Nevada Administrative Code
Chapter 445A - Water Controls
MINING FACILITIES
Permits for Facilities
Section 445A.396 - Contents of application: Meteorological report; analysis of samples

Universal Citation: NV Admin Code 445A.396

Current through September 16, 2024

An application for a permit must include:

1. A summary of the historical monthly averages of rainfall obtained from the nearest recording station to the site adjusted for conditions at the site;

2. The 24-hour storm events with an interval of recurrence of 10 years, 25 years, 100 years and 500 years;

3. The diurnal temperature variation from the nearest recording station to the site adjusted for conditions at the site;

4. Results from testing samples from the facility's mine site which are representative of the overburden, waste rock and ore at the proposed mine site that have characterized and evaluated the samples for their potential to release pollutants using the following analytical procedures:

(a) A meteoric water mobility procedure and Profile I analysis conducted using ASTM E2242-13, "Standard Test Method for Column Percolation Extraction of Mine Rock by the Meteoric Water Mobility Procedure," available from ASTM International, P.O. Box C700, 100 Barr Harbor Drive, West Conshohocken, Pennsylvania 19428-2959, by telephone at (877) 909-2786 or at the Internet address https://www.astm.org, for the price of $50, or the most recently promulgated version thereof that is approved in writing by the Department and scientifically demonstrated as achieving equivalent performance to the ASTM E2242-13 method in determining Profile I constituent concentrations; and

(b) The Nevada Modified Sobek Procedure, available from the State Department of Conservation and Natural Resources, 901 South Stewart Street, Carson City, Nevada 89701 or at the Internet website of the Division of Environmental Protection of the Department; and

5. If the results from testing samples pursuant to subsection 4 indicate a humidity cell test is also required, results from the humidity cell test conducted using ASTM D5744-18, "Standard Test Method for Laboratory Weathering of Solid Materials Using a Humidity Cell," available from ASTM International, P.O. Box C700, 100 Barr Harbor Drive, West Conshohocken, Pennsylvania 19428-2959, by telephone at (877) 909-2786 or at the Internet address https://www.astm.org, for the price of $72, or the most recently promulgated version thereof that is approved in writing by the Department and scientifically demonstrated as achieving equivalent performance to the ASTM D5744-18 method or another procedure, version or method approved in writing by the Department and scientifically demonstrated as achieving equivalent performance to the ASTM D5744-18 method in evaluating the potential of a sample to release pollutants.

Added to NAC by Environmental Comm'n, eff. 9-1-89-Substituted in revision for NAC 445.24292; A by R018-20A, eff. 8/26/2020

NRS 445A.425, 445A.465

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