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HomeMy WebLinkAboutOperations & Maintenance Manual1 t ,~~ /~. LI: WEIHE `~' '~ ~~`~~ ENGINEERS ?-.~~~ ' Land Surveying ~ Civil Engineering '~ _:a. ~ ~' / Landscape Architecture --~ B u7ld ~r lllc r'on~i den ce~° '-~~ ~ _ aa'kJt;;~: .;~ a Operations and Maintenance Manu For: FIRESTONE SERVICE CENTER Carmel, Indiana Project #W08-0700 Prepared For: AMCON Design and Consultants 20633 Watertown Court, Suite 200 Waukesha, WI 53186 Tele - (262) 707-9944 Fax - (262) 707-9510 Contact: Chris Kloiber Prepared By: Christopher M. Figueroa Certified By: James K. Shinneman, P.E. Date: 17 October 2008 10505 N. College Avenue IndiunapolfsJN 46?80 wcihc net 3171846-6611 8001 d52-Gd08 Fax: 3171843-OSd(, Allan li_ Weihe, P.F._ L.S. -President L~' 0 Definitions BMP.- Best management practices refer to structural or non-structural measures designed for the benefit of water quality and quantity. BMP owner- The owner of the BMP, typically the property owner. The BMP owner may also be the lessee of property in the case oflong-term leases of commercial and industrial zoned properties. The lessee is considered the BMP owner only if the lease specifically states that construction by the lessee must meet applicable local codes and regulations. Purpose and Specific Narrative ' Owner Contact Information:. AMCON Design and Consultants 20633 Watertown Court, Suite 200 ' Waukesha, WI 53186 Contact Name: Chris Kloiber Tele - (262) 707-9944 Fax - (262) 707-9510 Urban stormwater runoff contains many types and forms of pollutants. When compared ' to stormwater run-off from pre-developed conditions, high concentrations and some contaminants that are not naturally present in surface runoff from undeveloped local lands are found, Runoff from undeveloped watersheds contains metals, nutrients, ' sediment particles, oxygen-demanding compounds, and other constituents. Once developed, constituent loads increase because surface runoff volumes increase and the sources of many of these pollutants also increase. Supplemental applications of ' compounds, such as fertilizers, also tend to increase the availability of some pollutants to stormwater runoff. ' Runoff water quality in urban areas can be extremely detrimental to iota] habitat. Paved surfaces and standing water bodies for stormwater management control elevate the temperature of water entering streams. Chemicals in standing water and ponds are ' oxidized, resulting in depressed levels of dissolved oxygen. Increased runoff volumes and rates create scour and deposition damage to instream habitat. Activities in urbanized areas, such as vehicular traffic, deposit pollutants such as heavy metals and oil & grease on paved surfaces where they easily wash off into the streams . ' Best management practices (BMPs), both structural and non-structural, can reduce the amount of ollutants in stonnwater -p . 1 1 ' Owner Acknowledgment This Operation and Maintenance Manual is submitted to the Hamilton County with the intent to insure the longevity and adequate functioning of the BMP owned by AMCON Design and Consultants for Firestone Service Center -Carmel. By submitting this Operation and Maintenance Manual to the Hamilton County's Office the BMP owner ' noted above agrees to follow and abide by the inspection schedule and maintenance activities listed in this manual. The BMP owner noted above is responsible for any additional maintenance and/or repair activities to maintain the function and longevity of the BMP(s). ' Owner Signature: Date Printed STATE OF INDIANA ) ' ) SS: COUNTY OF HAMILTON ) BEFORE ME, the undersigned, a Notary Public in and for said County and State, personally appeared Owners,/Agent, subscribed and sworn before me this day of County of Residence Signature Commission Expiration Date Printed Name 1 1 t L ~ ~ ~ ~ ~ ~ ~ ~ S~ Cri 0 ~~ m A D G 3 1 1 1 1 Owaer's MaaruaZ Stonnceptorg Owner's Manual Contents L Stormceptor Overview 2. Stormceptor System Operation 3. Identification of Stormceptor 4. Stormceptor Maintenance Guidelines 4.1 Recommended Maintenance Procedure 42 Disposal of Trapped Material from Stormceptor 5. Recommended Safety Procedures 6. Stormceptor Monitoring Protocol 61 Pollutants to be Monitored 6.2 Monitoring Methodology I Page List of Tables Table 1. Stormceptor Dimensions 4 Table 2. Stormceptor Capacities 5 1`able 3. Sediment Depths Indicating Required Maintenance 5 Table 4. Monitoring Pollutants 9 List of Figures Figure 1. Single Inlet/Oudet "Disc'' Insert In-Line Stormceptor 6 Figure 2. STC 4~Oi Inlet Stormceptor 6 Rev.3/2006 Rinker Materials etivw.rinlcerstormceptor.com 1 L~ Ownm•'s Mmcual Page 2 1 Thank You! We want to thank you for selecting the Stormceptor System to use in your efforts in protecting the environment Stormeeptor is one of the most effective and maintenance friendly storn~ water quality treatment devices available. If you have any questions regarding the operation and maintenance of the. Stormceptor System, please call yow' local Rinker Materials representative, or the Stormceptor Information Line at (80U) 909-7763. L ,Stonncepdor Overview ' The Stormceptor System is a water quality device used to remove total suspended solids (TSS) and free oil (TPH) from storm water run-off. Stormceptor takes the place of a conventional manhole or inlet structure within a storm drain system. Rinker Materials manufactures the Stormceptor System with precast concrete components and a fiberglass disc insert. A fiberglass Stormceptor can also he provided for special applications. ' The Stormceptor System product line consists of four patented designs: The In-Line (Conventional) Stormceptor, available in eight model sizes rangins from 900 to 7200 gallon storage capacity. ' :Sn In-Line (Series) Stormceptor is available in three model sizes ranging from 11.000 to 16,000 gallon storage capacity. • The Submerged Stormceptor, an in-line system designed for oil and sediment removal in partially ' submersed pipes, available in all models sizes ranging from 4d0i to 16.000 gallon storage capacity. The Tnlet St:onnceptor is a 450 gallon unit designed Cor small drainage areas. ' Stormceptor removes free oil and suspended solids from stornt water preventing hazardous spills and non-point source pollution from entering downstream lakes and rivers. Rinker Materials and its affiliates market and manufacture the Stormceptor System in the United States and Australia. Several thousand Stormceptor Systems have been installed in various locations throughout North America, Australia and the Caribbean since 1990. ' In the Stormceptor, a fiberglass insert separates the treatment chamber from the by-pass chamber. The different insert designs are illustrated in Fisures 1 and 2. These designs are easily distinguishable from the surface once the cover has been removed. There are four versions of the in-line disc inset: siusle inlet/outlet, multiple inlet, in-line series inset and submerged designs. In the non-submerged "disc'' design you will be able to see the inlet pipe, the ' drop pipe opening to the lower chamber, t7ie weir, a 6" oil inspection/cleanout pipe, a large 24" riser pipe opening offset on the outlet side of the svucture, and the outlet pipe from the unit. The weir will be around the 24" outlet pipe on the multiple inlet disc insert and on large diameter pipe ' applications. The STC (series) Stotmceptors consist of two chambers comprised of simile fiberglass inserts. These units also contain a 6" oillinspection cleanout pipe and 24° outlet riser' pipes. The submerged disc insect has a higher N+eir and a second inlet drop pipe. In the inlet design you will be able to see an inlet drop pipe and an outlet riser pipe as well as a cenval oil ' inspection/cleanout port.. ' Rinker Materials w•cvw.rinkerstormceptor.com 1 Owner's Manual Page 3 1 1 2. Stormce to nr•,S•vs/em O ern abort The Stormceptor consists of a lower treaunent chamber, which is always full of water, and a by-pass chamber. Storm water flows into the by-pass chamber via the storm sewer pipe or grated inlet (Inlet Stormceptor). Normal flows are diverted by a weir and drop pipe arrangement into a treatment chamber. Water flows up through the submerged outlet pipe based on the head at the inlet weir and is discharged back into the by-pass chamber downstream of the weir. The treated storm water continues down stream via the storm sewer system. ' Oil and other liquids with a specific gravity less than water rise in the treatment chamber and become trapped render the fiberglass insert. Sediment will settle to the bottom of the chamber by gravity. The circular design of the treamrent chamber is critical to prevent turbulent eddy currents and to promote ' settling. During infrequent high flow conditions. storm water will by-pass the weir and he conveyed to the outlet sewer directly. The by-pass is an integral part of the Stormceptor since other oil/grit separators have been noted Co scour durine high flow conditions (Schueler and Shepp, 19)3). Por further details please refer to The Stormcepor System Technical Manual. The l:ey benefits of Stormceptor include: • Capable of removing more than 80% of the total sediment load when properly applied as a source control for small drainaee arras ' Removes free oil from storm water during normal flow conditions ~'v'ill not scour or resuspend trapped pollutants • Idea] spill control device for commercial and industrial developments • Vertical orientation facilitates maintenance and inspections • Small foot print 3. ldeniification of Stormceptor All In-Line (includine Submerged) Stormceptors are provided with their own frame and cover. ' The cover has the name STORMCEPTOR clearly embossed on it to allow easy identification of the unit. The name Stormceptor is not embossed on the- inlet models due to the variability of inlet grates used/approved across North America. 1'ou will be able to identify the Inlet Stormceptor by looking into the grate since the insert will be visible. Once you have located a unit, there still may be a question as to the size of the unit. Comparing the measured depth from the water level (bottom of insert) to the bottom of the teal: with Table I should help determine the size of the unit. 1 1 1 Rie{:er Materials t~M~w.rinkerstormceptor.com Owner's Manual 1 1 1 Table 1. Stormceptor Dimensions* Model Pipe Invert to Top of Base Slab 4501 60" 900 55" 1.200 71 " 1.800 105" 2400 94" 3600 134" 4soo 12s" 6000 I50" 7200 134" 11000s 128"** 13000s I50"** 16000s 134"** * Depths are approximate ** Depths per structure 4 Starting in 1996, a metal serial number tag has been affixed to the fiberglass insert. If the unit does ' not have a serial number. or if there is any uncertainty regarding the size of the Stormceptor using depth measurements, please contact the Rinker Materials Stormceptor information line at (800) 909-7763 for assistance. 4. Stormceptor Mai~nteraance Guidelines The performance of al] storm water quality measures that rely on sedimentation decreases as they fill with sediment (See Table 2 for Stormceptor capacities). An estimate of performance loss can be made from the relationship between performance and storage volume. Rinker Materials recommends ' maintenance be performed when the sediment eolume in the unit reaches 15% of the total storage. This recommendation is based on several factors: • Sediment removal is easier when removed on a regular basis (as sediment builds up it compacts and solidifies making maintenance more difficult). • Development. of a routine maintenance interval helps ensure a regular maintenance schedule is followed. AIU~ouah the frequency of maintenance will depend on site conditions, it is estimated that annual maintenance will be required for most applications; annual maintenance is a routine occurrence which is easy to plan for and remember. ' A minimal performance degradation due to sediment build-up can occur. In the event of any hazardous material spill, Rinker Materials recommends maintenance be performed immediately. Maintenance should be performed by a licensed liquid waste hauler. You should also notify the appropriate regulatory a?encies as required. Rinker Materials wrn~w.rinkerstnrmceptoccom 1 h1 LJ 1 i C~ 1 1 1 OH~ner's Manual Table 2. Stormceptor Capacities Model Sediment Capacity ft' (L) Oil Capacity US gal (L) Totat Holding Capacity US gal (L) 4501 45 (L76) 86 (326) 470 (1779) 900 75 (2135) 251 (950) 952 (3604) 1200 113 (3202) 251 (950) 1234 (467]) 1800 193 (5470) 251 (950) 1833 (6939) 2400 155 (4387) 840 (3180) 2462 (9320) 3600 323 (9134) 840 (3180) 3715 (14063) 4800 465 (]3158) 909 (3441) 5059 (19150) 6000 609 (]7235) 909 (3441) 6136 (23227) 7200 726 (20551) 1059 (4009) 7420 (28088) IIOOOs 942 (26687) ~ 2797 (10588)* 11194 (42374) 13000s 1230 (34841) 2797 (10588)* 13348 (50528) ]6000s 1470 (41632) 3055 (11564)* 159]8 (60256) * Total both structures combined 4.1 Recommended Maintenance Procedure For the "disc" design, oil is removed through the 6" inspection/cleanout pipe and sediment is removed t}u~ough the 24" diameter outlet riser pipe. Alternatively, oil could be removed from the 24" opening if water is removed from the treatment chamber, lowering the oil level below the drop pipes. The depth of sediment can be measured from the surface. of the Stormceptor with a dipstick tube equipped with a ball valve (Sludge Jude"). It is recommended that maintenance be performed once the sediment depth exceeds the guideline values provided in Table 3 for the reasons noted in Section 4.0 Stormceptor Maintenance Guidelines. Table 3. Sediment Depths Indicating Required Maintenance Model Sediment Depth* 4501 8" 200 mm) 900 8" (200 mm) ] Z00 10" (250 mm) 1800 15" 375 mm) 2400 12" (300 mm) 3600 ]7" (425 mm) 4800 15" (375 mm) 6000 18" (450 mm) 7200 1 S' (375 mm) 11000s 17" 425 mm)** ]3000s 20" (500 mm)** 16000s ]7" (425 mm)** * Depths are approximate ** In each sn-ucture Rini:er Materials wM~w. rinkerstormceptor.com Owner's Manual No entry into the unit is required for routine maintenance of the Inlet Stormceptor or the smaller disc insert models of the In-Line Stormceptor. Entry to the leve] of the disc insert may be required for servicing the larger disc insert models. An}~ potential obstmetions at the inlet can be observed from the surface. The fiberglass insert has been designed as a platform for authorized maintenance personnel in the event that an obstruction needs to he removed. Typically, maintenance is performed by the Vacuum Service Industry, a well established sector of [he service industry that cleans underground tanks, sewers, and catch-basins. Costs to clean a Stormceptor will vary based on the size of the unit and transportation distances. If you need ' assistance for cleaning a Stormceptor unit. contact your local Rinker Materials representative, or the Stormceptor Information Line at (800) 909-7763. ' Figures l and 2 will help illustrate the access point for routine maintenance of Stormceptor. J L i Sed'uncnt and ail r-hC--'-~A Oil removal can be rcnmval can be performed by vacuum wcA perforated by vacuums _ xz'fl~t ~ through ehe~ oil/inspection port llisc Insert Concrete Stormceptor Figure 1 Single Inlet/Outlet '`Disc'' Insert In-Line Stormceptor INa Grate Ol Pnrt Inlet Insect Removable Tee hiaintenance Figure 3 STC 4501 Inlet Stormceptor 6 Rinker Materials H'N~N. rinkerstormceptor.cam Owner's Manual Page S 4.2 Disposal of~ved A9aterial,fi~nnz Stormre~rtor The regmrements for the disposal of material from Stormceptor are similar to that of any other Best Management Practices (BMP). Local euidelines should be consulted prior to disposal of the separator contents. ' hr most areas the sediment, once dewatered, can be disposed of in a sanitary landfill. R is not anticipated that the sediment would be classified as hazardous waste. 1n some areas, mixing the water with the sediment will create a slurry that can he discharged into a trunk sanitary sewer In ' al] disposal options, approval from the disposal facility operator/agency is required. Petroleum waste products collected in Stormceptor (oil/chemical/fuel spills) should be removed by a licensed waste management company. ' R'hat if I see an oil rainbow or sheen at the Stormceptor outlet? With a steady influx of water with high concentrations of oil, a sheen may be noticeable- at the Stormceptor outlet. This may occur because a rainbow or sheen can be seen at very small oil concen- trations (< 10 ppm). Stormceptor will remove over 95% of all free oil and the appearance of a sheen ' at the outlet with high influent oil concennatious does not mean that the unit is not working co this level of removal. In addition, if the influent oil is emulsified, the Stormceptor will not be able to remove it. The Stormceptor is designed for free oil removal and not emulsified or dissolved oil ' conditions. 5.0 Recmnmended Safety Procedarec Rinker Materials strongly recommends that any person who enters a Stormceptor System follow ' all applicable OSHA regulations for entry in permit required confined spaces, as outlined in 39 CFR 1910.146. A permit required confined space consists of a space that: ' is large enough and so configured that an employee can bodily enter and perform assigned work. Has limited or restricted means for entr}' and exit. • Is not designed for continuous employee occupancy. • Contains or has one of the following: - a potential to contain a hazardous atmosphere. - a material that has the potential for engulf rig an entrant. ' -any other recognized serious safety hazard. Storm water and wastewater systems fall under OSHA guidelines for a permit required confined space. Failure to follow OSHA guidelines for entry and work in a permit requhed confined space can result in serious injury or death. Please exercise extreme caution and follow appropriate L.. safety procedures when entering any confined space. Two square pick holes in the cover vent the Stormceptor, allow for removal of the cover, and provide sampling ports for air quality morutorino before the cover is removed. If you must enter the Stormceptor, please note that if the disc insert inside is wet, it can he slippery. . Rinker MateriaFs Nrn~w. rinkerstormceptor.com 1 1 ~J Owner's Manual Recv_nizin; that every work site is different, the responsibility for safety falls on the contractor. The contractor must ensure that all employees and subcontractors follow established safety procedures and OSHA regulations for working in and around permit required confined spaces as well as for any other safety hazard that ma}' be present on that particular site. 6.0 Stornzcentor Monitorr~ng Protocol If monitoring of your Stormceptor System is required. we recommend you follow the procedures outlined below by the Rinker Materials Stormceptor office. If you have any questions regarding monitoring please contact the. Rinker Materials Stormceptor Product Manager at (800) 909-7763. 61 Pollutants to he Monitored Table 4 indicates the pollutants to be monitored during the storm events and the minimum acceptable ' detection limit for each polhitant to be analyzed. Approved federal or state laborator}~ analysis methodologies are to be used for the analysis. ' The optional metals indicated in Table 4 refer to the Resource Conservation Recovery Act and may be covered by a genenc metals scan. Bacteria monitoring will not be required unless explicitly requested elsewhere. ' Two sediment samples are to be extracted from the monitored Stormceptor at the end of the study and analyzed for the particle size distribution and water content. A minimum of 8 U.S. sieve sizes should ' be used to determine the particle size distribution. Sieves that are used must include, but are not limited to 3~, 60, 100, 140,'1.00, 270 and 400. Three clay particle sizes must be analyzed to denote particle sizes between 5 and 25µm. The particle size distributions should be plotted on a standard ' grain size distribution graph. 1 1 1 Pinker Materials H~~w. r i n k e r s t o r m c e p t o r. c a m 1 O>,~ner's Manual J 1 J 1 1 ' 6.2 Table 4. Monitoring Pollutants Pollutant Minimum Detection Litnit MDL Total Sus ended Solids TSS) 5 m~/1 Total Phosphorus (P) 0.02 me/1 Total K'eldahl Niti-o~en TKI~ 0.1 me/1 Copper (Cu) 0.001 me/1 Cadmium (Cd) 0.005 me/1 Lead (Pb) 0.05 mJl Zinc (Zn) 0.01 me/] Chromium (Cr) 0.01 me/1 Total Petroleum Hydrocarbons (TPH) I mg/I Conductivity 0.1 µmho/cm Fecal Coliform* I/100 ml Additional Metals (optional) Arsenic (As) 0.005 mg/1 Barium (Ba) 0.01 mg/1 Mercury (Hg) 0.0005 mJl Selenium (Se) 0.00 mg/t Silver (Ag) 0.01. rng/1 * Only if explicitly requested in Terms of Reference Monrtorirzg Alethoddny,X The following monitoring protocol should he followed to ensure reasonable monitoring results and interpretation: 9 • Monitoring protocols should conform to EPA 40 CFR Part 136. • The EPA guideline of 72 hours dry period prior to a monitoring event should be used. This will ensure that there is sufficient pollutant build-up available for wash-off during the monitored event. • Flow proportional monitoring must be conducted for the parameters indicated in Table 1. Samples should be analYZed separately for the first flush versus the remainder of the storm event_ Monitoring need not extend longer than an 8-hour period after the starC of the storm event (composite). • Sediment sampling (measuring the sediment depth in the mtit at the beginning and end of the monitoring period) must be conducted. The water content of the sediment layer must be analyzed to determine the dry volume of suspended solids. Sediment depth sampling will indicate the rate of pollution accumulation in the unit. provide confirmation that the unit is not scouring and confirm the flow proportional monitoring results. Amass balance using the sediment sampling should be calculated to validate the flow proportional sampling. Rini.er Materials vm•w.rinherstormceptor.com 1 1 J J 1 1 1 1 1 1 O>t~ner's Manua! pap¢ 1 p • Grab sampling (just taking samples at the inlet and oudet) is an unacceptable methodology for testing the performance of the Stormceptor during wet weather conditions unless it is'flow weighted (flow weighted composite sample from numerous grab samples) over the entire storm. • The oil containment area underneath the insert should be inspected via the vent pipe for dry weather spills capture once a month during the monitoring period since the flow rate of a dry weather spill may not trigger the automated samplers. • A tipping bucket rain gauge should be installed on-site to record the distribution of storm intensities and rainfall volume during the monitored events. • Results that ate within the laboratory en~or (both inlet and outlet) or are representative of relatively clean water should be discarded. Typical concentrations of pollutants in storm water are: TSS 700 mg/L Total P 033 mg/L TKI~t 1.50 mg/L Total Cu 34 µg/L Total Pb 144ytg/L Total Zn 160 µg/L A threshold first flush/composite TSS value of ~0 mg/L al the inlet to the Stormceptor should be used as the lower limit of an acceptable storm for reporting event efficiency. Monitorin, results where the influent TSS concenvation is less than ~0 mg/L should only be used in mass load removal calculations over the entire monitoring period with other storms where the influent concentration is greater than 50 mg/L. The results should not be analyzed if the influent TSS concentrations during all monitored storms are less than 50 mg/L. Storms where the influent TSS concentration is less than 10 mg/L should be discarded from all analyses. • A threshold storm event volume equal to l .5 times the storage volume of the Stormceptor being monitored should be used as the lower limit of an acceptable storm for monitoring. • Sampling at the outlet of the Stormceptor should be conducted within the 24" outlet riser pipe to accurately define event performance. • The personnel monitoring the Stormceptor should record incidental information in a log file. Information such as weather, site conditions, inspection and maintenance information, monitoring equipment failure. etc. provide valuable information that can explain anomalous results. • Laboratory results of monitored samples should be analyzed within 10 days of being submitted to the lab. • Weekly inspections of the sampling tubes, flow meter, rain gauge, and quality samplers should be conducted to ensure proper operation of the monitoring equipment. Debris and sediment that collects around the sampling intakes should be cleaned after each event. • During the installation of automated quality samplers, care should be exercised to ensure that representative samples will be extracted (placement of intakes, ensuring that tubing is not constricted or crimped). • Sampling should be conducted for a minimum of 6 storms. Ideally IS storms should be sampled if the budget allows. Rinker Materials N~-w. rinkerstarmceptor.com 1 1 1 1 1 1 Call the Stormceptor Information Line (500-909-7763) for more detailed informa- tion and test results. STECfIMCALINFURMATION' `-`~ Storm pior CU ROn9 ~ a Y r ~+'~y~: 3Smimceptiwr Technical ~4anual Stormcep'ior Inslallahon Grade ~~ ~t: ~" Stormce for Brochure.: °s " j ~,~„~ , ;;TEST RESULTS >, :: e it rSTEP.Repbrt k'r" ~ ~ ~, u"S (Indepentlent Venficanon) } ~'~ - .~ ~ ~` pit: r;_~ti s '~ ~„ Unnersi[•;of Coventry Study ~ t+2* ~ ~ ETU Can;ida (Fcdtral ~Vcrficauon) °u~ t. Aanonz]~R`a[er Resee ch Insiitute.Test,; t i ,p GT`i'V y x9a t IRe i --n`Wcstuooii'MAhield'Monnonn,tr Studs rj- `~ -(; s ~ ;, hdmotil'o"n', Canada Ficlil Mom[onng`; '' ~, Study z z ~°,' ~' Sc,attle•rteld Nktminmii~ °' "' ~'~- Como ParF. MN FteldMomto m ~" ;. ~ Study ±"° _ ~ ; ~ , ~~ ,w. ' F•lortda`'Atlanttc Um~erstq Submersed`-: S StormceptorTrsnn~r ~~ , Od Rem~Jal Field ~alidahon Sludee'Aiiahses and=Panicle Sizej. Anah ses:'.,~ r .. a`.~« s- `..tit? r~ 8_"a. [~ - `` ~ -nT~ 6E M.rr.,.,~- 6560 Lanefield Rd., Bldg. 3 Houston, T% 77092 Phone: 832-590-5300 tax: 832-590-5399 Toll Free: 800-909-7763 wu-w.ri nke~storniceptor.com ~200G Rinker b7a~eriaU Cary. ncv. i?W5 s r~~.4T_R~A~S,~ Concrete Pipe Division STC 900 Precast Concrete Stormceptor (900 U.S, Gallon Capacity) Stormceptor 32"0 Frame and Cover ~~~~~ ' Grade Adjusters to I I I '~ Suit Finished Grade 5~~ .. ~ ~ 24"H Outlet ' ~ ~ 6"0 Oil Pipe $ ^~ a `. 30"O Port 6"H Orifce Plate ' ~ a 72"0 a 6.. ° 7„ <. Vanes Stormceptor ' __________ Insert ~ - - ~ I Outlet ------ / ------- Inlet Outlet - ---- ------- Inlet Weir ~ ------ ~ 6"0 I ° ' a ___L__ Orifice ~ Plate a 55" .Access opening 6"~ Oil ' Min. Drop Tee a (See note #2) Port Inlet Pipe 24"0 Drop ' ~ 8,~ Outlet Pipe Plan View <. $~~ ° d ~ 1 a I ' Section Thru Chamber ' Notes: 1. The Use Of Fle~:ible Connection is Recommended at The Inlet and Outlet Where Applicable. 2. The Cover Should be Positioned Over The Outlet Drop Pipe and The Oil Port. 3. T'ne Stormceptor System is protected by one or more of the following li.S. Patenis: #4986148; ' #64.9833E T6726760;-6763i16;~6849181;-6068766;#6371690. ^. Conact a Concret~° Pipe Divrsion representzr~~e for fu,zher details not listed on this drzwin.R. Rinker 038 m!x `~.ermrW~Mr u..nti ti~ ~~ o J ,~^ / \\\ y /,\\ \ ~ ~~ ~ n , t` ~ ~ ~, \\~ .~ \~~ o~~ \~ \~ ~~ \~ ~~~\ ~~\ ~'~ `~~ 2 `~~ ..a ~~ J~~\1 O ~_.~ ~~ 1~ ~~ ~ r, ~~ ~ \ a`'tf ~O \\~ \ y \ \ i L~ \~ Gv -' ... 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