2018-02-20_PERMIT FILE - M2017036

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1.0 INTRODUCTION In September 2017, Loveland Ready Mix (LRM) submitted an application to the Colorado Division of Reclamation Mining and Safety (Division) to permit the proposed Laporte sand and gravel operations; "Knox Pit Construction Material Application DRMS 112", DRMS No. M-2017-036. As part of the approval process the Division has requested LRM submit a groundwater quality monitoring plan and sufficient data to determine baseline groundwater quality and demonstrate the site will be in compliance with CDPHE Water Quality Control Commission (WQCC) Regulation 41: Basic Standards for Groundwater during the tenure of the mine and reclamation. This Sampling and Analysis Plan (SAP)describes the sampling and analysis methods and monitoring schedule that will be employed for the collection of groundwater quality samples and water samples from the water management pond at the Loveland Ready Mix Concrete, Inc. (LRM), Laporte Operations (Site). The site, monitoring well locations, and water management pond are shown on Figure 1. Groundwater elevation contours for the area are included in Figure 2. 2.0 OBJECTIVE The objective of this SAP is to characterize baseline groundwater quality in the aquifer underlying the proposed Site (Cache La Poudre Alluvial Aquifer), ensure mining and reclamation activities at the Site do not degrade existing groundwater quality/uses and that the water quality collection methods guarantee data quality. The SAP includes: • Collection of ground water samples • Collection of water samples from the water management pond • Collection of ground water quality data • Documentation of data collection activities • Analytical methods and detection levels • Sampling protocols • Quality Assurance and Quality Control (QA/QC) Loveland Ready-Mix Concrete.Inc. 1 Telesto Solutions,Inc. 201e0227_Irm_v ._g.._w_ro I da= February 2018-REV1