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BLD-2021-0177 BMPIn the Santa Clara Valley, storm drains flow directly to our local creeks, and on to San Francisco Bay, with no treatment. Storm water pollution is a serious problem for wildlife dependent on our waterways and for the people who live near polluted streams or baylands. Proper management of construction sites reduces pollution significantly. This sheet summarizes the "Best Management Practices" (BMPs) for storm water pollution prevention. ORDINANCE OF THE CITY OF CUPERTINO FOR STORM WATER POLLUTION PREVENTION & WATERCOURSE PROTECTION: Chapter 9.18 9.18.040 Discharge into the storm drain prohibited It is unlawful to cause, allow, or permit to be discharged, any discharge not composed entirely of stormwater to the storm drain system or to surface waters or to any location where it would contact or eventually be transported to surface waters, i nd udi rag flood plain areas, unless specifically called out in the Municipal Regional Permit as an exempt or conditionally exempt discharge. 9.18.070 Accidental Discharge All persons shall notify the Director of Public Works immediately upon accidentally discharging pollutar>ts of concern to enable countermeasures to be taken by the City to minimize damage to storm drains and the receiving waters. Ir>idal notification shall be followed, Wtfhin five(5) business days of the date of occurrence, by a detailed written statement descr1bi rag the causes of the acddential discharge and the measures being taken to prevent future occurrences. Such nod ficab on W Il not relieve persons of iabi Iity for violab ons of this chapter or for any fines imposed on the City on account thereof under Section 13350 of the Ca li fomi a Water Code, or for vi dation of Section 5550 of the Califomia Fish and W1dlifeCode, or any other applicable provisions of State or Federal laws. 9.18.220 Violation* Any person who vi d ates any provisi on of this Chapter shall be guilty of a misdemeanor and upon conviction thereof shall be punished as provided in Chapter 1.12 of the City of Cupertino Municipal Code. Chapter 1.12: General Penalty, Section 1.12.010, paragraph D, states`: Unless otherwise specified by this code, an infraction is punishable by: 1. A fi ne not to exceed $100 for a first vi of ati on 2. A fine not to exceed $200 for a second violation 3. Afine not to exceed $500 for a third violation of the same chapter within one year. 9.18.240 Civil penalty for illicit discharges' Any pers on who discharges pollutants, in violation of thi s Chapter, by the use of 1Ilicit connections shall be civi Ily Ilable to the City i n a sum not to exceed twenty-five thousand dollars per day per violation for each day in which such violation occurs. *Excerpts - For complete CODE language refer to the City ofCupertino Municipal Code. C upertino Building Dept: 408-777-3228 Public Works Dept: 408-777-3354 Santa Clara County Recycling Hotline: 800-533-8414 www.redur.ewaste.orq www.recyc Iestuff.com Small Business Hazardous Waste: 4 0 8 - 2 9 9 - 7 3 0 0 Cupertino Sanitary Sewer ❑istr 408-253-7071 Santa Clara Valley Urban Runoff Pollution Prevention Prgm 800-794-2482 State office of Emergency Services 1-800-852-7550 (24 hrs) Report spills to 91 1 APPROVE TiMM BORDEN, R=45512 DATE DIRECTOR OF PUBLIC WORKS General Construction and Site Supervision Storm drain Pollution from Construction Acti m ties Con strumon sites are carnmon sources of storm mterpollutfon. Materials and wastes that blow or wash into a st orm drain- gut ter, or st ree I have a di rect r n pact on I ocal creeks and the Bay As a contractor, or site supervisor, owner or operator of a site. you maybe responsible for any environmertai damage caused by your subcontractors or employees. General Principles ❑ Keep an orderly site a nd a nsure good housekeeping practices are used. ❑ Maintain equipment properly. ❑ Cover met enais when they are not in use. ❑ Keep met enals away tom streets. storm drains a nd d rai na ge chan ne s ❑ Ensure dust control water doesn't leave si to ordischarge to storm dfains Advance Plan4ng To Prevent Poffution J Schedule excavation and grating activities for dry weather periods. Tc reduce soi erosion. ptanttemporaryvegetationorpbce oIher erosion a)ntrot s before rain begets- Use t -te Erosion and S eda77 ent Cc rat 6 Mari ual. available from -he Regional Water ❑uality Control Boa rd- as a reference. J Control the amount of runcff crossing your site (especial hy durng excavation') by using b erms or temp orar y or permanen t drat Wage dtches to divert water flow around the site Reduce stormNate r runoff vebaties by constructing temporary check dams orberrrts where appropriate Trai n your employees and subcontractors. The city can prow de brochures about these issues for you to distribute to wurkem at your construction site inform you r subcon1re 6tots about the stomv"er requirements and 1t eir own responsilbilities. Use Biueparg fora Clean Bay, a cams tff.iction best management cacti ce s guide avai table at our Buidin g Dept. counter Good Ho use keep rig Practices J ❑esig note one area of the site for auto park) ng- ve hide refu 6 rxg. a nd rout re a qui patent mai uena nee. The designa led area sh ouki be %wll away from streams or storm drain i niets- bermed if necessary Make major repairsaff site ❑ To prevent of -site tracking of dirt, provide entrances with slablumd aggregate surfaces. Or provide a hre wash area. LJ Keep materials out of the rain — pre�e nit runoff contamination at the source. Corer exposed piles cf sal or construction materials with plastic sheeting or temporary roofs. Befom n rains- sweep and remove materials from surfaces that drain to storm drains. creeks. orchannel; - Contain all litter, food wrappers, bottles and cans -Place lidded trash and recycling bens around the stte. �l Clean up leaks, dips and other spills m medr atel y sot hey do not contaminate sof or grow rKfvmt er or le aee rest due on paved su rfaces. Use dry cleanup methods wtenever possible- If you crust use water. use just enough to keep the dust down- :] Cover and maintain dumpsters Place dun-pde is under roofs or cover with tarps or plastic sheets ng secured around the outside of the dump sfer. Never clean out a dumlpster by hosing it down on the ccnstrutx Ion site. J Pt ace portable toilets away from dorm drains. f\hake sure porta'rle toilets are in good workrng crde r C heck f reouen tly for leaks. Ma teri alslWa ste Handling J Practice Source Reduction--mnimze waste When yo u oride r rna teri al s. Esti mate careful ly. ❑ Recycle excess materials. whenever passitNe. such as concrete. asphalt. scrap metal sdvertls. degreasers- cleared vegetation, paper rock. and w hide ma ntena nce materials such as used oil. antifreeze- battenes. and tires _-- for info J Dispose of all wastes properly. Matenalsthat cannot be recycled atlas( be taken to an appropn ate I andFi I I or dispose d of as hazardo us waste. Never bury vraste matenalsor leave them in the street orneara creekorstreambed. Permits LJ In addrtxon to Iccal grading and building permits. ya u vui i need to obtain coverage under the Slate's General Construction Activity Storm4�eter Permt it ycurconstrudicn site's disturbed area totals 5 acres or more. Information on the General Re ant can be oict aired from the Regional Water ❑ual ity Cont rd Board. (This cdteria will change to one acre as of Mar. 2003-) Landscaping, Gardening, and Pool Maintenance Lands capinglGarden Maintenance Protect stockpiles anc landscaping materials from wind and rain by storing 'hem under tarps of secured clastic sheeting. J Schedule grading and excavation project; during dry weather ❑ Use le m pora ry ch e ck dams or ditches to diver•, runoff awav from storm drains. J Protect storm drains with sandbags, gravel - filled bags. straw wattles, or cther sediment cants cis Re-veg etatlon is an excellent form of erosion control for any site. Li Store pesticides. fertilizers- and other chemicals indoors or in a shed or storage tabu net J Use pesticides sparingly. according to rnstrt,ctions on the lake Rinseempty containers, and use rinsewater as product - Dispose of rinsed. err py containers in the trash Dispose of unused pesticides as haza•dous waste LJ In Cupertin o.resdents with curbsid e recycling can collect lawn. garden and tree trimmings ir. yardwaste toters. Yardwaste will be collected and composted by the city s contractors Residents are encouraged to compost yard waste on -site themselves- Or take Yardwaste to a landfill where it will be cam Po sted Landscape contractors should take clippings and pruning waste to a landfill that composts yard waste iBFI-s NY�yby Island and ZankerRd- landfill are tie nearest). J Do not blow or rake leaves into the street. Storm Drain Pollution from Landscaping and Swimming Pool Maintenance Man y I an d scapi ng: activities expose soils and increase the likelihood that earth and garden Chem cats will run off Into the storm drains during im9aton or when it rants. Swimming pool water mntairing chbrine and copper -based algaecides should never be discharged to storm drams. These chemicals are toxic b aquatic life. Pool/Fountain/Spa Maintenance Draining pools or spas Whe r its tim a to drain a Poo I, spa, or -ountain please be stare to call the Cupertino Sanitary Dislr ict before you start to r fur he r g uica Tice on flow rate restrictions. backflow prevention, and ha ndI ng specia cleaning waste {such as acid wash; Discharce flows shoulc be kept to the low levels typically possible through a garden hose. Higher flow rates may be prohibited by local ordinance- Nev er discharge pool or spa water to a street or storm drain: discharge to a sanitary sewercleanout. J if possible- when empty ng a pool or spa- let chlorine drssipa;e for a few days and then recycleireuse waterby draining it gradually onto a landscaped area J ❑o not use copper -based algaecides - Controlalgze w t h chlorine or other alternatives, such as sodiurr bromide. Filter Cleaning J Never clean a filter in the street or near a storm drain. Rinse cartricge and diatom acew searth filters onto a dirt area, and spade filter residue into soil Dispose of spent diatomaceous earth in the garbage ❑ 1f there is no suitable dirt area. call Cupenino Sanitary brrnstruction son disi-hargingfilter backwasn or rinsevwater to ti-e sanitary sewer. Earth -Moving Activities Storm Drain Pollution from Earth -Moving Activities Soil excavation and grading operations loosen large amounts of soil that can flow or blow into storm trains when handled improperly. Sediments in runoff can dog storm drains- smother aquatic life. and cestroy habitats in creeks and the Bay. Effective erosion control practices reduce the amount of runoff crossing a site and slow the flow with check d ams or roughened ground surfaces. Practices During Construction J Remove existing vegetation only when absolutely necessary Plant temporary vegetation for erosion control on slopes or where construction is not immediately planned - Protect downslope drainage courses, streams, and storm drains with wattles. or temporary drainage swales Use check dams or ditches to divert runoff around excavations - Refer to the Regional Water Quality Control Boards Erosion and Sediment Control Field Mann at fo r pro per er os ion a nd sedim ent co ntrol measures .] Cover stockpiles and excavated soil with secured tarp s or pl astic sheeting- The property owner and the contractor share ultimate responsibility for the activities that occur on a construction site. You may be held responsible for any environmental damage caused by your subcontractors or employees. Painting and Application of Solvents and Adhesives Storm Drain Pollution from Paints, Solvents, and Adhesives All pairits, solvents, and adhesives contain chemicals that are harmful to wildlife in local creeks, San Francisco Bay. and the Pacific Ocean. Toxic chemicals may come from liqu id or solid products or from cleaning res dues or rags. Paint material and wastes adhesives and cleaning fluids should be recycled when possible, or disposed of properly to prevent these materials from flowing into storm drains and watercourses - Handling Paint Products ❑ Keep all liquid paint products aril wastes away from the gutter, street, and storm drai ns- Painting Cleanup LJ Never clean brushes or rinse paint containers into street, gutter, storm drain, French drain, or creek. ❑ Forwater-based paints. paintout brushes to the extent possible. and rnse into an inside sink drain that goes to the sanitary sewer LJ For oil -based paints. paint out brushes to the extent possible and clean with thinner or solvent. Filter and reuse b1nners and solvents. where possible- Dispose of excess liquids and residue as hazardous waste. ❑ When thoroughly dry. empty paint cans. used brushes. rags- and drop doths may be disposed of as garbage Paint Removal _j Paint chips and dust from non -hazardous dry stripping and sarid blasting may be swept up or collected in plastic drop cloths and disposed of as trash. J Chemical paint stripping residue, and chips and dust from ma rine paints, or paints containing lead, mercury ortributyl tin must be disposed of as hazardous wastes. Lead based paint removal requires a state -certified contractor J When stripping or cleaning building exteriors with high-pressure water, block storm drains. Direct wastewater onto a dirt area and spade into sal. or. check with Cupertino Sanitary District to find out if you can mop or vacuum the wastewater and dispose of it in a sanitary sewer drain- Sam piing of the wastewater may be req uired- ❑ Washwater from painted buildings constructed before 1978 can contain high amounts of head, evert if paint chips are not present. Before you begin stripping paint or cleaning pre -1978 building exteriors with water under high pressure, test paint for lead by taking paint scrapings to a local laboratory. (See Yellow Pages for astate-certified laboratory) J If there is loose paint on the building. or it the paint tests positive for lead. block storm drains Check with Cupertino Sanitary District to determine whether you may discharge water to the san ita ry sewer. or d you must send it offsite for disposal as hazardous waste Paint Disposal, Return or D onation J Dispose of unwanted liquid paint thinners. solvents. glues. and deaning fluids as hazardous waste (call the Small Business Hazardous Waste Prgm- 299-7300). J Or Return to suppi ier, ( Unopened can s of paint may be able to be returned. Check with the vendor regarding its "buy-back" policy.) J Donate excess paint (cat 12 99-7 300 to donate.) Roadwork i and Paving General Business Practices Lj Develop and implement erosionlsediment control plans for roadway embankments- ❑ Schedule excavation and grading work during dry weather. ❑ Check for and repair leaking equipment ❑ Pe rform major ectu ipm ent repairs a t designated areas in your maintenance yard. whe re cleanu p is ea sier- A void perfo rm ing equipment repairs at construction sites. �j When refueling or when vehiclelequipm ent maintenance must be done on site, designate a Iota do n away fro m storm drain s an d creeks. J ❑o not use diesel oil to lubricate equipment parts or clean equipment `-j Rec ycle used oil. concrete. broke n a sphalt. etc. whenever possible. or dispose of properiy- (www.recyclestuff-com for list of recycling cam pa nies. y Asphalt/Concrete Removal ❑ Avoid creating excess dust when breaking asphalt or concrete. After breaking up old pavement- be sure to remove all chunks and pieces. Make sure br ok en pavem ent d oes not com e i n con tact with rainfall or runoff �j W hen making saw cuts- use as little water as possib le- S hovel or vacua m saw -cut slu rry and re m ove fro m the site- C over or p rotect sto rm drain inlets during saw -cutting- Sweep up. and properly dispose of- all residues Sweep. never hose down streets to clean Lip tracked dirt. Use a street sweeper or vacuum truck. Do not dump vacuumed liquor in storm drains - Storm Drain Pollution from Roadwork Road pavan g, surfacing, and pavement remova I happen right in the street. where there are numerous opportunities for asphalt, saw -cut slurry. or excavate d m aterial to isle gaily en ter storm drain s- Extra planning is required to store and dispose of materials properly and guard against pollution of storm dra ins creeks. and the Bay. During Construction ❑ Avoid paving and seal coating in wet weather, of when rain is forecast, to prevent fresh materials from contacting stormwater runoff. L] Cover and seal catch basins and manholes when applying seal coat, slurry seal- -og seal, or sim filar materials. ❑ Protect drainage ways by using earth dikes - sand bags. or other controls to divert or trap and filter runo ff- ❑ Never wash excess material from exposed - a ggreg ate co nc re to or s im filar trea tm e nts into a street or storm drain Collect and recycle. or d ispose to d in a rea. Cover stockpiles (asphalt. sand. etc-) and oth er cc nstructio n m ateriais with plastic tarp s. Protect from rainfall and prevent runoff with temporary roofs or plastic sheets and berms ❑ Park paving machines over drip pans or a bsorbe nt m a to rial (cloth. rags. etc. ) to catch drips when not in use. ❑ Clean up all spills and leaks using "dry' methods (with absorbent m a ter ials and/or rags), or dig up. remove. and properly dispose of contaminated soil- ❑ Collect and recycle or appropriately dispose of excess abrasive gravel or sand. 777 ❑ Avoid over -application by water trucks for dust control - CONSTRUCTION BEST MANAGEMENT PRACTICES Dewatering Operations Storm Drain Pollution From Dewate ring Activities Be sure to call your city's storm water inspector at 408-472-9907 before discharging water to a street gutter, ❑ r storm drain. Filtration or diversion through a basin, tank:, and sediment trap may be required. Reuse water for dust control, irrigation or another on -site purpose to the greatest extent possible- Ch eck fo r Sed im ent or Toxic Polltitan is ❑ Check for odors, discoloration, or an oily sheen on groundwater. ❑ Ask your city inspector whether the groundwater must be tested by a certified laboratory. ❑ Depending on the test results, you maybe allowed to discharge pumped groundwater to the storm drain OR you may be required to discharge to the sanitary sewer or cailect and haul the water off - site for treatment and disposal at an approp riate treatment facility- ❑ When discharging to a storm drain, protect the inlet using a barrier of burlap bags filled with drain rock, or cover inlet with filter fabric anchored under the grate. ❑ Contact Cupertino Sanitary District at 253 -707 1 prior to discharging to the sanitary sewer - Removal of BMP Facilities The Project Contractor is responsible for removal of all BMP Facilities located within the Public Right of Way upon project final inspection. Fresh Concrete and Mortar Application Storm Drain Pollution from Fresh Concrete and Mortar Applications Fresh concrete and cement -related mortars thatwas h into lakes, streams, or estuaries are toxic to fish and the aquatic environment. Disposing of these materials to the storm drains or creeks can block storm drains, causes serious problems, and is prohibited by law. General Business Practices J Wash out concrete mixers only in designated washout areas in your yard, away from storm drains and waterways. where the water will flow into a temporary waste pit in a dirt area- Let water percolate through soil anddispose of settled, hardened concrete as garbage. IlVheneverpossible, recycle washout by p umpin g back into mixers for reuse J Wash out chutes onto dirt areas that do not flow to streets or drains. LJ Always store both dry and wet materials under cover, protected from rainfall and runoff and away from storm drains or waterways. Protect dry materials from wind J Secure bags of cement after they are open. Be sure to keep wind-blown cement powder away from streets. gutters. storm drains, rainfall, and runoff. J Do not use diesel fuel as a lubricanton concrete forms. tools, or trailers ❑uring Construction J Don't mix up more fresh concrete or cement than you will use in a two-hour period. J Set up and operate small mixers on tarps or heavy plastic drop cloths- J When cleaning up after driveway or sidewalk construction. wash fines onto dirt areas. not down the driveway orinto the street or storm drain J Protect ap plication s of fr es co ncrete and mortar from ra infa II and runoff until the m ateria I ha s dr ied J Wash down exposed aggregate concrete only when the washwater can (1 ) flow onto a dirt area. (2) drain onto a bermed surface from which it can be pumped and disposed of properly, or (3) be vacuumed from a catchment created by blo ck in g a storm drain inlet If necessary, divert runoff with temporary berms Make sure runoff does not reach gutters or storm drains. J When breaking tip pavement, be sure to pick up all the pieces and dispose of properly Recycle large chunksof broken concrete. See www.reducewaste.om for info on recyclers- ❑ Never bury waste material Dispose of small amounts of excess dry concrete- grout. and mortar in the trash .J Never dispose of washout into the street. storm drains, drainage ditches. or streams Heavy Equipm ent operation S to rm water P o llu do n from Heavy Equipment on C o nstru ctio n S ites Poorly rn ainta ined veli icles and heavy equipment that leak fuel, ,it, antifreeze or other fluids on the construction site are corn m on sou rces of storm drain polluti❑ n. Prevent spills and leaks by isolating equipment from runoff channels, and by watching for leaks and other maintenance problems. Remove construction equipment fro m the site as soo n as possible Site Planning and Preventive Vehicle Maintenance J nesignate one area of :he construction site, welt away from stream s or storm drain inlets for auto and equipm ent parkrng refueling and roitine ve hic le and equipm en. m ainten ante Contain tti a area with berm s. sand bags. or other barriers J Maintain all vehicles and heavy equipment n sp ect frequ enrly for a nd rep air leaks J Perform m ajor maintenance, repair jobs ano ve hic le and egi+pni en: w asl•ing off -site, where clean up ;s a asier J iryou mus:crain and replace motoroil- radialor coolant or ether fluids on site use drip pans or drop cloths to catch drips and spills Collect all soeni fits ds s lore in sep agate contain ers an d properly dispose as hazardous waste (recycle w hen ever aossrbie) J ❑o not use diesel oil to lubricate equipment Paris or crea n ecu rp^i en t Use only water for any onsite clean ing J C o ver exp o sed fifth w h eel hitch s and tithe r oily or greasy equipm a nt du -.ng rain everts Spill Cleanup J Clean up spills immediately J Never hose down 'dir,.y' pavementor impermeable surfaces where fluids nave spilled Use dry cleanup methods',absorbent rr ater,a Is cat litter a ncror rags) whenever possible and properrydispose ofabsorbenl m ateria Is J sweep up spilled dry materials immediately - N ever atte rn pt to 'w ash them away" with wa to r- or bury them J Use as little w ate r as possible fo- dust control. Ensure wa ter us ed doesn t leave srit or discharge to slorm drains L] Clean up Spills pn dirt area by digging up and prope-iy disposi-g of con tar-iinated soil U Call 911 for significant spills ❑ if the spill poses a significant hazard to human health and safety property or the environment you m ust also report it to the State Office of Ern ergency Services. Small Business Hazardous Waste Disposal Prgm Businesses that generate less than 27 gallons or 220 pounds of hazardous waste per month are eligible to use this program. Call 408-299-7300 for a quote. R11 FM WIN W­ cc Y* rwr -! Cc -0 = = %e 1jN0 DEPARTMENT OF PUBLIC WORKS CITY of CUPEkTINO /n Santa Cl;ma Vallev Prrllutitm PrO'l'tttlnn Prnf rain UPDATED SEPTFMB) R 2016 SHEET: OF SHF.F.TS FILL