Section Env-Or 611.04 - Contaminated Soil Sampling NOCS or NCS destined for off-site treatment or disposal shall be sampled and analyzed in accordance with the following prior to transportation off-site:
(a) Subject to (c), below, for stockpiled contaminated soils destined for off-site treatment or disposal, the responsible party shall collect representative samples in accordance with the following: (1) At least one composite sample shall be collected for every 200 tons destined for off-site treatment or disposal up to 2,000 tons, plus at least one composite sample for every 500 tons above the initial 2,000 tons;(2) Each composite sample shall consist of at least 8 discrete samples collected from the stockpile; and(3) Each discrete sample shall be taken from newly exposed soil a minimum of 12 inches deep within the stockpile and combined with the other required discrete samples to complete each composite sample;(b) Subject to (c), below, for in-situ contaminated soils destined for off-site treatment or disposal, the responsible party shall collect representative samples in accordance with the following: (1) At least one boring/test pit shall be completed for every 200 tons destined for off-site treatment or disposal up to 2,000 tons, plus at least one boring/test pit for every 500 tons above the initial 2,000 tons;(2) The borings/test pits required by (1), above, shall be completed on an evenly-spaced grid pattern throughout the contaminated soil area;(3) At least one boring/test pit shall be located in the most contaminated soil area;(4) At least one soil sample shall be collected from the contaminated zone of each boring/test pit required by (1) through (3), above;(c) If the quantity of NOCS is less than 50 tons, sampling and analysis shall not be required except as required by the receiving facility; and(d) Representative soil samples collected in accordance with (a) or (b), above, shall be analyzed for the chemicals of potential concern as identified through a history of site ownership and operation based on documented land use in accordance with ASTM E 1527 and previous sampling, and in accordance with the receiving facility's requirements.N.H. Admin. Code § Env-Or 611.04
(See Revision Note at chapter heading for Env-Or 600) #8812, eff 2-1-07
Amended by Volume XXXV Number 23, Filed June 11, 2015 , Proposed by #10831, Effective 6/1/2015, Expires6/1/2025.