N.H. Admin. Code § Env-Dw 302.29

Current through Register No. 50, December 12, 2024

Section Env-Dw 302.29 - Final Report: Contents

The applicant shall provide the following pursuant to Env-Dw 302.27(c)(2):

(a) If the applicant did not have legal control of the sanitary protective area at the time the preliminary report was submitted, documentation of legal control of the sanitary protective area;

(b) Documentation to support:

(1) The refined conceptual hydrogeologic model required by Env-Dw 302.21;

(2) The refined wellhead protection area required by Env-Dw 302.22, including documentation of the refinement method used; and

(3) The updated contamination source inventory and water resource and use inventory required by Env-Dw 302.23;

(c) A description of the contamination control program and supporting evaluations and documentation;

(d) A description of the wellhead protection program, including:

(1) The name, title, mailing address, daytime telephone number including area code, and email address, if any, of the individual responsible for implementing the wellhead protection program;

(2) A list of the name and address of each intended recipient of the mailing required by Env-Dw 302.25;

(3) A statement as to the intent of the CWS to initiate a best management practices inspection and survey program for potential contaminant sources that are within the wellhead protection area identified in accordance with Env-Dw 302.22 and that are subject to Env-Wq 401, or, as an alternative, identification of the anticipated date when the wellhead protection area is to be reclassified to GAA per RSA 485-C:9, II; and

(4) Identification of the process and schedule for adoption of any local policies, procedures, or regulatory requirements necessary for implementing best management practices for prevention of groundwater contamination in the wellhead protection area;

(e) A description of the pumping test including:

(1) All of the data collected;

(2) A description of how each pumping test requirement in the approved preliminary report was met;

(3) If an alternate pumping test method was approved in the preliminary report, all data and analyses as proposed in the preliminary report and the justification for the alternative method required by Env-Dw 302.14(j)(4); and

(4) The following information as part of the pumping test data analyses and presentation:

a. A table of the time elapsed from the initiation of the pumping test that includes:

1. The pumping rate;

2. The recorded water level at each monitoring location;

3. Groundwater levels corrected for other hydraulic influences; and

4. Rainfall data;

b. A daily log of site activity and weather conditions;

c. Plots of recorded and corrected water level data versus time, as log-log and semi-logarithmic graphs, with time plotted on the logarithmic axis, in each of the following formats:

1. Drawdown versus time, with time expressed in minutes of elapsed time and plotted on the logarithmic axis;

2. Extrapolation of drawdown in each test well indicated by a straight line drawn through the water level data on a semi logarithmic plot with a slope based on data points from the end of the pumping test and extended to 180 days, or 259,200 minutes; and

3. Recovery versus time, with time expressed in minutes of elapsed time and plotted on the logarithmic axis;

d. Semi-logarithmic plots of drawdown at the end of the pumping period versus distance from the test wells plotted with distance on the logarithmic axis, specifying well names with all data points; and

e. For overburden wells:

1. Estimates of transmissivity and storage coefficient based on time-drawdown and distance-drawdown plots; and

2. An explanation of the estimating method that is based on a comparison of the assumptions underlying the method and aquifer characteristics observed during the pumping test;

(f) A description of the water quality sampling program, with specific note of any deviations from the program as approved in the preliminary report, and copies of all laboratory results;

(g) A proposed permitted production volume and a description of the means by which it was established in accordance with Env-Dw 302.20;

(h) An estimate of the effect pumping the permitted production volume from each well will have on:

(1) Water levels in private and public wells within 1,000 feet of each test well;

(2) Water levels in nearby surface waters and wetlands;

(3) Existing groundwater contamination plumes; and

(4) Saltwater intrusion into the freshwater aquifer;

(i) A vulnerability assessment of potential impacts to the well from natural hazards, if necessary based on the well'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

(j) A copy of the well completion report prepared in accordance with We 800 or successor rules.

N.H. Admin. Code § Env-Dw 302.29

(See Revision Note at part heading for Env-Dw 302) #9008, eff 10-19-07

Amended by, Volume XXXVI Number 14, Filed April 7, 2016, Proposed by #11061, Effective 4/1/2016, Expires 4/1/2026.