SWPPP_Nisqually_to_Paradise_Road_Phase_II _WA_PRA-MORA_14(7).pdf

TAB 1: SWPPP/ESCP Narrative

TAB 2: NPDES Permit (Construction General Permit or Corresponding State Permit)

TAB 3: NOi, EPA/State Acknowledgement, Other Applicable EPA/State Correspondence

TAB 4: Delegation of Authority

TAB 5: Maps

TAB 6: Erosion/Sediment Control Plan Sheets (plan set and BMP typical details)

TAB 7: Permanent Stabilization and Revegetation Plan (plan sets and details)

TAB 8: SWPPP Amendment Log

TAB 9: Erosion/Sediment Control Inspection Reports and Requirements

TAB 10: Corrective Action Log

TAB 11: Water Quality Monitoring, Reporting Requirements, and Reports

TAB 12: Training Log

TAB 13: Waste and/or Borrow Site Information

TAB 14: Grading and Stabilization Log

TAB 15: Hazardous Spill Plan

TAB 16: Other Applicable Permits(§ 404, § 401, Oregon Remove-Fill Permit)

TAB 17: NPDES Quality Assurance Checklist

TAB 18: NPDES Notice of Termination (NOT)

TAB 7: Permanent Stabilization and Revegetation Plan

Inspection Requirements for NPDES Compliance

EPA Construction General Permit Part 4 inspection requirements for NPDES compliance:

Inspection Frequency: You must conduct inspections in accordance with one of the two schedules listed below.

You must specify in your SWPPP which schedule you will be following.

I. At least once every 7 calendar days, OR

2. At least once every 14 calendar days and within 24 hours of the end of a storm event of 0 .5 inches or greater. (If this option is chosen, a rain gauge is required to be on-site. The SWPPP should also include a daily rainfall log.)

Case-by-Case Reductions in Inspection Frequency: You may reduce your inspection frequency to at least once every month if:

1. The entire site is temporarily stabilized,

2. Runoff is unlikely due to winter conditions (e.g., site is covered with snow, ice, or the ground is frozen), or

3. Construction is occurring during seasonal arid periods in arid areas an:d semi-arid areas.

Inspection Waiver for Frozen Conditions: A waiver of the inspection requirements is available until one month before thawing conditions are expected to result in a discharge if all of the following requirements are met:

· 1. The project is located in an area where frozen conditions are anticipated to continue for extended periods of time (i.e., more than one month);

2. Land disturbance activities have been suspended; and

3. The beginning and ending dates of the waiver period are documented in the SWPPP.

Qualified Personnel: Inspections must be .conducted by qualified personnel (provided by the operator or cooperatively by multiple operators). "Qualified personnel" means a person knowledgeable in the principles and practice of erosion and sediment controls who possesses the skills to assess conditions at the construction site that could impact stormwater quality and to assess the effectiveness of any sediment and erosion control measures selected to control the quality of stormwater discharges from the construction activity.

Scope of Inspections: Inspections must include all areas of the site disturbed by construction activity and areas used for storage of materials that are exposed to precipitation. Inspectors must look for evidence of, or the potential for, pollutants entering the stormwater conveyance system. Sedimentation and erosion control measures must be observed to ensure proper operation. Discharge locations must be inspected to ascertain whether erosion control measures are effective in preventing significant impacts to waters of the United States, where accessible. Where discharge locations are inaccessible, nearby downstream locations must be inspected to the extent that such inspections are practicable. Locations where vehicles enter or exit the site must be inspected for evidence of off-site sediment tracking. ·

All reports required by this permit, including the SWPPP, S.WPPP amendments, and inspection reports must be signed by a person described in Appendix G, Subsection I I .A (below) or by a duly authorized representative of that person.

1. For a corporation: By a responsible corporate officer. For the purpose of this Part, a responsible corporate officer means: (i) a president, secretary, treasurer, or vice-president of the corporation in charge of a principal business function, or any other person who performs similar policy- or decision-making functions for the corporation, or (ii) the manager of one or more manufacturing, production, or operating facilities, provided, the manager is authorized to make management decisions which govern the operation of the regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and directing other comprehensive measures to assure long term environmental compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for permit application requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures.

2. For a partnership or sole proprietorship: By a general partner or the proprietor, respectively; or

3. For a municipality, state, federal, or other public agency: By either a principal executivt:: officer or ranking elected official. For purposes of this Part, a principal executive officer of a federal agency includes (i) the chief executive officer of the agency, or (ii) a senior executive officer having responsibility for the overall operations of a principal geographic unit of the agency (e.g., Regional Administrator of EPA).

A person is a duly authorized representative only if:

The authorization is made in writing by a person described in Appendix G, Subsection 11.A;

The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or activity such as the position of plant manager, operator of a well or a well field, superintendent, position of equivalent responsibility, or an individual or position having overall responsibility for environmental matters for the company. (A duly authorized representative may thus be either a named individual or any individual occupying a named position); and ·

The signed and dated written authorization is included in the SWPPP. A copy must be submitted to EPA, if requested.

TAB 11:

Water Quality Monitoring, Reporting Requirements, and Reports

Samples and measurements taken for the purpose of monitoring will be representative of the monitored activity. Records of all monitoring information will be retained, including all calibration and maintenance records and all original strip chart recordings for continuous monitoring instrumentation, copies of all reports required by this permit, and records of all data used to complete the application for this permit, for a period of at least 3 years from the date of the sample, measurement, report or application.

Records of monitoring information will include:

1. The date, exact place, and time of sampling or measurements;

2. The individual(s) who performed the sampling or measurements;

3. The date(s) analyses were performed

4. The individual(s) who performed the analyses;

5. The analytical techniques or methods used; and

6. The results of such analyses.

TAB 11: Water Quality.Monitoring, Reporting Requirements, and Reports

TAB 15: Hazardous Spill Plan

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TAB 15: Hazardous Spiii Plan

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Nisqually - Paradise Road Rehabilitation WA PRA MORA 14(6) and 14(7) Categorical Exclusion o If possible, equipment or vehicles will be refueled at least 150 feet away from streams or identlfled wetlands in a location and manne1 that will preclude erosion Into or contammauon ol streams or wetlands. For refueling at designated refueling areas within lSO feet of streams and wetlands, appropriate spill containment measures will be implemented to protect water resources o A supply ofacceprnhleAhsotbent materials will be k<>pt at the job site in tl1c event of sp-ills. Acceptable absorbent materials are those that are manufactured specifically for the containment and cleanup ofhaiardous materials Any spills w!I!

be cleaned up immediately u In the evem of a splll, the CO will be notified immediately BMPs for drainage and sediment control, as described In the FHWA and N PS Stormwater Pollution Prevention Plan, will be implemented to pi event or r-educe nonpolnt source pollution and minimize soil loss and sedimentation In drainage;areos

Vegetable oil-based hydraulic fluids or alternative biodegradable oil will be used in all heavy equipment to minimize potential impacts to water quality from sp!lls

Fresh concrete. concrete byproducts, or other chemical contaminants will not be allowed to enter water bodies Structures containing concrete will be sufficiently cured to prevent leaching prior to contact with the water body

Treated wood used for bridges or other structures will meet or exceed the standards established in tile most current edltiOn of"flest management Practices for the Use of Treated Wood in Aquatic Environments• developed by the Western Wood Preservers Institute, Additional resource protection measures for drainage Improvements are Included under Fish, Wildlife, and Special Status Species

The fo!10>wing measures will be used for drainage improvements at New Tahoma Creek and Kautz Creek:

o Minimal placement of fill on floodplains ls anticipated; except as needed to protect culvert inlets and outlets at New Tahoma Creek and t<> armor the road side slopes at Kautz Creek Free natural drainage and natural contours will be preserved to the extent practicable when designing and completing improvements, Previously vegetated areas that lll1' rilsmrbed will bi> revogetated when construction is complete, o Project operations must cease under high flow conditions that inundate the project area, except for efforts to avoid or minimize r-esource damage.

o Flood hazard mitigation wHI be provided by Incorporating improved flood conveyance capacity for protecting life and minimizing damage to the road and natural resources o Mitigation of flood hazards to road""'"~ will be accomplished by Improved drainage and closure or the road during periods of very high flows ifflooding is antlci ated.

Excavated material that Is suitable for growth of native vegetation as determined by the park will be salvaged and stockpiled according to park stipulations before any

. additional construction work takes place All conserved topsoil In the sol! isolation zone from which It originated w!ll be used before using excavated material Topsoil refers to the uppermost soil horizon, usual\y 6 to l8 lncl1es deep, which includes durl and other materials capable of supporting vegetation

Im aggregate-topsoil course wlll be placed on rood shoulders to match pavement stn1ctu1 e and promote the establishment of native plant vegetation. Tile mixture will consist of 50% aggregate and 50% local conserved topsoll

Topsoil will not be mixed with subsoil

Ali impacted areas will be hydroseedecl and mulched to establish native planrs, control cro$lon, and limit growth of l11vaslve plant species The hydroseeding method will be a two-ste rocess tllat a lies seed in a slur of water, seed and tackifier on a

Park Geologist and Park Hydrologist

Park Geologist and Park Hydrologist

Nisqually ~Paradise Road Rehabilitation

Categorical Exclusion prepared seedbed ns the first step The second step will apply wood fiber mulch and tacldfier in a slurry of water over the first application Tackiflers used in the process will be derived from plant mal~ri•ls tu have no residua! effects on t11esoi1,seed or germinating plants The mulch and tacltifier wm serve to hold sediment in place until growing pla11ts are able to hold soils in place Hydroseedlng should be done attiie end of the construction season under conditions s11ecified in the contr ~rt nocuments.

If erosion cont! ol on dii;turbed areas at the end of the first construction season is needed, a plant-based tackifier and light mulch will be applied. Hydroseedlng. the pmcess described above, will then be applied at the end of the project after final paving.

Use of llMPs in the proiect area fo1·drainage area protection will include all 01 some of the following actions, depending on site·specific requirements:

o Disturbed areas will be kept ass111all as practical to minimize eKposed soil and the potential fo1 erosion o Erosion· and sediment-control devices w!ll be installed and vegetation cleared pr inr to <alvaging topsoil for &tor age.

o Excavated material will be covered with water·repellent, b1eathable material

<luring storage to prevent erosion/sedimentation o Waste and excess excavated materials will be located outside of the ordinary high water mar It of streams to avoid sedimentation.

o Silt lences, sediment logs, temporary earthen bet ms, temporary water bars.

sediment traps, stone check dams, or other equivalent measures will be installed firosion-control measures will be monitored to onourc they are properly installetl and are fu nccionlng effectively o Sediment traps, erosion checks, and/or filters will be constructed above or below all cuivert drains (ii such drains will be required) and in all other ditches befo1e the runoff leaves the project construction limits o Certified weed-free coir logs will be installed for filter Ing sediment from runoff and reducing the velocity of sheet flow. Logs will be installed according to plans and as directed by FHWA/WJlUf[I and the park to address erosion concerns. Logs will be placed in drainages that pass through work areas to limit erosion of exposed soils Slit fencing will be Installed around the perimetc1· of pullouts, which will be used for the storage of erodible materials Silt fence will be installed according to plans;

fencing will cons1sc ot one continuous piece of semipermeable fabric (or steps will be taken to join sections so there wlll be no gaps); fence will remain in an upright position after Installation; materials and equipment will not be leaned against fencing to avoid fence collapsl!; ~ntl fencing will be repaired to ensure on effective barrier within 24 hours of deficiency notification o Sediment logs will be placed around the perimeter, ii mater Jals will be stm ed on the road · o Straw 01 hdy bules will not be used as filter barrie1·s When working in •wet" ditch lines, weed-free coir logs will be used at either end of the work area across the ditch line to filter siltation and will be staked firmly in place. If water Is running in t the downhill f the wor-l< area ool

No vegetation will be disturbed outside of the construction limits unless prior approval Is obtainf!tl from the park Any unauthorized disturbance will result in the contractor paying for the restoration of that area using the methods set forth in the conn act documents

Oltches that rnrrently support wetlal!d plant sped•~ wl!l h" revegetated with native wetland species following ditch deaning Parking of equlpll)ent and private vehicles will be restricted to hardened surfaces, such as pullouts, concrete ditch lines, and dosed lanes of the road to limit disturbance of roadside vegetation. AU pttllouts to be used as parking will be fenced'" uuml the perimeter with temporary construction fencing No parking in wet ditches or adjacent to sttea ms will be allowed

The park will review and approve constnicti on limits witl1in which clearing and en•hbine will occur as id<>ntlfied In the project plans and contract do,umeuts and as staked on-site prior to construction commencing

Park Botanist

Nisqually- Paradise Road Rehabilitation

Categorical Exclusion

Vegetation and root zones designated to remain will be fenced off fer protecticm Vegetation will be removed in a manner that wlll not injure the vegetation around it or compact or· gouge the topsoil

Wbcnevilr possible designated trees, stumps, and snilgs to be cleared wlll be salvaged to be used for erosion control or natural litter on finished slopes. All salvaged woody debris wtU be srocl{p!led at the closest storage slte within the same soil Isolation zone by Joly 1 or by a par k·approved deadllne to avoid contamination from wind borne weed seed The following measures will be imµle111e11ted tu protect trnes:

o Any tree of concern to contractor will be inspected by park hazard tree expert and must be deemed likely 10 fail before tree is removed o F.r<'.<lvations ln the road for deep patches and other structural work naar·!arge trees will be limited to a depth ofless than 1 Z Inches or the bottom of the existing aspl1alt, whichever ls greater, within a lO·foot radius of the tree- stem or the section of excnvatlon will be shortened to avoid excavation within 10 feet of the tree stem unless shown otherwise on tlle plan or otherwise directed by the co.

o Tree roots will be pruned with a saw making a clean vertical cut, removing the smallest portion of the root or root system possible th.at will still allow for excavation Pruning equipment will he stnrillwd betw<?~n each tree o Excavated tree roots wlll be kept n1olst until covering with conserved topsoil.

o Ropes, cables, or guy wires will not be fastened to trees o Construction materials or equipment will not be stacked against tree trunks o Protective measures will be installed around trees greater than 18 lnches diameter at breast height In one of two ways depending on the proximity to road/staging areas:

l For trees immediately atljarimt (l feet or less} to pavement, staging areas, or other work areas, th1; tree trunk will be wrapped with vertical lengths of nominal 2-lnch·thick lumber of varying width and lengths {I e, 2• x 6• x B') and secured with banding. Only 2-inch thick lumber will be wrapped around the parts or !he tree trunk that face construction acttvi ty and Iii at are vulnerable to d.amage, If lumber ls not wrapped around the entire tree, then protective material will be placed under the banding to prevent it from cutting into the bark Addltionally. lumber covered sections of trees will he wrapl"'..il with orange construction fencing to provide a visual cue to heavy equipment operators When possible, fencing wlll be extended to the drlpllne of the tree to protect the entlre root system

z. For trees uol lmrneuiatcly adjacent (Z to S feet) to construction activities, orange construction fencing wlll be installed Fencing will only be installed around parts of the tree trunk that face construction activities and are vulnerable to damage Construction fencing w!JI be placed at least 2 feet out from the tree trunk to provide n 2-foot buffer. When possible, the fencing will be extended to the dripline of the tree to protect the entire root system o The park wlll provide a list of trees to be protected, with station numbers for each tree Thi$ list will Indicate which methud will l.te u~ml fm each tree. FHWA/Wl'LHD will then Identify all trees to be avoided in the field.

o Scan ed tree surfaces will not be treated with tree paitit Damaged limbs will not be pruned unless approved by the CO o No tree roots will be cut or removed unless approved by the CO and park o The contractor will lmmedlately repo1tany tree damage caused by construction to the 00 !f protected trees aie damaged, the contractor 'Ail! pay damages as deter mined by tltc CO and park o Clearing and grubbing wtll be done 011 an as needed basis and only with CO and park approval.

o Trees within excavation areas will be preserved as determined by the CO and the park o Vehicles/stage equipment will park only in pullouts or other approved areas to avoid damage to tree roots No parking/staging will occur on road shoulders 01 other bnre ground ornos o Trees will not be oushed over wlth heavv eauioment unless approved bv the CO.