15A NCAC 13B .0840 SAMPLING AND ANALYSIS
(a) Monitoring or sample analysis required by this Section, and all costs involved, are the responsibility of the septage management firm, site operator, or the owner of the wastewater system, as appropriate. This includes all costs of analysis of sampling, handling, and testing.
(b) The permit holder of a septage land application site shall arrange for annual representative soil samples to be taken from each field at the permitted site during the last quarter of each calendar year.
(c) Soil samples shall be taken annually from each area designated as a separate field of a septage land application site and analyzed for cation exchange capacity, pH, phosphorus, potassium, calcium manganese, magnesium, zinc, and copper. Analysis for other metals shall be required when zinc levels reach 30 pounds per acre or copper levels reach 35 pounds per acre. Sites permitted to receive septage, other than domestic septage, shall be sampled annually to determine compliance with 40 CFR 257.3-6.
(d) Domestic septage and grease septage shall be monitored in accordance with 40 CFR Part 503.16(b).
(e) Domestic treatment plant septage proposed to be land applied at a permitted septage land application site shall be sampled before the initial application, and annually thereafter, prior to being removed from a treatment facility for the following:
(1) Metals addressed in 40 CFR 503.13; and 15
(2) Total solids, pH, ammonia, nitrates, total kjedldahl nitrogen (TKN), biochemical oxygen demand (BOD), chemical oxygen demand (COD), total phosphorus, potassium, sodium and magnesium.
(f) Industrial or commercial septage, or commercial treatment plant septage, proposed to be land applied at a permitted septage land application site, shall be sampled prior to being removed from a wastewater system. Analytical results shall be submitted to the Division for consideration prior to the issuance of a permit or approval to land apply the septage. Analysis shall be conducted for:
(1) Metals addressed in 40 CFR 503.13;
(2) Total solids, pH, ammonia, nitrates, TKN, BOD, COD, total phosphorus, potassium, sodium and magnesium; and
(3) Organic chemicals, using a complete Toxicity Characteristic Leaching Procedure or other appropriate sampling, such as EPA Test numbers 8240 or 8270, unless an examination of the industrial process and the material used indicates less extensive analysis is acceptable.
Sample analysis shall be performed by a laboratory certified for waste analysis. Analysis shall be conducted in accordance with 40 CFR Part 503.8. Organic chemical analysis shall be conducted according to Subparagraph (f)(3) of this Rule. Results from the North Carolina Department of Agriculture and Consumer Services laboratory will be accepted where appropriate.
History Note: Authority G.S. 130A-291.1; Eff. October 1, 2009.