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NW2.4 PROTECT SURFACE

NW2.4 PROTECT SURFACE AND GROUNDWATER QUALITY INTENT: Preserve water resources by incorporating measures to prevent pollutants from contaminating surface and groundwater and monitor impacts during construction and operations. METRIC: Designs, plans, and programs instituted to prevent and monitor surface and groundwater contamination during construction and operations. LEVELS OF ACHIEVEMENT IMPROVED ENHANCED SUPERIOR CONSERVING RESTORATIVE IMPROVED ENHANCED SUPERIOR CONSERVING RESTORATIVE (2) New Pathway Avoidance (4) Community Support (9) Risk Reduction (14) Public Reporting (18) Water Quality Improvement (2) New Pathway Avoidance (4) Community Support (9) Risk Reduction (14) Public Reporting (18) Water Quality Improvement (A) An environmental risk assessment has determined potential impacts to surface or groundwater quality, including temperature during construction and (A) An environmental risk (A) An environmental risk (A) An environmental risk (A) An environmental risk (A) An environmental risk assessment operations. has determined assessment has determined assessment has determined assessment has determined assessment has determined potential impacts to surface or potential impacts to surface or potential impacts to surface or potential impacts to surface or potential impacts to surface or (B) The project does not create new direct pathways for surface and/or groundwater contamination such as: groundwater quality, including groundwater quality, including groundwater quality, including groundwater quality, including groundwater quality, including temperature • Direct during runoff construction into karst terrain; temperature during construction temperature during construction temperature during construction temperature during construction and operations. • Untreated industrial or chemical and operations. discharge to unlined industrial and operations. ponds or lakes; and operations. and operations. (B) The • Reinjection project does not water create wells unless (B) The water project is treated avoids creating to secondary (B) levels, The project or local avoids regulations, creating whichever (B) The is project more avoids stringent; creating or (B) The project avoids creating new direct • Chemical, pathways byproduct, for surface or fracking new direct water, pathways injection. for new direct pathways for new direct pathways for new direct pathways for and/or groundwater contamination groundwater contamination by groundwater contamination by groundwater contamination by groundwater contamination by such The project as: includes spill and leak means diversion listed systems, in the Improved spill prevention level. means plans, listed and in the cleanup. Improved level. means listed in the Improved level. means listed in the Improved level. • Direct runoff into karst terrain; The (C) The project project includes team spill informs and leak community The project stakeholders includes spill of and any leak potential The project risk and/or includes impacts spill and to leak water quality The project and includes demonstrates spill and leak • Untreated industrial or diversion systems, spill prevention diversion systems, spill prevention diversion systems, spill prevention diversion systems, spill prevention chemical discharge to unlined plans, stakeholder and cleanup. support for the project plans, plans and involving cleanup. surface and/or groundwater. plans, and cleanup. plans, and cleanup. industrial ponds or lakes; (C) The project team informs (C) (D) The Based project on team impacts informs (C) (D) The Based project on team the types informs of impacts (C) identified The project in team criterion informs A, the • Reinjection water wells unless community stakeholders of any community identified in stakeholders criterion A, of the any community project is stakeholders designed or of includes any components community stakeholders that reduce of the any risk water is treated to secondary potential risk and/or impacts to potential project reduces risk and/or the impacts risk of to potential of surface risk and/or impacts groundwater to quality potential degradation. risk and/or impacts This should to levels, or local regulations, water quality and demonstrates water quality and demonstrates water quality and demonstrates water quality and demonstrates stakeholder support for the project stakeholder surface and/or support groundwater for the project stakeholder include water support temperature. for the project stakeholder support for the project whichever is more stringent; or plans involving surface and/or plans quality involving degradation. surface and/or This plans involving surface and/or plans involving surface and/or • Chemical, byproduct, or (E) Adequate measures enable responsive surface and/or groundwater. groundwater. should include water groundwater. groundwater. fracking water, injection. groundwater quality monitoring and reporting mechanisms to (D) temperature. Based on impacts identified in (D) Based on the types of impacts (D) Based on the types of impacts The project includes spill and leak criterion A, the project reduces the identified provide in the criterion public A, with the water project quality identified data in criterion A, the project diversion systems, spill prevention risk of surface and/or groundwater is designed or includes is (F) designed The project or includes improves plans, and cleanup. quality degradation. This should components that reduce the risk of components that reduce the risk of include water temperature. surface and/or groundwater surface and/or groundwater quality surface and/or groundwater quality degradation. This should include degradation. quality beyond This existing should include water temperature. (E) Adequate measures enable responsive surface and/or groundwater quality monitoring and reporting mechanisms to provide the public with water quality data. water conditions. temperature. (E) Adequate measures enable responsive surface and/or groundwater quality monitoring and reporting mechanisms to provide the public with water quality data. (F) The project improves surface and/or groundwater quality. Beyond existing conditions. DESCRIPTION The goal of this credit is to preserve water resources by incorporating measures to prevent pollutants from contaminating surface and groundwater and monitor impacts during construction and operations. Groundwater is a widely used source of drinking water. Protecting wellheads and groundwater recharge areas reduces the chances of groundwater contamination and protects natural water purification processes. In addition, aquatic ecosystems depend on a particular set of water conditions. Changes to any of these factors can adversely affect aquatic life and groundwater quality. Aquatic ecosystems are threatened by changes in pH, decreases in water clarity, and increases in temperature, dissolved solids, coliform bacteria, toxic substances, and nutrients (especially phosphorus and nitrogen). Leaks, spills, and other sources of contamination have serious environmental, social, and economic costs with prevention almost always being more economical than clean up. Contamination takes many forms but can kill flora and fauna, destroy habitats, and cause illness or premature death in humans. Concerns regarding equipment and facilities containing potentially polluting substances include fuel and chemical storage, pipelines, piles of raw materials, and process areas. At the construction stage, potential sources of groundwater and surface water contamination include spills and leaks from tanks, pipes, and construction vehicles; leaching of pollutants from raw or waste materials; and releases of pollutants from the demolition of previously completed projects. © 2017 ISI, Inc. 122

EVALUATION CRITERIA AND AND DOCUMENTATION GUIDANCE GUIDANCE A. Has project team determined the potential for surface and/or groundwater contamination during construction and operations? A. Has project team determined the potential for surface and/or groundwater contamination during construction and operations? 1. Documentation of hydrologic and/or hydrogeologic delineation studies, taking into consideration the complexity of the aquifers. Note that local 1. Documentation authorities may of already hydrologic have and/or done delineation. hydrogeologic delineation studies, taking into consideration the complexity of the aquifers. Note that local authorities may already have done delineation. 2. Documentation explaining potential impacts to surface and/or groundwater quality, their risk, and consequences. Water temperature should be 2. Documentation included as a potential explaining impact. potential impacts to surface and/or groundwater quality, their risk, and consequences. Water temperature should be included as potential impact. B. Does the project include spill and leak prevention and response plans and avoid creating new pathways for contamination during B. construction Does the project and operations? include spill and leak prevention and response plans and avoid creating new pathways for contamination during construction and operations? 1. Documentation that the project does not involve any of the following: 1. Documentation a. No direct runoff that into the project karst terrain does not involve any of the following: b. a. No untreated direct runoff industrial into karst or chemical terrain discharge to unlined industrial ponds or lakes c. b. No reinjection untreated industrial water wells or unless chemical water discharge treated to unlined to secondary industrial levels ponds or lakes d. c. No chemical reinjection or water fracking wells water unless injection water is treated to secondary levels 2. Documentation d. No chemical demonstrating or fracking water spill injection and leak prevention and response plans are in place. 2. 3. Documentation demonstrating showing the placement spill and leak of materials prevention storage and response piles and handling plans are of in potentially place. polluting runoff (e.g. plans and drawings). 3. C. Has Documentation the project showing team informed the placement community of materials stakeholders storage piles of potential and handling water of quality potentially impacts polluting and runoff received (e.g. stakeholder plans and drawings). support for plans to address surface and/or groundwater issues during construction and operations? C. Has the project team informed community stakeholders of potential water quality impacts and received stakeholder support for plans to 1. address Documentation surface of and/or stakeholder groundwater engagement issues demonstrating during construction that potential and water operations? quality impacts were clearly communicated including their severity and probability of occurring. 1. 2. Documentation Documentation demonstrating of stakeholder stakeholder engagement support demonstrating of the project that potential team’s plans water to quality address impacts surface were and/or clearly groundwater communicated impacts. including their severity and probability of occurring. 2. D. To Documentation what extent does demonstrating the project stakeholder reduce the support risk of surface the project and/or team’s groundwater plans to address quality surface degradation and/or groundwater during construction impacts. and operations? 1. Documentation of project planning, design, or construction decisions intended to reduce the risk of surface and/or groundwater quality degradation. D. To These what actions extent may does include the project but are not reduce limited the to: risk of surface and/or groundwater quality degradation during construction and operations? a. Siting the project to avoid important groundwater recharge areas (e.g. Karst topography). 1. Documentation b. Locating equipment of project and planning, facilities design, containing or construction potentially decisions polluting substances intended to away reduce from the sensitive risk of surface environments. and/or groundwater quality degradation. c. Installing runoff These interceptors actions may and include drainage but channels are not limited designed to: to accommodate pollutants in stormwater runoff or ice melt, potential spills, and leakage. d. a. Installing Siting the natural project systems to avoid to important capture or groundwater prevent potentially recharge polluting areas (e.g. substances Karst topography). from reaching surface and/or groundwater sources. e. b. Significantly Locating equipment reducing and or eliminating facilities containing potentially potentially polluting polluting substances substances from operations. away from sensitive environments. f. c. Recycling Installing runoff potentially interceptors polluting and substances, drainage channels including keeping designed them to accommodate within the operation pollutants or sending stormwater them runoff site for ice use melt, in other potential applications. spills, and leakage. 2. For projects situated in areas where groundwater is used as a source or drinking water, documentation of wellhead and groundwater recharge area d. Installing protection natural plans systems and other to requirements capture or prevent including potentially protection polluting areas. substances from reaching surface and/or groundwater sources. e. Significantly reducing or eliminating potentially polluting substances from operations. E. Have adequate and responsive surface and/or groundwater quality monitoring and reporting systems been incorporated into the project? f. Recycling potentially polluting substances, including keeping them within the operation or sending them off site for use in other applications. 1. Documentation of surface and/or groundwater quality monitoring programs. Documentation that discharges to receiving waters and/or the receiving 2. For projects situated in areas where groundwater is used as a source or drinking water, documentation of wellhead and groundwater recharge waters themselves are monitored to verify pollutant loading, biological impact, water temperature, and the impact on receiving water flow. area protection plans and other requirements including protection areas. 2. Documentation demonstrating that the frequency and level of monitoring is sufficient to address the potential water quality impacts provided in criterion A. E. Have adequate and responsive surface and/or groundwater quality monitoring and reporting systems been incorporated into the F. Does the project improve surface and/or groundwater quality? project? 1. Documentation of water quality baseline prior to the project’s development. 1. Documentation of surface and/or groundwater quality monitoring programs. Documentation that discharges to receiving waters and/or the 2. receiving Documentation waters demonstrating themselves are that monitored the project to verify improves pollutant overall loading, water quality biological onsite, impact, or in water the watershed, temperature, compared and the to impact the pre-existing on receiving baseline. water flow. Examples of improving water quality may include but are not limited to: 2. Documentation a. Implementing demonstrating land use controls. that the frequency and level of monitoring is sufficient to address the potential water quality impacts provided in criterion b. Restoring A. degraded natural systems. c. Installing systems to clean or remove contaminants from surface and/or groundwater. d. Cleaning up contaminated areas. e. Installing systems to prevent existing (non project related) contamination from entering receiving waters or altering receiving water flow. © 2017 ISI, Inc. 123

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