ATTACHMENT_5_CAP_Plan_Criteria_Checklist_DWMP_(130).pdf

United States Department of Agriculture Natural Resources Conservation Service

Michigan Drainage Water Management Plan (DWMP) Checklist – Code 130 January 2017

Date Received: Control No:

Conservation Activity Plan – Drainage Water Management Plan Conservation Activity Code (130)

Field Office Checklist and TSP Certification Plan Review

Purpose: This checklist provides guidance for NRCS and Technical Service Providers as a review of the content that is to be included in a Drainage Water Management Plan (DWMP). Please refer to the CAP130 DWMP Criteria for specific elements to be addressed.

Drainage Water Management Plan

State/County: Date Plan Submitted:

Producer/Owner: Technical Service Provider:

Definition: A Drainage Water Management Plan (DWMP) is a plan to control soil water table elevations and the timing of water discharges from subsurface or surface agricultural drainage systems for the following purposes: improve water quality, improve the soil environment for vegetative growth, reduce the rate of oxidation of organic soils, prevent wind erosion.

A General DWMP Criteria

A DWMP must be developed by a certified Technical Service Provider (TSP).

B Technical Criteria for DWMP

1 Plan development, farm and field information A. Name of producer B. Location of field (County/Township, latitude and longitude) C. Farm number D. Field and/or Tract number(s) E. Crops grown, and planned rotation by field F. Name and address of contractor or consultant developing plan G. Date of plan development H. Total acres of the DWMP. The DWMP includes all adjacent acres that are drained by the same system and under the same land ownership.

2. Management and Conservation Objectives of the Landowner

A. Narrative statement about the proposed management of the field including related practices along with drainage water management. Include a statement about the objectives of the producer related to at least one of the purposes listed in the CAP 130 DWMP criteria section 1 – Definition of a Drainage Water Management Plan

ATTACHMENT 5 Solicitation No. AG-1A23-S-17-0027 Requirement for a Technical Service Prover (TSP) to assist in the Development of DVM CAPs for the State of Michigan

Michigan Drainage Water Management Plan (DWMP) Checklist – Code 130 January 2017

3. Maps: The following maps are included in the DWMP

A. A soils map that includes field boundaries, with the predominant soils listed and area quantified;

B. A drainage system map that includes the materials, diameters, dimensions and locations of mains and laterals. Label flowlines of any tile line leaving the field.

C. A delineation of the area within the field drained by the system;

D. Wetland delineation map. If no wetland, a statement to that effect in lieu of a map.

E. A Topographic Map that shows elevation contours on an increment appropriate for the topography, but no greater than 2 feet. To determine the appropriate maximum contour interval, ensure that the contours are no farther than 100 feet apart in the plan view.

Maximum contour interval will range from 6 inches (0.5 feet) for land slopes 0.75% and flatter, to 2 feet for land slopes 2.0% and steeper. The drainage system map and topographic map need to be the same scale, and the scale must be at least 1:3,600 (1 inch = 300 feet) or closer. The topographic map should include, at a minimum, all of the drained area as defined above. Include at least one point identified at the site (e.g., Benchmark) with a known elevation and coordinates to facilitate final design of the DWM system at a later date;

F. An overlay of the above maps with location, size, control elevation, and impacted area identified for each planned control structure.

4. Management Instructions / Operation and Maintenance

The management instructions should follow the Operation and Maintenance section of Conservation Practice Standard (CPS) Drainage Water Management 554, which states that to reduce soil oxidation and to minimize wind erosion and nitrate transport, the outlet elevation at the water control structure shall be set to allow the water table to rise to within 6 inches or less of the ground surface at the designated control elevation during fallow periods and when practical. The DWMP also must include the following instructions:

A. The time after harvest to replace boards and the designated outlet elevation during the winter months (or fallow season);

B. The time in the spring to release water (this will vary depending on the crop: e.g. March for corn and April for soybeans), and

C. Guidelines for the control of drainage and the management of the water table during the growing season (see CPS 554).

5. Supporting Documentation

A. A summary sheet that lists the pipe diameter and height (depth to drain) or dimensions of each water control structure and the area impacted by each structure.

B. Sizing and quantity information for any supporting practices in the DWMP.

6. Signature Page

A signature page, with names, dates and signatures of all contract holders and the person who prepared the plan. The signature page also contains a space for approval by NRCS.

Michigan Drainage Water Management Plan (DWMP) Checklist – Code 130 January 2017

Yes No Checklist Approval

I have reviewed this Drainage Water Management Plan (DWMP) and it meets all the criteria of the Conservation Activity Plan 130 in accordance with the NRCS-Michigan Field Office Technical Guide.

NRCS Representative Name and Title (print or type):

NRCS Representative Signature: Date:

Notes: If the plan is inadequate, include a description of all deficiencies, including missing items that need to be added, and other corrective actions as needed. Use additional page(s) as needed.

Certified TSPs: Submit the completed Drainage Water Mgt Plan to the local NRCS Field Office servicing the client.

NRCS Reviewers: Submit a copy of the completed checklist to the State TSP Coordinator, Sally Van Lieu (sally.vanlieu@mi.usda.gov) & maintain a copy in the case file for contract documentation. If the local conservationist does not have the appropriate engineering JAA, please forward the plan through your area engineer for review.

http://www.mi.nrcs.usda.gov/contact/Field%20Offices.html mailto:betsy.dierberger@mi.usda.gov