EROSION & SEDIMENT CONTROL STANDARDS MANUAL

Transcription

1 ROSION & SDIMNT CONTROL STANDARDS MANUAL Compliance with this manual is RQUIRD for: one & two family residential construction & sites disturbing between 5,000 ft 2 & 1 acre

2 Table of Contents Introduction... 2 Small Site Lot rosion Control Requirements... 4 Single Family Lot rosion Control Requirements... 5 Definitions... 6 Building Permit Holder rosion Control Responsibilities... 8 Maintenance - sediment fence and wattles... 8 Maintenance - temporary fencing around grass buffer strips... 9 Recordkeeping... 9 Inspections City Temporary Construction ntrance Sediment (Silt) Fence and Wattles Curb and Inlet Protection Concrete Wash Water Grass Buffer Strip Good Housekeeping Potential Sources of Stormwater Contamination Significant Materials Inventory Appendices Notice to xcavators & Builders rosion & Sediment Control Standard Plates rosion & Sediment Control Permit Application Notice of Intent Notice of Transfer/Modification Notice of Termination 1

3 Introduction This booklet contains a brief overview of the permitting, procedures, and plans required for typical small site construction and one & two family residential construction. It is intended to serve as a Stormwater Pollution Prevention Plan (SWPPP) for construction sites with land disturbing activities affecting between 5,000 square feet and 1 acre and for single and duplex residential building construction sites in Grand Forks. It is not intended to address all stormwater pollution prevention circumstances. The North Dakota Department of Health (NDDH) requires a Construction Activity Permit for Authorization to Discharge under the North Dakota Pollutant Discharge limination System (NDPDS) for s i t e s d i s t u r b i n g m o r e t h a n 1 a c r e o r sites that disturb less than 1 acre if it is part of a larger common plan of development (plat) that will disturb more than 1 acre. An application called a Notice of Intent (NOI) for coverage through the North Dakota Authorization to Discharge under the NDPDS Permit No: ND must be completed and sent in to the NDDH. A copy of the signed NOI must be attached to the City of Grand Forks rosion and Sediment Control Permit Application along with the base permit fee, and submitted to the ngineering Department prior to construction. One NOI may be used for multiple sites as long as they are in the same development. ach site address must be listed on the application. A copy of the completed and signed NOI, City of Grand Forks rosion and Sediment Control Permit, Notice of Coverage letter from the NDDH, this rosion & Sediment Control Standards Manual, and all site inspection and maintenance records must be available on site at all times. If a Notice of Termination has not been submitted, additional building sites in the same subdivision may be added to the same permit by completing and submitting a Notice of Transfer/Modification to the NDDH. A copy of this form should also be provided to the City. The Notice of Transfer/Modification may also be used to change other site information including change of ownership. All NDDH forms can be accessed from the City of Grand Forks or NDDH websites. The procedures outlined in this booklet are intended to eliminate or reduce the amount of sediments and other pollutants that leave a small o r reside ntial home construction site. The procedures to accomplish a reduction in sediment loss are known as Best Management Practices (BMP s). When used correctly, BMP s can be very effective in controlling sediment loss. The subdivision in which you are building may already have an overall SWPPP and coverage under the North Dakota Construction General Permit. That permit remains in effect until all the lots are stabilized. BMP s related to that permit and the plan should be in place and are not to be removed or compromised. 2

4 The building permit holder is responsible for ensuring that BMP's are in place on the individual lot and that they are functioning until the project is completed. It is also the building permit holders responsibility to inform sub-contractors and material delivery drivers of their responsibility to conform to the SWPPP and repair damage they do to the BMP s installed on the site. A project is defined as complete when the lot has been re-vegetated over 70% of the lot area. Once the site is complete, the permit holder shall fill out a Notice of Termination with the NDDH to end coverage. A copy of this form should also be provided to the City. There will be situations where side or rear lot line protection may not be required. For example, two houses under construction on adjacent lots where the surface drainage runs away from the other lot. Given this scenario, it is not the intention to require perimeter protection between the two lots. When reviewing the standards presented in this booklet and considering how to implement them on your construction project, keep in mind the intent of the standards is to prevent erosion and to minimize sediment loss. Failure to do so can result in damage to adjacent property, damage to the City s storm sewer system, and it can pollute receiving waters of the storm sewer system. If you have any questions or concerns, feel free to contact our Stormwater Compliance Inspector at We are committed to helping all those involved with the implementation of erosion and sediment control procedures. The NDDH website ( provides access to the following: Notice of Intent Notice of Transfer/Modification Notice of Termination NDPDS Construction General Permit (NDR ) Site Inspection Template Additional Information The City of Grand Forks website ( provides access to the following: rosion & Sediment Control Permit Application rosion & Sediment Control Standards Manual Standard Details Additional Information 3

5 Small Site Lot rosion Control Requirements 4

6 Single Family Lot rosion Control Requirements 5

7 Definitions Backfill and Rough Grading Take special care when backfilling the foundation and rough grading the lot to avoid disturbing the grass buffer strips. Best Management Practices (BMP s) xamples include, but are not limited to, temporary construction entrance, sediment (silt) fence, erosion control mat, straw mulch, sod, seed and fiber mulch. Final Grading BMP s may be removed to complete final lot grading. However, if the lot is to remain without vegetation for more than 14 days, the BMP s must remain in place and final grading should be delayed to coincide with seeding or sodding. During final grading, back dragging soil onto the street must be avoided. Any soil placed on the street must be removed and the street swept immediately. Grading/xcavating Install all BMP s prior to any grading or excavation. An exception is allowed for the temporary construction entrance. The future driveway may be excavated, then the temporary construction entrance installed. Take special care when stripping and stockpiling the topsoil from the lot to avoid disturbing the grass buffer strips including the berm and backyard drainage swale (which should be fenced by this time). When excavating for sewer and water connections, the grass buffer strip may be unavoidably disturbed. The grass buffer strip must be restored or a BMP installed in the area disturbed. Silt fence or straw wattles are acceptable. Dewatering of excavated trenches, basements or foundation walls must be done in a manner to protect the inlets from sediments. This can be accomplished by the use of sediment or filter bags. Inlet Protection nsure that the curb or rear yard inlets that receive runoff water from your lot have inlet protection. Contact the Stormwater Department at if they do not have protection. Maintenance The erosion and sediment control permit holder (also the building permit holder) is responsible for ensuring that adequate BMPs are in place and functioning until the project is completed. Protection of Adjacent Lots Install BMP's along the common lot lines where the adjacent lot receives runoff water from your lot and the adjacent lot has been graded, sodded, or seeded. 6

8 Sediment (silt) fence, wattles or straw bales can be used as a perimeter BMP. Stabilize Soil Stockpiles Install BMP s to stabilize stockpiles to prevent erosion of sediments onto adjacent lots or into rear yard or curb line inlets. Use sediment (silt) fence, wattles, or straw bales. Stockpile stabilization should include seeding with oats or rye grass within 14 days. Weed control of dandelions, thistle, and other noxious weeds is required at all times, on all properties. Temporary Construction ntrance The temporary construction entrance must be used by all trades and delivery personnel entering the property. Acceptable materials for the entrance will be crushed rock or gravel. The construction entrance must be installed prior to any excavation or stripping of topsoil. 7

9 Building Permit Holder rosion Control Responsibilities The building permit holder is responsible for ensuring that adequate BMPs are in place before any ground disturbing activities begin and until the project is completed. The building permit holder shall perform periodic inspections at least once every seven days or more frequently following rainfalls to ensure that erosion and sediment control measures are functioning as designed. Inspections shall also be performed after every rain event of 0.25 inches or more within a 24 hour period. Any problems noted during these inspections should be corrected immediately. Once construction has commenced, the permit holder is responsible for maintenance of erosion and sediment control measures protecting area inlets on their lots, as well as curb inlets along the street frontage. It is critical that sediment not be allowed to enter the storm sewer system. The temporary construction entrance provides a place for entering and leaving the construction site. The intent of the requirement is to provide a stable surface for vehicles entering and leaving the lot where mud is not likely to be tracked onto the street. The contractor is responsible for ensuring that all employee and delivery vehicles use this entrance and do not disturb the protected grass buffer strips along the curb line. Proper maintenance of the temporary construction entrance is required until such time as a permanent driveway can be put in place. During the entire construction period, the permit holder is responsible for ensuring that mud, dirt, rocks, and other debris are not allowed to erode or be blown onto City streets or sidewalks, nor to be tracked onto streets by vehicles leaving the construction site. Should any mud or other debris be tracked or eroded onto the street, the contractor shall take immediate steps to have it removed. Maintenance - sediment fence and wattles Inspect sediment fences and wattles at least once every seven days and after every 0.25 inch or greater rainfall. Make needed repairs immediately. Promptly replace any collapsed, torn, decomposed or ineffective sediment fence or wattles. Remove the sediments accumulated against sediment (silt) fences and wattles when those sediments reach 1/3 the height of the fence or wattle (NDDH requirement). Take care to avoid damaging or undermining the fence or wattle during cleanout. If utilities are installed after construction commences, the permit holder is responsible for control of erosion and sediment during the process. The contractor is responsible for 8

10 ensuring that all BMP devices are reinstalled per the original design. Maintenance - temporary fencing around grass buffer strips Inspect temporary fences daily to ensure they have not been compromised. Make needed repairs immediately. Promptly repair any damage to the grass buffer strip or install BMPs (silt fence or wattles) if the area is beyond repair. Promptly replace any collapsed, torn, decomposed or ineffective temporary fence. On a regular basis reinforce the need to use the construction entrance and to preserve the grass buffer strips with employees and delivery personnel. Recordkeeping A copy of the completed and signed NOI, City of Grand Forks rosion and Sediment Control Permit, Notice of Coverage letter from the NDDH, this rosion & Sediment Control Standards Manual, and all site inspection and maintenance records should be kept at the site of the construction activity in a field office, trailer, shed, or in a vehicle that is on-site during normal working hours. If there is not a reasonable on-site location, then the documents must be retained at a readily available alternative location; preferably with the individual responsible for overseeing the implementation of the SWPPP. lectronic copies of records are acceptable if the records can be accessed on-site. If the site is inactive, then the documents may be stored at a local office. 9

11 Inspections City City inspectors will normally inspect erosion and sediment control measures in conjunction with routine inspections. Inspections will ensure that appropriate erosion and sediment control measures are in place and properly installed. The first inspection should be scheduled with the Stormwater Inspector after the NOI is submitted and BMP s are in place. After this inspection work may begin on the site. This inspection will include the following: Inlet Protection Protection of Adjacent Lots Grading/xcavating Stabilize Soil Stockpiles Temporary Construction ntrance If BMP's are not installed, or are improperly installed, the footing inspection as well as the erosion and sediment control inspection may be denied. If sediments are found to be eroding off the construction site, the inspector may issue a Stop Work Order until the sediments have been removed and proper BMP's are established. If at any time BMP s are not installed, are improperly installed, or if sediments are found to be eroding off the construction site, the inspector may issue a Stop Work Order until the sediments have been removed and proper BMP s are established. There will be instances that fall outside the norms. City staff will be available to discuss erosion and sediment control measures for any lot and the sequencing for installation. If you have questions or concerns call to speak with the Stormwater Compliance Inspector. 10

12 Temporary Construction ntrance ach building site should consider a stabilized construction entrance if continuous traffic enters and exits the site. The construction entrance should be graveled or covered with crushed rock. The future driveway is a good place for the entrance. Insist that all trades, delivery and supply companies only use the approved entrance. This is not acceptable. The lack of a construction entrance has resulted in mud tracked onto the street and the curb line is completely full of sediments. This is a good example of a construction entrance using gravel. 11

13 Sediment (Silt) Fence and Wattles The top photo shows silt fence installed to stop erosion of sediments from the topsoil stockpile in the background. Silt fence, as shown in the detail drawings above, must be installed properly to be effective. That means the bottom of the fence must be installed in a 6 inch deep trench and anchored with soil. Wattles (also called bio-rolls or sediment logs) are made of straw or wood fiber bound within a net to form a tube. They typically come in 10 foot lengths and are 9-20 inches in diameter. They are available locally and are simple to install. Because they are easier to install than silt fence, the overall cost per foot for wattles should compare favorably with silt fence, when the cost of labor is included. 12

14 Curb and Inlet Protection The grading/erosion control permit holder is responsible for keeping sediments from leaving the construction site. The photos on the right show unacceptable curb and inlet protection. The top two photos show pumping unfiltered, sediment-laden water into curb lines resulting in pollution of the stormwater system inlets. The photo on the lower right shows a lack of silt fence, allowing soil into the curb line. The solution for instances where construction site water must be pumped is to use filter bags or socks (as shown in the photos below). The filters eliminate nearly all sediments from their discharge. They are inexpensive and can be reused many times before they need to be replaced. 13

15 Concrete Wash Water The erosion and sediment control permit holder is responsible for keeping sediments from leaving the construction site. This includes the actions of subcontractors, suppliers, and delivery firms visiting the site. The top two photos on the right show a concrete pumper truck being cleaned on the street. The photo lower right shows concrete sediment left on the street after truck cleanout. This practice is not acceptable. In most new subdivisions a truck cleanout location has been designated (as shown in the photo below). In the instance of a mechanical breakdown, where a truck must be cleaned on the street, all spilled material must be shoveled off the street. Simply spraying the spill with water will send the pollutants into the storm inlet, which is unacceptable. To prevent the potential need for cleanout on the street, whenever possible, the truck should setup on the lot rather than the street. 14

16 Grass Buffer Strip The photos on this page show things that are not supposed to happen. The purpose of the grass buffer strip (berm) has been compromised in each instance. If the grass buffer strip becomes damaged or is removed by such activity, then a replacement silt fence or wattles must be installed to serve the purpose of filtering sediments before they reach the curb line. Park vehicles on the street or on the private lot. Do not park trailers, cars, or trucks on the grass buffer strips. Building materials including sand, clay, black dirt, and gravel should never be stored in the grass buffer strips. Building material storage belongs on the private lot, not in the right-of-way. Use the construction entrance when unloading and loading equipment. 15

17 Good Housekeeping Potential Sources of Stormwater Contamination The purpose of this section is to identify pollutants that could impact stormwater during and after construction of a project. Pollutants can be in many forms including liquids, powders, dust granules, soil or other sediments, building materials, and debris leaving the worksite. Good housekeeping measures can eliminate or significantly reduce these pollutants from contaminating the storm sewer system. The following are some measures that should be implemented on every worksite. very worksite should be clean. ach worksite should be inspected regularly to discover and remove potential sources of pollutants. Building supplies and waste material should be appropriately contained so that nothing can be blown off-site by wind. Potential pollutants should be stored to protect against accidental release during storm events. Spills and mechanical breakdowns should be anticipated by having a plan in place, and materials on hand, to properly address such incidents. Significant Materials Inventory There are common pollutants that result from clearing, grading, excavation, road and home construction, which have the potential to be present in storm water runoff. These Significant Materials include, but are not limited to: raw materials; fuels; materials such as solvents, detergents, and plastic pellets; finished materials such as metallic products; hazardous substances designated under Section 101(14) of CRCLA; any chemical that is required to be reported pursuant to Section 313 of Title III of SARA; fertilizers; pesticides; and waste products such as ashes, slag and sludge that have the potential to be released with stormwater discharges. Good housekeeping measures should be concentrated on keeping these pollutants out of the storm water system. 16

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20 POST 5' LONG MIN. SPACD 6' MAX. APART COMPACTD BACKFILL 6" DP GROUND SURFAC FLOW 6" MIN. FILTR FABRIC 24" MIN ABOV GROUND P:\AutoCAD Libraries\Standard Plates\DWGs\SP69.02dwg.dwg FILTR FABRIC 24" MIN. ABOV GROUND GROUND SURFAC FLOW 6" MIN. 8" MIN. 24" MIN. 24" MIN. HAND PLACD MACHIN SLICD ALL SILT FNC SHALL B PROPX 2127 OR GOTX 915SC (OR APPROVD QUAL) POST 5' LONG MIN. SPACD 6' MAX. APART APL AC OF X CI T Y CLL OF NGINRING DPARTMNT N C DAT: 3/28/15 SILT FNC CITY NGINR ALLN GRASSR SCAL: NTS DRAWN BY: MPY STD. PLAT 69.02

21 10' (MIN.) MTAL PLAT INSTALLD OVR X. CURB AND GUTTR NW CONCRT APPROACH TMPORARY ACCSS OVR CURB & GUTTR A 6" (MIN.) OR 6" (MIN.) 15' (MIN.) A SCTION A-A TIR CLANING DVIC TOP VIW RMOV X CURB & GUTTR (WHN APPLICABL) 30' MIN OR TO WIDTH OF PRMANNT APPROACH XISTING PAVD ROAD CONCRT APPROACH 10' (MIN.) INSTALL FNC MIN 10' WID ACH SID TIR CLANING DVIC 50' (MIN.) TMPORARY CONSTRUCTION NTRANC TO B 6" (MIN. DPTH) OF 1" TO 2" CRUSHD ROCK ON TOP OF GOTXTIL FABRIC TMPORARY CONSTRUCTION NTRANC 20' (MIN.) P:\AutoCAD Libraries\Standard Plates\DWGs\SP69.03dwg.dwg NOTS: 1. TH LOCATION OF CONSTRUCTION NTRANCS SHALL B AS SHOWN ON TH PLANS AND SHALL COINCID WITH TH PRMANNT ACCSS. IF THIS IS NOT PRACTICAL, TH CONTRACTOR SHALL COORDINAT TH LOCATIONS WITH TH NGINR. 2. XISTING CURB AND GUTTR SHALL B RMOVD AND A CONCRT APPROACH SHALL B INSTALLD AS SHOWN. CONCRT APPROACH MAY B TMPORARY OR INSTALLD AS TH PRMANNT APPROACH TO TH SIT. APPROACH SHALL B SLOPD TO MATCH PROPOSD SIT GRADS OR MINIMUM 2% TOWARDS XISTING STRT. MTAL PLAT MAY B INSTALLD TO BRIDG CURB & GUTTR IN LIU OF C&G RMOVAL IF NO PRMANNT APPROACH IS TO B INSTALLD. 3. UPON COMPLTION OF TH PROJCT, TH CONTRACTOR SHALL RMOV TH TMPORARY CONSTRUCTION NTRANC UNLSS NOTD OTHRWIS, AND TH SIT SHALL B RSTORD TO IT'S PRVIOUS CONDITION. 4. NTRANCS SHALL B MAINTAIND IN A MANNR TO MINIMIZ TH TRACKING OF SDIMNT ONTO PAVD SURFACS. 5. FNC SHALL B INSTALLD ON ACH SID OF TIR CLANING DVIC, SPACD TO FORC TRAFFIC OVR DVIC. FNC POSTS SHALL B MTAL OR 4x4 WOOD, MINIMUM 4' TALL. APL AC OF X CI T Y CLL OF NGINRING DPARTMNT N C DAT: 3/28/15 TMPORARY CONSTRUCTION NTRANC CITY NGINR ALLN GRASSR SCAL: NTS DRAWN BY: RJL STD. PLAT 69.03

22 GRAT CURB HOOD FLAP RIGID FRAM WITH RCSSD OVRFLOW GOTXTIL FABRIC FILTR CASTING FRAM P:\AutoCAD Libraries\Standard Plates\DWGs\SP69.04dwg.dwg NOTS: CATCH BASIN ARA DRAIN 1. INLT PROTCTION DVIC SHALL B MANUFACTURD TO B RCSSD WITHIN SPCIFID OR XISTING CASTING. 2. OVRFLOW TO B SIZD AT A MINIMUM TO ACCOMMODAT TH GRAT FLOW CAPACITY. APL AC OF X CI T Y CLL OF NGINRING DPARTMNT N C DAT: 2/13/17 INLT PROTCTION CITY NGINR ALLN GRASSR SCAL: NTS DRAWN BY: MPY STD. PLAT 69.04

23 2"x2" WOOD STAK 5' MAX SPACING FIBR ROLL (STRAW OR WOOD) 9" MIN. DIAMTR SLOP VARIS NTRNCHD 3"-4" MIN 12" 5' MAX P:\AutoCAD Libraries\Standard Plates\DWGs\SP69.05dwg.dwg NOT: 1. WHN INSTALLING IT IS IMPORTANT NOT TO CRUSH FIBR ROLL. APL AC OF X CI T Y CLL OF NGINRING DPARTMNT N C DAT: 3/28/15 FIBR ROLL CITY NGINR ALLN GRASSR SCAL: NTS DRAWN BY: MPY STD. PLAT 69.05

24 3' MAX. SPACING WOOD FNC POST OR 2 X 4 STAK (PROVID BRACING BTWN POSTS IF NCSSARY) 4'-6' DIA. GOTXTIL FABRIC (OUTSID) WIR MSH RINFORCMNT (INSID) DROP INLT WITH GRAT MBD WIR MSH AND FABRIC 6" MIN. P:\AutoCAD Libraries\Standard Plates\DWGs\SP69.06dwg.dwg NOTS: 1. INLT PROTCTION DVICS SHALL B MAINTAIND OR RPLACD AT TH DIRCTION OF TH NGINR. 2. MANUFACTURD ALTRNATIVS MAY B SUBSTITUTD, SUBJCT TO TH NGINR'S APPROVAL. 3. WHN RMOVING OR MAINTAINING INLT PROTCTION, CAR SHALL B TAKN SO THAT TH SDIMNT TRAPPD ON TH GOTXTIL FABRIC DOS NOT FALL INTO TH INLT. ANY MATRIAL FALLING INTO TH INLT SHALL B RMOVD IMMDIATLY. ARA DRAIN INLT PROTCTION TYP 1 3/28/15 PLAT APL AC OF X CI T Y CLL OF NGINRING DPARTMNT N C DAT: 3/28/15 ARA DRAIN INLT PROTCTION TYP 1 CITY NGINR ALLN GRASSR SCAL: NTS DRAWN BY: MPY STD. PLAT 69.06

25 XISTING GROUND SLOPD TO INLT 2"x4" WOOD FRAM GOTXTIL FABRIC STAPLD TO FRAM FLOW INLT CASTING 3'-0" 1'-6" FLOW 6" BLOW GRAD 6" P:\AutoCAD Libraries\Standard Plates\DWGs\SP69.06Adwg.dwg NOTS: 1. PRMANUFACTURD FRAMS MAY B USD INSTAD OF CONSTRUCTING WOOD FRAMS, PROVIDING THAT ADQUAT SUPPORT FOR TH GOTXTIL FABRIC IS PROVIDD. APL AC OF X CI T Y CLL OF NGINRING DPARTMNT N C DAT: 3/28/15 ARA DRAIN INLT PROTCTION TYP 2 CITY NGINR ALLN GRASSR SCAL: NTS DRAWN BY: MPY STD. PLAT 69.06A

26 SLOP P:\AutoCAD Libraries\Standard Plates\DWGs\SP69.07dwg.dwg NOTS: 1. 'TRACKING' WITH MACHINRY UP AND DOWN TH SLOP SHALL B DON PARALLL TO TH SLOP TO MINIMIZ ROSION DU TO RAINFALL RUN-OFF. 2. ALL DISTURBD AND NWLY CONSTRUCTD SLOPS SHALL B 'TRACKD' IMMDIATLY UPON SLOP CONSTRUCTION PRIOR TO TURF RSTORATION. APL AC OF X CI T Y CLL OF NGINRING DPARTMNT N C DAT: 3/28/15 SURFAC ROUGHNING CITY NGINR ALLN GRASSR SCAL: NTS DRAWN BY: MPY STD. PLAT 69.07

27 SILT FNC OR FIBR ROLL PUMP DISCHARG HOS 6" MIN NTRNCHD 3"- 4" PUMP DISCHARG HOS 6" MIN. DPTH PA ROCK SILT FNC OR FIBR ROLL GRASS BUFFR FLOW P:\AutoCAD Libraries\Standard Plates\DWGs\SP69.08dwg.dwg NOTS: 1. DISCHARG WATR ONTO A GRASS BUFFR. 2. DISCHARG WATR MUST FLOW AWAY FROM CONSTRUCTION ARA. 3. TH PA ROCK MAY B PLACD ON GRASS OR NGINRING FABRIC MAY B USD. DWATRING STRUCTUR SHALL NOT B PLACD ON BAR SOIL. 4. TH CAPACITY OF TH STRUCTUR SHALL B ADQUAT TO HANDL TH DWATRING PUMP DISCHARG. APL AC OF X CI T Y CLL OF NGINRING DPARTMNT N C DAT: 3/28/15 AGGRGAT FILTR DWATRING CITY NGINR ALLN GRASSR SCAL: NTS DRAWN BY: MPY STD. PLAT 69.08

28 BAG PLACD ON AGGRGAT OR STABLISHD GRASS DISCHARG WATR SDIMNT CONTAINMNT FILTR BAG SWN IN SPOUT PUMPD SDIMNT LADN WATR PUMP DISCHARG HOS SCURD TO SPOUT DISCHARG WATR SDIMNT CONTAINMNT FILTR BAG BAG PLACD ON 6" OF AGGRGAT OR OR STABLISHD GRASS SDIMNT FILTR BAG NOTS: 1. DISCHARG WATR ONTO A GRASS BUFFR. 2. DISCHARG WATR MUST FLOW AWAY FROM TH CONSTRUCTION ARA. 3. SDIMNT CAPTURD BY TH FILTR BAG MUST B RMOVD AND STABILIZD. P:\AutoCAD Libraries\Standard Plates\DWGs\SP69.09dwg.dwg 4. TH FILTR BAG SHOULD B CONSTRUCTD OF NON-WOVN GOTXTIL MATRIAL THAT WILL PROVID ADQUAT FILTRING ABILITY TO CAPTUR TH LARGR SOIL PARTICLS FROM TH PUMPD WATR. 5. TH BAG MAY B PLACD ON WLL STABLISHD GRASS OR 6" MINIMUM OF AGGRGAT. FILTR BAG SHALL NOT B PLACD ON BAR SOIL. 6. TH CAPACITY OF TH FILTR BAG SHALL B ADQUAT TO HANDL TH DWATRING PUMP DISCHARG, AND SHOULD B BASD ON TH BAG MFG.'S RCOMMNDATION. 7. WHN USD IN CONJUNCTION WITH A STRAW BAL/SILT FNC PIT, A FILTR BAG MAY B OPRATD UNTIL TH WATR IN TH PIT RACHS TH CRST OF TH MRGNCY OVRFLOW. TH PUMP MUST B SHUT OFF AT THIS POINT. 8. RMOV SDIMNT FROM FILTR BAG, RGRAD IN PLAC, AND IMMDIATLY STABILIZ. APL AC OF X CI T Y CLL OF NGINRING DPARTMNT N C DAT: 3/28/15 SDIMNT BAG DWATRING CITY NGINR ALLN GRASSR SCAL: NTS DRAWN BY: MPY STD. PLAT 69.09

29 MIN 6" WATTL WRAPPD IN GOTXTIL FABRIC OR APPROVD QUAL STOCKPILD MATRIAL GOTXTIL FABRIC MIN. 6" PVC PIP UNDR WATTL AND GOTXTIL FABRIC BRM CURB TRAFFIC CON MIN 6" WATTL WRAPPD IN GOTXTIL FABRIC OR APPROVD QUAL 6" MIN STOCKPILD MATRIAL 6" MIN P:\AutoCAD Libraries\Standard Plates\DWGs\SP69.10dwg.dwg PIN GOTXTIL FABRIC TOGTHR TO ATTACH WATTL TO FABRIC OR APPROVD QUAL GOTXTIL FABRIC MIN 6" C900 PIP APL AC OF X CI T Y CLL OF NGINRING DPARTMNT N C DAT: 3/28/15 STOCKPIL ON STRT CITY NGINR ALLN GRASSR SCAL: NTS DRAWN BY: MPY STD. PLAT 69.10

30 A 15' TYP BARRIR FNC (ND NOT B SILT FNC) BACK OF CURB 2' DP MIN. CLAN 80% OF CAPACITY 1' DP MIN. 8'-10' TYP FIBR ROLLS MAX 4' SPACING FOR STAKS GUTTR STRT A BLOW GRAD PLAN VIW XISTING GROUND BARRIR FNC 1' MIN. FRBOARD FIBR ROLL BACK OF CURB MAY B UP TO 4' DP DPNDING ON CAPACITY RQ'D BLOW GRAD SCTION A-A PROVID MIN. 4" FRBOARD CLAN 80% OF CAPACITY WOODN STAKS P:\AutoCAD Libraries\Standard Plates\DWGs\SP69.11dwg.dwg LNGTH & WIDTH SIMILAR TO BLOW GRAD OPTION XISTING GROUND OR ROADWAY ABOV GRAD SQUAR BAILS OR OTHR APPROVD MATRIAL 10 MIL PLASTIC (MIN) APL AC OF X CI T Y CLL OF NGINRING DPARTMNT N C DAT: 3/28/15 CONCRT WASHOUT CITY NGINR ALLN GRASSR SCAL: NTS DRAWN BY: MPY STD. PLAT 69.11

31 BACKYARD DRAINAG SWAL DO NOT GRAD BYOND COLORS: LGND - WHIT BACKGROUND - GRN SIGN DTAILS SID LOT LIN BACK LOT LIN BACKYARD DRAINAG SWAL BOTTOM GRASS BUFFR P:\AutoCAD Libraries\Standard Plates\DWGs\SP69.12dwg.dwg SIGN PLACD IN MIDDL OF LOT 10 FT FROM BACK LOT LIN BACKYARD DRAINAG DO NOT GRAD BYOND 10' LOCATION DTAILS APL AC OF X CI T Y CLL OF NGINRING DPARTMNT N C DAT: 3/28/15 BACKYARD DRAINAG SIGNING CITY NGINR ALLN GRASSR SCAL: NTS DRAWN BY: MPY STD. PLAT 69.12

32 SHRDDD HARDWOOD MULCH GOTXTIL FABRIC FOR WD SUPRSSION 5" COMMRCIAL GRAD BLACK POLYTHYLN DGING LAWN GRAD TAPR MULCH DPTH TO 2" AT DGING PRPARD PLANTING BD TOP OF BD GRAD SLOPD AT 2% MINIMUM SUBGRAD P:\AutoCAD Libraries\Standard Plates\DWGs\SP69.13dwg.dwg NOT: DGING IS TO B STAKD AT A MINIMUM OF VRY 7 FT AND AT TH BGINNING AND ND OF ACH LNGTH APL AC OF X CI T Y CLL OF NGINRING DPARTMNT N C DAT: 3/28/15 PLANTING BDS CITY NGINR ALLN GRASSR SCAL: NTS DRAWN BY: MPY STD. PLAT 69.13

33 rosion and Sediment Control Permit Application Requirements Check One: Land disturbance is less than 5,000 sq ft Land disturbance is greater than 1 acre or part of a Requires only SC Permit, refer to SC Standards larger development Manual # Requires NOI & SWPPP to be submitted with this FALS application Land disturbance is between 5,000 sq ft & 1 acre One & two family residential construction Requires compliance with SC Standards Manual Requires compliance with SC Standards Manual FALS FALS Name of Project Owner Project Name Mailing Address Project Address City, State, Zip Size (acres) Phone Number mail Printed Name of Representative Signature of Representative** Contractor Date Owner Contractor Other* *Specify if Other: Phone: **I hereby agree to follow the conditions and requirements included in Chapter XV of the Grand Forks City Code. Attached is a copy of the State of North Dakota Notice of Intent (NOI) & Storm Water Pollution Prevention Plan (SWPPP) if applicable. mail: GF Stormwater Permit Number Base Permit Fee: Per Acre Fee - $16/ac: Total Permit Fee: $55.00 FINAL APPROVD SWPP PLAN SWPP PLAN APPROVD BY: DAT: SWPP PRMIT Storm Water Pollution Prevention Permit #. This permit is effective upon site inspection of satisfactorily installed devices and original signature of City representative and Owner's representative in the field. City Representative Date Owner Representative Date

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