Annual CCR Fugitive Dust Control Report

Transcription

1 Annual CCR Fugitive Dust Control Report Mill Creek Generating Station Louisville Gas & Electric Company Jefferson County, Kentucky December 2017

2 Annual CCR Fugitive Dust Control Report Mill Creek Generating Station Page 1 Table of Contents Section 1 Report Requirements... 2 Section 2 Actions Taken to Control CCR Fugitive Dust... 2 General Practices... 2 Fly Ash Storage and Handling Unit... 2 Landfill... 2 Unpaved Roads... 3 Paved Roads... 3 Surface Impoundments... 3 Ash Pond... 3 Emergency Pond... 3 Runoff Pond... 3 Dead Storage Pond... 3 Clearwell Pond... 4 Section 3: Complaints... 4 Section 4: Corrective Measures Taken Due to Complaints... 4

3 CCR Fugitive Dust Control Report Mill Creek Generating Station Page 2 Section 1 Report Requirements The Mill Creek Generating Station is required to post an Annual CCR Fugitive Dust Control Report in accordance with 40 CFR (c). This report covers the period of 10/19/ /19/2017. Applicable and appropriate CCR fugitive dust control measures for the Mill Creek Generating Station are outlined in the CCR Fugitive Dust Control Plan for the facility and covers operations for ash storage areas, paved and unpaved roads and surface impoundments. This report includes a description of the actions taken by the owner or operator to control CCR fugitive dust, a record of all citizen complaints, and a summary of any corrective measures taken for the applicable areas. This report will be placed in the facility operating record as required by 40 CFR (g)(2). Section 2 Actions Taken to Control CCR Fugitive Dust General Practices The CCR qualified person or designee was available during hauling and placement activities and assessed the need for dust control on a continuing basis. Watering was used to control fugitive dust emissions. The frequency was adjusted based upon weather conditions and suspended when ambient air temperatures fell below freezing or ice was present. A water log was maintained to document when watering was required. Fly Ash Storage and Handling Unit Transfer of materials was suspended when conveying equipment was not in proper working condition. Gypsum was sluiced to the process and the moisture content was adjusted as necessary to minimize dusting. Fly ash was conditioned with water prior to being placed in the landfill. Mitigation procedures were used to prevent fugitive emissions from trucks hauling dry material likely to become airborne. Examples include wetting of the material, covering of the trucks, etc. Landfill CCR material was conditioned with service water in the pug mill systems prior to loading into trucks and transport to the landfill. CCR was bladed in place in approximate horizontal, 12-inch maximum lifts. Erosion control was achieved through compaction in accordance with the plant s Special Waste Landfill Permit.

4 CCR Fugitive Dust Control Report Mill Creek Generating Station Page 3 Visual inspections were conducted at the landfill for fugitive dust and areas were watered as needed. A water log was maintained to document when watering was required. Vehicular traffic for site roads was restricted for authorized use only with signage limiting speed to 15 mph. Unpaved Roads Mill Creek utilized a water truck(s) to keep the roadways and entrance and exit areas within the site wet in order to control fugitive dust emissions. Mill Creek maintained records for the watering operations performed on all unpaved roads. Vehicular traffic on landfill haul roads and site roads was restricted for authorized use only with signage limiting speed to 15 mph. Paved Roads Access for all passenger vehicles was limited to paved roads and parking lots to prevent the generation of dust, unless required for direct performance of operational duties. Material transferred to paved roads that could cause fugitive dusts was cleaned. Roads were maintained in a manner as to prevent the tracking of debris onto any public road. Surface Impoundments Ash Pond Vehicular traffic on ash pond haul roads and site roads was restricted for authorized use only with signage limiting speed to 15 mph. A water truck(s) was utilized as needed to control fugitive dust emissions. Bottom ash was deposited via a wet process. Temporary storage piles were watered as necessary based on visual observations. Stockpiled material was either placed in the landfill, sent offsite for beneficial reuse, or relocated to another area of the pond for drainage and settlement time. Emergency Pond Unit was backfilled and closed. Runoff Pond Gypsum contact water was collected via a wet process to minimize fugitive dust. Dead Storage Pond Gypsum contact water was collected via a wet process to minimize fugitive dust.

5 CCR Fugitive Dust Control Report Mill Creek Generating Station Page 4 Clearwell Pond Cooling Tower waters and overflow waters from Dead Storage Pond was collected via a wet process to minimize fugitive dust. Section 3: Complaints Complaints related to CCR management may be received through the LG&E and KU website, Customer Commitment, Facility Voice Message System or a Regulatory Agency. A summary of any complaints received is provided below. LG&E and KU website No complaints related to CCR fugitive emissions were received. Customer Commitment No complaints were received based upon a query of all customer complaints for the facility in relation to the key words dust, fly ash, coal combustion residuals, CCR Rule, ash ponds, surface impoundments, paved roads, unpaved roads and haul roads. Facility Voice Message System No complaints related to CCR fugitive emissions were received. Regulatory Agency No complaints related to CCR fugitive emissions were relayed by the Louisville Air Pollution Control Board to Environmental Affairs or the facility. Section 4: Corrective Measures Taken Due to Complaints No complaints were received or additional corrective measures initiated during the reporting period for fugitive dust related to the CCR areas identified in Section 2.