N.H. Code Admin. R. Env-Wq 1608.12

Current through Register No. 25, June 20, 2024

Section Env-Wq 1608.12 - Soil Testing for Land Application Sites

(a) Prior to filing an application for a site permit, one soil test pit of at least 40 inches deep shall be dug for each soil mapping unit shown on the soil map required by Env-Wq 1608.01(c)(3).

(b) One soil test pit or auger boring shall be dug to a depth of at least 4 feet in each area proposed for stockpiling.

(c) The results of the soil test pits or auger bores required by (a) or (b), above, shall be analyzed and described, including a description of the soil profile characteristics, depth to seasonal high water table, and depth to bedrock or other restrictive layer.

(d) Soil samples from each field proposed to be used for land application shall be collected:

(1) Within 6 months prior to submittal of the permit application and again within 3 months prior to the end of the permit term; and

(2) As instructed by the accredited laboratory that will conduct the soil analyses, for example as specified on the university of New Hampshire cooperative extension's soil collection form for biosolids and septage spreading.

(e) The soil samples collected pursuant to (d), above, shall be analyzed by a laboratory accredited under Env-C 300 to analyze water for metals, for:

(1) Arsenic, measured as mg/kg;

(2) Cadmium, measured as mg/kg;

(3) Chromium, measured as mg/kg;

(4) Copper, measured as mg/kg;

(5) Lead, measured as mg/kg;

(6) Mercury, measured as mg/kg;

(7) Molybdenum, measured as mg/kg;

(8) Nickel, measured as mg/kg;

(9) Selenium, measured as mg/kg; and

(10) Zinc, measured as mg/kg.

(f) Soil samples from each field used for land application of septage shall be collected:

(1) Once per year;

(2) As instructed by the accredited laboratory that will conduct the soil analyses, for example as specified on the university of New Hampshire cooperative extension's soil collection form for biosolids and septage spreading; and

(3) No more than 3 months prior to the initial application for that year.

(g) Samples collected pursuant to (f), above, shall be analyzed by the analytical services laboratory at UNH cooperative extension services or by a laboratory using a comparable method that produces equivalent results for:

(1) Soil acidity, measured as pH;

(2) Buffer pH;

(3) Texture;

(4) Calcium;

(5) Magnesium;

(6) Potassium;

(7) Phosphorus; and

(8) Organic matter.

N.H. Code Admin. R. Env-Wq 1608.12

#6991, eff 5-5-99; ss by #8458, eff 10-27-05 (see Revision Note at chapter heading); ss by #10466, eff 11-26-13