Senate committee substitute makes the following changes to the 1st edition.

Amends proposed new GS 87-97(b1)(4) by adding that a certified well contractor is not required to have a permit for the connection or disconnection of the electrical wiring to the pump or pressure switch of a well system to the electrical system that serves the well system. Amends the definition of the term well system to also include the pressure switch.

Amends GS 143-138(b17)(2) by deleting the existing language and instead provides that among the conditions that must be met in order to not need a permit for the electrical and plumbing activities associated with the installation, construction, maintenance, or repair of a private drinking water well is the condition that the scope of the work includes only the well system and the connection or disconnection of the well system to either the plumbing served by the well system or the electrical service that serves the well system. 

Deletes the provisions in Section 2.3, concerning the regulation of stormwater control system design, which amended GS 143-214.7B. Instead, requires the Environmental Management Commission (EMC) and the Department of Environmental Quality (DEQ) to implement 15A NCAC 02H .0506 (Review of Applications) as follows. Prohibits the Director of the Division of Water Resources from requiring the use of on-site stormwater control measures to protect downstream water quality standards, except as required by state or federal law. Requires the EMC to adopt rules to amend 15A NCAC 02H .0506, consistent with these provisions. 

Deletes the provisions of Section 2.4, concerning stream mitigation requirements and replaces it with the following. Amends GS 143-214.7C to prohibit DEQ, except as required by federal law, from (1) requiring mitigation for losses of 300 linear feet or less of stream bed or (2) requiring mitigation for 300 linear feet of the losses for losses of more than 300 linear feet of stream bed. Requires the EMC to amend its rules so that they are consistent with these provisions. Requires the cochairs of the Environmental Review Commission to examine the mitigation thresholds for losses of stream bed under the Regional Conditions adopted by the Norfolk, Charleston, and Savannah Districts of the US Army Corps of Engineers, and submit written comments to the US Army Cops of Engineers Headquarters and the North Carolina congressional delegation to encourage the Wilmington District to adopt Regional Conditions on the thresholds for losses of stream bed that are consistent with those adopted by those districts.

Instead of repealing Section 4(c) of SL 2001-355, repeals the entire Section 4, which contains provisions related to best management practice for pasture-based production or management of livestock.

Moves the provision creating the North Carolina Sentinel Landscapes Committee from Section 3.24 to Section 2.12 and makes the following changes. Amends the statement of intent to include directing the North Carolina Sentinel Landscape Committee (Committee) to coordinate the overlapping priority areas in the vicinity of and where testing and training occur near or adjacent to major military installations, or other areas of strategic benefit to national defense (previously did not include other areas of strategic benefit to national defense). Makes conforming changes throughout to account for the inclusion of other areas of strategic benefit to national defense. Amends the Committee's work to include protecting working lands in the vicinity of and where testing and training occur near or adjacent to major military installations or other areas of strategic benefit to national defense (was, protect working lands in the vicinity of and where testing and training occur on major military installations). Makes conforming changes. Amends the Committee chairs so that now the Commissioner of Agriculture or the Commissioner's designee serves as chair for an initial two-year term, with one of the five listed Committee members serving as chair thereafter. Adds that the chair may appoint members representing other State agencies, local government officials, and nongovernmental organizations experienced in land management activities with sentinel lands.

Amends Section 3.12 to push back the due date of the combined reports to January 1, 2019 (was, 2018).