New Hampshire Code of Administrative Rules
Env - Department of Environmental Services
Subtitle Env-Wq - Water Quality and Quantity Programs
Chapter Env-Wq 400 - GROUNDWATER PROTECTION
Part Env-Wq 402 - GROUNDWATER DISCHARGE PERMITS AND REGISTRATIONS
Section Env-Wq 402.15 - Additional Information

Universal Citation: NH Admin Rules Env-Wq 402.15

Current through Register No. 13, March 27, 2025

The applicant shall provide the following additional information:

(a) A table summarizing all groundwater and surface water monitoring results to date for the last 5 years from existing monitoring points unless a longer period is specifically requested by the department;

(b) A list of reports on land use history, activities, water quality, and hydrogeology associated with the property on which the facility is located;

(c) A detailed proposal for a groundwater and surface water quality monitoring program, including proposed monitoring schedule, parameters to be analyzed, and monitoring locations, with supporting information justifying the locations, frequency, and parameters selected;

(d) Boring log data, which for applications for rapid infiltration basin or septic system sites shall be based on soil samples collected on continuous intervals to the bottom of the boring, including:

(1) Soil sample descriptions according to:
a. "Standard Practice for Classification of Soils for Engineering Purposes, Unified Soil Classification System," American Society for Testing and Materials (ASTM) D2487-11, 2011, available as noted in Appendix B; or

b. "Standard Practice for Description and Identification of Soils Visual-Manual Procedure," ASTM D2488-09a, 2009, available as noted in Appendix B;

(2) Drilling methods; and

(3) "N-values" according to "Standard Test Method for Standard Penetration Test (SPT) and Split-Barrel Sampling of Soils," ASTM D1586-11, 2011, available as noted in Appendix B;

(e) Well construction details of existing monitoring wells, top of well casing elevations and measured depth to water table from top of casing;

(f) A table of locational coordinates for monitoring wells and surface water quality points that are proposed to be included in the monitoring program for the facility, referenced to north American datum of 1983 (NAD83) or world geodetic system of 1984 (WGS84) in degrees-minutes-seconds, decimal degrees, or equivalent state plane coordinate units;

(g) A table of water level measurements and elevations found in piezometers and monitoring wells used to develop the groundwater contours;

(h) A copy of the documentation recorded in the registry of deeds which acknowledges that easement ownership rights have been obtained to restrict the use of water wells within the groundwater discharge zone;

(i) Status of department approval of design plans and operations manual for the wastewater treatment system;

(j) A copy of the permit for drainage and erosion control measures if required by RSA 485-A:17 and Env-Wq 1500, or a copy of the application for the permit if a permit has not yet been issued;

(k) A copy of the permit for the septage or sludge management activities if required by Env-Wq 800 or Env-Wq 1600, or a copy of the application for the permit if a permit has not yet been issued;

(l) For bermed or dammed structures for which a permit is required under RSA 482, a copy of the permit or status of the application;

(m) If a certified wastewater treatment plant operator is required by RSA 485-A, a copy of the certification or status of the application; and

(n) For a new facility or a facility that is being expanded, the following information:

(1) An estimate of the construction time and the projected start-up date;

(2) A hydrogeological study that includes the following:
a. A description of the geology of the site and ambient groundwater quality;

b. Estimates of hydraulic gradients and flow directions;

c. Estimates of hydraulic conductivity and seepage velocity;

d. A description of soil types and thickness;

e. Estimates of soil infiltration rates and intended loading rates;

f. Supporting documentation and calculations to support the estimates; and

g. Any other information that is necessary to delineate a groundwater discharge zone, taking into consideration the geologic characteristics of the site, the estimated groundwater flow patterns, and regulated contaminant transport and degradation mechanism.

(3) A site-specific soil map of the proposed groundwater discharge zone prepared in accordance with the Site-Specific Soil Mapping Standards for New Hampshire and Vermont, Society of Soil Scientists of Northern New England Version No. 2, 1999, SSNNE Special Publication No. 3, available as noted in Appendix B;

(4) A vulnerability assessment for potential impacts from natural hazards, if necessary based on the proposed facility's location relative to surrounding topographic and hydrologic features that pose a reasonable threat to the facility's structural integrity or functionality, or both; and

(5) Written verification from the department of resources and economic development that no threatened or endangered species exists on the site.

(See Revision Note at part heading for Env-Wq 402) #8955, eff 7-26-07

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