection and/or the review of relevant material? Was there any indication of minor administrative non-compliance? 5.0 ACTION(S) REQUIRED There are no action items required as a result of this inspection. 6.0 OTHER INSPECTION FINDINGS An inspection of the industrial sewage works and compliance with ECA #9412-8GWJM6 was completed at the same time as this inspection and the results are contained in a separate inspection report. 7.0 INCIDENT REPORT t Applicable 8.0 ATTACHMENTS PREPARED BY: Environmental Officer: Name: District Office: Date: 2014/12/22 Signature Cathy Curlew Peterborough District Office REVIEWED BY: District Supervisor: Name: Jim Martherus District Office: Peterborough District Office Date: 2014/12/24 Page 6

Signature: File Storage Number: SI KL CA MI 220 - MILLER CARDEN QUARRY te: "This inspection report does not in any way suggest that there is or has been compliance with applicable legislation and regulations as they may apply to this facility. It is, and remains, the responsibility of the owner and/or the operating authority to ensure compliance with all applicable legislative and regulatory requirements" Page 7