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HomeMy WebLinkAboutO&M Manual Stormwater Operations and Maintenance Manual Courtyards of Carmel, Sec. 1 Carmel, IN Prepared for: Epcon Communities, Inc. 500 Stonehenge Parkway Dublin, Ohio 43015 Prepared by: Kimley-Horn and Associates, Inc. 250 East 96th Street, Suite 580 Indianapolis, Indiana 46240 Contact: Brett A. Huff I affirm, under penalties for perjury, that I have taken reasonable care to redact each Social Security number in this document, unless required by law. – Brett A. Huff Prepared on: February 17, 2021 Revised on: April 7, 2021 Revised on: August 12, 2021 Water Quality BMPs Water Quality Best Management Practices (BMPs) are vegetative, structural, and other measures that reduce or eliminate pollutants that might otherwise be carried by surface runoff. Potential pollutant sources include litter form patrons and automobile fluids on the pavement including heavy metals, oil, grease, and alcohols. The stormwater for the site drains via shallow and concentrated flow to a proposed storm network that outlets into a wet detention pond. Wet detention ponds are designed with outlet control structures that slow the release of the stormwater. This allows pollutants and sediment to settle out prior to stormwater leaving the detention area. BMPs for Courtyards of Carmel Section 1 will include: 4 sump structures with Snouts at Str. #’s 506, 509, 520 and 546. Wet Detention Ponds #1 and #2 Wetland Plantings in Pond #1 Dry Basin See Attachment A for a BMP Location Map for this project. BMP Owner Contact Information and Billing Contact Name: Courtyards of Carmel Home Owner’s Association Contact: Brooks Longfellow Address: 500 Stonehenge Parkway, Dublin, OH 43015 Business Phone Number: 317-507-0328 Party Responsible The BMP owner agrees to pay all the fees required by the City of Carmel, including annual inspection fees, and/or any additional fees required. Routine inspections are the responsibility of the BMP owner. Maintenance is also the responsibility of the owner. The City of Carmel must be notified of any changes in BMP ownership, major repairs, or BMP failures in writing within 30 days. The letter should be addressed to: Storm Water Program Carmel Engineering Dept. One Civic Square Carmel, IN 46032 In the event that the City of Carmel finds a BMP in need of maintenance or repair, the City of Carmel will notify the BMP owner of the necessary maintenance or repairs and give the BMP Owner a timeframe for completing the maintenance or repairs. If the maintenance or repairs are not completed within the designated timeframe, the City shall perform the repairs or maintenance and bill the BMP Owner the actual cost of the work. Submittal of annual inspection reports to the City of Carmel Engineering are due one year after construction is completed, with subsequent reports due each year within the same month of the initial report, any deficiencies found during the inspections should be addressed, and the BMP owner faces enforcement action from the City if the inspection report is not received within the month it is due, if there are deficiencies which were not included in the report, or if any deficiencies included in the report are not addressed in a timely manner. Material Handling Disposal of waste from maintenance of drainage facilities shall be conducted in accordance with federal, state, and local regulations. Removed sediment must be handled and disposed of in the garbage as solid waste. Water should be disposed of in a sanitary sewer after oils are removed using oil absorbent materials or other mechanical means. Used oil absorbents should be recycled or disposed according to the manufacturer’s instructions. Safety Work inside underground structures requires special OSHA-required confined space equipment and procedures. The most practical option to perform maintenance or repairs is to contract with a sewer- cleaning contractor Storm Structure Maintenance and Inspection Storm structures on site are identified within the construction plans set. Storm structures are set at storm sewer pipe connections. Unless you have OSHA approved training and equipment, never enter a manhole. Inspection and maintenance of all storm structures is required per the table below. Storm Structure Maintenance and Inspection Inspection All inlet castings should be inspected every 6 months and after each major rainfall event. More frequent inspections should be performed in areas where there is higher potential for trash or litter and during the fall when leaves are present on the ground. Check the frame and lid for cracks and wear, such as rocking lids or lids moved by traffic. Storm structures and the surrounding areas should be inspected annually for pollutants such as leaks from dumpsters, minor spills, and oil dumping. Take action to have the pollutant source removed. Cleaning Clean structures when there is a blockage of a water flow path or when sediment depth reaches 10% of the pipe diameter. Cleaning should be performed in a way that ensures removed sediment and water is not discharged back into the storm sewer. Materials Handling Disposal of waste from maintenance of drainage facilities shall be conducted in accordance with federal, state, and local regulations. Removed sediment must be disposed in the garbage as solid waste. Water should be disposed of in a sanitary sewer after oils are removed using oil absorbent materials or other mechanical means. Used oil absorbents should be recycled or disposed according to the manufacturer's instructions. Repairs Repair all security and access features so they are fully functional. This includes locking lids, covers, and ladder rungs. Replace broken parts or lids that rock or are moved by traffic. Storm Sewer Maintenance and Inspection Storm sewer pipes convey stormwater. Pipes are built from many materials and are sometimes perforated to allow stormwater to infiltrate into the ground. Storm pipes are cleaned to remove sediment or blockages when problems are identified. Storm pipes must be clear of obstructions and breaks to prevent localized flooding. Storm sewer maintenance and inspection required per the table below. Storm Sewer Maintenance and Inspection Inspection Pipes are difficult to inspect requiring special equipment and training. Usually, if a problem occurs the owner needs to call a sewer or plumbing contractor to inspect, repair or clean pipelines. Cleaning Clean pipes when sediment depth is greater than 10% of the pipe diameter. When cleaning a pipe, minimize sediment and debris discharges from pipes to the storm sewer. Install downstream debris traps (where applicable) before cleaning and then remove material. Generally, use mechanical methods to remove root obstructions from inside storm sewer pipes. Do not put root-dissolving chemicals in storm sewer pipes. If there is a problem, remove the vegetation over the line. Materials Handling Sediment and debris from pipes should be disposed in the garbage as solid waste. Pick out any rocks first. Repairs Repair or replace pipes when a dent or break closes more than 20 percent of the pipe diameter. Repair or replace pipes damaged by deterioration. Turf Vegetative Coverage All non-paved areas that are not landscaped shall be vegetated to prevent erosion and sediment buildup in storm sewer facilities onsite or downstream of the project site. Seed shall be reapplied as required to establish healthy, dense coverage. Detention Maintenance and Inspection Inspection of the proposed wet ponds is important for overall operation efficiency of the stormwater management system, stormwater quality, as well as identifying potential problems. The wet detention system should be inspected and maintained as follows: 1. Wet detention slopes and embankments: Inspect for erosion along pond surfaces at least twice a year. Inspect for embankment damage annually. Dry detention slopes and embankments shall be mowed as necessary and shall be clear of plants in excess of 5 inches in height. 2. Wet detention bottom: Inspect wet detention basin for sediment accumulation and dead or damaged ground cover annually. Remove sediments when storage volume is reduced by 25%. Sediments and waste shall be disposed of in accordance with the City of Carmel and any applicable state, and/or federal requirements. Additional information and a sample inspection checklist are available in Appendix B. Checklists should, at a minimum, address the items identified in this document. List of Attachments Attachment A: BMP Location Map Exhibit Attachment B: Construction Site Inspection and Maintenance Logs Right of Entry This Operation and Maintenance Manual is submitted to the City with the intent to ensure the longevity and adequate functioning of the BMPs owned by The Courtyards of Carmel Home Owner’s Association. By submitting this Operation and Maintenance Manual to the City of Carmel with plans to construct said BMPs, the BMP owner noted above grants personnel from the City of Carmel the right to enter the development to inspect and maintain the BMP. 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 BMPs. Owner Acknowledgement Signature Date Printed STATE OF INDIANA ) ) SS: COUNTY OF ____________ ) BEFORE ME THE UNDERSIGNED NOTARY PUBLIC, IN AND FOR THE SAID COUNTY AND STATE, PERSONALLY APPEARED _____________________ AND ACKNOWLEDGED THE EXECUTION OF THE FORGOING INSTRUMENT AS THEIR VOLUNTARY ACT AND DEED. WITNESS MY HAND AND NOTARY SEAL THIS _____ DAY OF ____________________, 2021. SIGNATURE: _____________________ PRINTED NAME: ___________________ MY COMMISSION EXPIRES: ______________ COUNTY OF RESIDENCE: _______________ Owner Acknowledgement Agreement (“Agreement”) For good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the undersigned owner (“Owner”) hereby submits this Operation and Maintenance Manual (“Manual”) to the City of Carme, Indiana (“City”) as a written acknowledgement of Owner’s warranty and agreement to institute, maintain, and follow the water quality Best Management Practices (“BMPs”) listed below, and to follow and abide by the inspection schedule and maintenance activities listed in this Manual. The Owner also hereby agrees to provide, at Owner’s cost, all additional maintenance, repair, and/or replacement services reasonably necessary to maintain the function and longevity of the BMPs from and including the date this Agreement is executed by Owner to and including the date on which a new Agreement is filed with the City by another party who assumes all the obligations and responsibilities of Owner as set forth herein. BMPs: __Wet Detention Ponds #1 and #2 along with Wetland Plugs in Pond #1____ __Dry Basin _______________________________________________________ ___Sump Inlets with Snouts (Str. #’s 506, 509, 519, 520 and 546 _____________ Owner Acknowledgement Signature Date Printed STATE OF INDIANA ) ) SS: COUNTY OF ____________ ) BEFORE ME THE UNDERSIGNED NOTARY PUBLIC, IN AND FOR THE SAID COUNTY AND STATE, PERSONALLY APPEARED _____________________ AND ACKNOWLEDGED THE EXECUTION OF THE FORGOING INSTRUMENT AS THEIR VOLUNTARY ACT AND DEED. WITNESS MY HAND AND NOTARY SEAL THIS _____ DAY OF ____________________, 2021. SIGNATURE: _____________________ PRINTED NAME: ___________________ MY COMMISSION EXPIRES: ______________ COUNTY OF RESIDENCE: _______________ Attachment A: BMP Location Map 1234567150C.A. #1-1C.A. #1-3C.A. #1-2AMENITY AREABLOCK "A"APPROVAL PENDINGNO T FO RCONSTRUCTION © THE COURTYARDS OF CARMEL BMP LOCATION MAPB3 NORTH Attachment B: Inspection and Maintenance Checklist 2'x2' LAKE 1 OUTLET STRUCTURE 531 DETAIL N.T.S. 2'x2' DRY BASIN OUTLET STRUCTURE 525 DETAIL N.T.S. PondSeries™ Aeration Systems PS10, PS20, PS30, PS40 & PS80 You have purchased the most efficient and cost-effective aeration system available on the market today! THANK YOU FOR CHOOSING The Airmax® Aeration SystemPondSeries™ Aeration Systems PS10, PS20, PS30, PS40 & PS80 MAX DEPTH 21’ OWNER’S MANUAL FOR: Watch & Learn | How-To Install Video airmaxeco.com/AirmaxAerationInstallation SECTION ENGLISH PAGE 1 System Components 3 2 System Installation 4-7 3 Initial Start-Up & Seasonal Operation 7 4 Maintenance 8 5 Troubleshooting 8 6 Replacement Parts / Accessories 9 7 Warranty 19 See Other Languages Online Important Safety Instructions Check with a qualified electrician or serviceman when the grounding instructions are not completely understood, or when in doubt as to whether the product is properly grounded. Do not modify the plug provided; if it does not fit the outlet, have the proper outlet installed by a qualified technician. For 120 VAC products: This product is for use on a nominal 120V circuit, and has a grounding plug similar to the plug illustrated in sketch A in Figure below. A temporary adapter similar to the adapter illustrated in sketches B and C may be used to connect this plug to a 2-pole receptacle as shown in sketch B when a properly grounded outlet is not available. The temporary adapter shall be used only until a properly grounded outlet (sketch A) is installed by a qualified electrician. The green colored rigid ear, lug, or similar part extending from the adapter must be connected to a permanent ground such as a properly grounded outlet box cover. Whenever the adapter is used, it must be held in place by a metal screw. For 230 VAC products: This product is for use on a circuit having a nominal rating more than 120 V and is factory-equipped with a specific electric cord and plug for connection to a proper electric circuit. Only connect the product to an outlet having the same configuration as the plug. Do not use an adapter with this product. When the product must be reconnected for use on a different type of electric circuit, the reconnection shall be made by qualified service personnel. • Read all operating instructions carefully. • To reduce the risk of electric shock, connect only to a properly grounded, grounding-type receptacle. If in doubt, have the outlet checked by a qualified electrician. • This unit is to be used in a circuit protected by a ground fault circuit interrupter (GFCI). • Disconnect unit from power source before handling or maintenance. • Repair or exchange of cable/power cord must be carried through by the supplier/manufacturer. • This unit has not been investigated for use in swimming pool areas. CAUTION • Never connect to an extension cord. This may result in equipment failure. • Do not allow anything to rest on the power cord. • Do not place the cabinet where people may step on the power cord. • Never override or “cheat” electrical or mechanical interlock devices. • Never attempt any maintenance function that is not specified in the user manual. • Never operate the system if unusual noises or odors are detected. Disconnect the power cord from the outlet and call for service. GROUNDING INSTRUCTIONS – This product must be grounded. In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electric current. This product is equipped with a cord having a grounding wire with an appropriate grounding plug. The plug must be plugged into an outlet that is properly installed and grounded in accordance with all local codes and ordinances. WARNING – Improper installation of the grounding plug is able to result in a risk of electric shock. When repair or replacement of the cord or plug is required, do not connect the grounding wire to either flat blade terminal. The wire with insulation having an outer surface that is green with or without yellow stripes is the grounding wire. Consignes de Sécurité Importantes FRANÇAIS Consultez un électricien ou un réparateur qualifié lorsque les instructions de mise à la terre ne sont pas complètement comprises ou en cas de doute quant à savoir si le produit est correctement mis à la terre. Ne pas modifier la fiche fournie; si elle ne correspond pas à la prise, faites installer une prise adéquate par un technicien qualifié. Pour 120 produits VAC: Ce produit est destiné à être utilisé sur un circuit nominal de 120V, et a une fiche de mise à la terre semblable à la fiche illustrée par le croquis A dans la figure ci-dessous. Un adaptateur temporaire semblable à l’adaptateur illustré dans les esquisses B et C peut être utilisé pour brancher cette fiche à une prise à 2 pôles comme indiqué dans le croquis B si une prise de terre ne est pas disponible. L’adaptateur temporaire doit être utilisé que jusqu’au une prise de terre (schéma A) est installé par un électricien qualifié. Le vert coloré oreille rigide, cosse, ou une partie similaire se étendant de l’adaptateur doit être connecté à une terre permanente comme un couvercle de la boîte de prise de terre. Chaque fois que l’adaptateur est utilisé, il doit être maintenu en place par une vis en métal. Pour 230 produits VAC: Ce produit est pour une utilisation sur un circuit ayant une puissance nominale supérieure à 120 V et est équipé en usine avec un cordon électrique spécifique et branchez pour la connexion à un circuit électrique approprié. Seulement connecter le produit à une prise ayant la même configuration que la fiche. Ne pas utiliser un adaptateur avec ce produit. Lorsque le produit doit être reconnecté pour une utilisation sur un type de circuit électrique différente, la reconnexion doit être faite par du personnel qualifié. • Lisez toutes les instructions attentivement. • Pour réduire le risque de choc électrique, connectez uniquement à une mise à la terre, de terre réceptacle. En cas de doute, faites vérifier la prise par un électricien qualifié. • Cet appareil doit être utilisé dans un circuit protégé par un disjoncteur de fuite de terre (GFCI). • Débrancher l’appareil de la source d’alimentation avant de la manipulation ou de maintenance. • Réparation ou l’échange de câble / cordon d’alimentation doivent être menées à bien par le fournisseur / fabricant. • Cet appareil n’a pas été étudiée pour une utilisation dans des zones de baignade de la piscine. ATTENTION • Ne jamais se connecter à une rallonge. Cela peut entraîner une défaillance de l’équipement. • Ne laissez rien reposer sur le cordon d’alimentation. • Ne pas placer l’armoire où les gens peuvent marcher sur le cordon d’alimentation. • Ne jamais déjouer ou «contourner» les dispositifs de verrouillage électriques ou mécaniques. • Ne tentez aucune opération de maintenance qui ne est pas spécifié dans le manuel utilisateur. • Ne faites jamais fonctionner le système si des bruits ou des odeurs inhabituelles sont détectées. Débranchez le cordon d’alimentation de la prise et appelez le service. INSTRUCTIONS DE MISE – Ce produit doit être mis à la terre. Dans le cas d’un court-circuit électrique, la terre réduit le risque de choc électrique en fournissant un fil de fuite pour le courant électrique. Ce produit est équipé d’un cordon muni d’un fil de terre avec une fiche de terre. La fiche doit être branchée dans une prise correctement installée et mise en conformité avec tous les codes et règlements locaux. AVERTISSEMENT – Une installation incorrecte de la prise de terre est en mesure d’entraîner un risque de choc électrique. Lorsque la réparation ou le remplacement du cordon ou de la prise, ne pas connecter le fil de terre à aucune borne à lame plate. Le fil d’un isolant ayant une surface extérieure verte avec ou sans rayures jaunes, est le fil de mise à la terre.2 1 • Self-Weighted Airline: 3/8” 100’ Roll (#510118), 5/8” 100’ Roll (#510119): Lead-free weighted airline is made of durable PVC composite. Fish hook resistant and kink-free. Use from pond’s edge to diffuser. • Direct Burial Airline: 5/8” 100’ Roll (#510120) Flexible, yet kink-free. Bury from cabinet and compressor to pond’s edge when placing the cabinet and compressor away from the pond. 1. System Components EasySet™ AIRLINE 1. Enhanced Cooling System tunnels air flow evenly through the cabinet with a high flow cooling fan 2. Composite cabinet with removable top protects components while providing easy access 3. Elevated base protects against damaging flood water 4. Pre-wired electrical box simplifies electrical connections for easy setup 5. Dual Air Filters – High density cabinet intake pre-filter and compressor air filter maximize the life of the system 6. Cabinet Lock Kit protects your investment from unwanted guests Cabinet Size: 23”L x 17”W x 15”H Cabinet Size: 27”L x 24”W x 18.75”H (PS80 Only) Airmax® Composite Cabinet * Depending on the type of installation, additional connector kits may be required. See section 6 for connector kits. SilentAir™ RP Series Rocking Piston Compressor SmartStart™ Technology: Protects compressor during pressurized restarts following power supply interruptions. 1. High efficiency, continuous-duty rocking piston compressor 2. Air Filter maximizes the life of the compressor 3. Rubber compressor mounts reduce noise and vibration for silent operation 4. Airflow manifold simplifies airflow management to individual diffusers 5. Heat-resistant 3 ⁄8” flex-tube protects against high temperatures of the compressor and braided hose sleeve protects against wear 6. Pressure gauge helps monitor system performance 7. Pressure relief valve safeguards from back pressure 8. Airline quick disconnects for easy system removal and storage Note: These systems are designed for ponds up to 21’ deep. Operating in depths greater than 21’ will require a Deep Water Kit. See section 6 for kits. ProAir™ 4 Weighted Diffuser 1. PTFE non-stick 6” membrane diffuser sticks provides the synergy of air stones while being virtually maintenance-free 2. Check valve prevents back pressure to compressor 3. Weighted design keeps diffuser submerged while maintaining an upright position during installation 2 1 3 Diffuser Size: 19”L x 19”W x 5”H 2 4 5 6 8 7 ENGLISH 3 SilentAir™ with SmartStart™ Technology 1 2 4 Cabinet Lock Kit6 5 3 3 2. System Installation ENGLISH HP Running Amps Volts Max CFM Power Cord Max Pond Size Max Depth*# Diffusers PS10 1/4 1.6 or 0.8 115V or 230V 2.3 6'1 Acre 50'1 PS20 1/2 4.1 or 2.1 115V or 230V 4.7 6'2 Acres 50'2 PS30 1/2 4.1 or 2.1 115V or 230V 4.7 6'3 Acres 50'3 PS40 3/4 5.3 or 2.7 115V or 230V 5.8 6'4 Acres 50'4 PS80 3/4 (x2)10.6 or 5.3 115V or 230V 11.6 6'8 Acres 50'8 Tools Required: • Placement Rope • Utility razor knife • Level • Boat/Raft/Swimsuit • Small stone or gravel • Shovel • Rake • Flathead screwdriver • Permanent Marker • Coast Guard-approved life jacket Tech Specs: 1. Place the cabinet on the ground in the selected location and mark an area 6” wider than the base of the cabinet on all sides. *Ponds greater than 21’ will require a Deep Water Kit 2. Move the cabinet and remove the sod from the area, filling in with small stone or gravel. This allows for a firm base for the cabinet and for drainage. Open the aeration cabinet by unscrewing the 4 lobed thumb screws. Gently lift the cabinet lid and lay on its side next to the base. 3. Place the cabinet onto the stone base and use your level to make sure the cabinet is sitting secure and level. STEP TWO: Prepare the Ground Surface and Place the Cabinet See Video Instructions of the Airmax® Aeration System installation online at airmaxeco.com/PondSeriesAeration Option A Pond’s Edge Option B Away from Pond’s Edge If a power source is available near the pond’s shore, locate the cabinet at the pond’s edge for quicker installation. • Locate cabinet on a solid surface with adequate strength for the weight of the unit. • Locate cabinet away from irrigation sprinklers. • Cabinet must always remain above the high water mark. Ý Attention: For airline that runs longer than 100’, connector kits are required (sold separately). See Page 9. If a power source is not available near the pond’s shore or you would prefer to install the cabinet in another location, install Direct Burial Airline(s) (sold separately) from the cabinet’s location to the pond’s edge. Use a single airline from cabinet to shoreline with valves at pond’s edge. STEP ONE: Select a Location for the Aeration Cabinet Learn about installing an optional Remote Manifold Kit online at airmaxeco.com/RemoteManifold Option B with Remote Manifold 4 2. System Installation - Continued ENGLISH 2. Place airline into the trench from the aeration cabinet to the pond’s edge. Option A: Use EasySet™ weighted airline. There must be a separate run of airline for each diffuser that will be installed. Leave remaining airline coiled at the pond’s edge. Option B: Use Direct Burial airline. There must be a separate run of airline for each diffuser that will be installed. Join multiple sections of direct burial airline using 5/8” connector kits. First, slide two hose clamps onto one section of airline. Next insert the 5/8” insert adaptor half way into one section of airline and then insert into next the section of airline. Using a flathead screw driver, secure one of the hose clamps onto each half of the insert adaptor (see image on the left). Option B with Remote Manifold: Use 1” Direct Burial Airline or PVC Pipe. Only 1 run of airline is required from the cabinet location to the pond’s edge. See Remote Manifold Kit Manual or watch the installation video at airmaxeco.com/RemoteManifold for more information. Attention: For ponds deeper than 21’ deep, a Deep Water Kit (Sold Separately) must be installed before continuing with installation. Option A & B: (this step is not required if a Deep Water Kit is installed) Slide a hose clamp onto the airline and insert a 3/4” MPT to 3/8 (or 5/8”) Insert Reducer to into the airline, securing with a hose clamp. Next, hand tighten to one of the quick disconnect flex tubes coming from the compressor manifold. Repeat for each diffuser line. Option B with Remote Manifold: Refer to the Remote Manifold Kit Manual or watch the installation video at airmaxeco.com/RemoteManifold for more information. Backfill the airline trench in a few areas to temporarily keep the airline in place until installation is complete. STEP THREE: Excavate Trench and Place Airline(s) STEP FOUR: Connect Airline(s) to the Compressor Manifold STEP FIVE: Partially Backfill Airline Trench 1. Using your shovel, dig a trench from the cabinet to the pond’s edge. This trench should be a minimum depth of 8” to protect the airline. We recommend having utility lines marked before you begin digging. 5 2. System Installation - Continued ENGLISH Installing Diffusers from a Boat/Raft: Have one person on shore guiding the airline as a second person uses a boat or raft, extend the airline out to the area of the pond that the diffuser will be located. Gently release the diffuser into the water. Repeat until all diffusers are in position. Installing Diffusers from Shore: For smaller ponds you may choose to install the diffusers from shore. Have one person guide the airline while another walks around the pond with the diffuser. Then thread nylon rope through the diffuser manifold. Use the nylon rope and airline to gently guide the diffuser into place. Once set, release one side of the nylon rope and pull to shore. Repeat until all diffusers are in position. STEP NINE: Install the ProAir™ Diffusers PS10 Systems: Plug the compressor and cooling fan into the power control outlet inside of the cabinet. Plug the power control outlet into a GFCI power outlet. PS20, PS30, PS40, PS80 Systems: Plug the compressor into the power control outlet inside of the cabinet. Ensure the power switch is in the “ON” position. Plug the power control outlet into a GFCI power outlet. See the ProAir™ Diffuser Manual for assembling and connecting the diffusers. STEP SEVEN: Connect ProAir™ Diffusers STEP EIGHT: Start the Aeration System Unroll the EasySet™ weighted airline and remove any kinks or twists. Join enough sections of weighted airline, using 3/8” or 5/8” connector kits, so that the airline can rest on the bottom of the pond, from the pond’s edge out to the planned location for each diffuser. For option B installations, connect the weighted airline to the direct burial airline or Remote Manifold Kit at the pond’s edge. Note: Diffusers should be placed equally apart or in areas of low water movement for optimum performance. If you need help choosing the correct location for your diffusers, please contact Airmax® or your local dealer. STEP SIX: Connect Weighted Airline for Diffusers 6 The circulation of poor quality, low oxygen, deep water to the pond’s surface can in- troduce harmful gases and by-products into the previously healthy upper regions of the water column. These by-products can make the upper regions unfit for aquatic life and could result in fish-kill. Initial Start-Up Procedure To Prevent Fish-Kill: Follow this procedure anytime system has been shut-off for an extended period of time. Day 1: Run system for 30 minutes; turn system off for remainder of day. Day 2: Run system for 1 hour; turn system off for remainder of day. Day 3: Run system for 2 hours; turn system off for remainder of day. Day 4: Run system for 4 hours; turn system off for remainder of day. Day 5: Run system for 8 hours; turn system off for remainder of day. Day 6: Run system for 16 hours; turn system off for remainder of day. Day 7: Begin running system 24 hours/day, 7 days/week. Summer Operation To reduce the risk of fish kills in hot summer months and for optimum aeration benefits, Airmax® Aeration Systems should run continuously throughout the summer. To enhance pond health, reduce mucky bottoms and enhance pond’s aesthetic appeal, try Pond Logic® products: Ma MuckAway™ Pc PondClear™ Eb EcoBoost™ Tw Bk Nb Ab Pond Dye 3. Initial Start-Up & Seasonal Operation Winter Operation Owner assumes all responsibility for operating Airmax® Aeration System during winter months. Operating in freezing conditions on an ice-covered pond will cause large open water areas at diffuser sites. Ice thickness around open areas will be much thinner than the surrounding areas. Airmax® strongly recommends that “Danger - Thin Ice” be posted at frequent intervals around pond. If you choose to turn your system off for the winter, do the following: • Unplug your aeration system. • Disconnect compressor flex-tube(s) from airline(s). • Cover airline ends with the included winterization caps to prevent debris from entering airline. • Move cabinet and compressor inside to keep dry. • If operating during the winter season, condensation could cause airlines to freeze. If so: • Use 1 cup isopropyl alcohol in the airline running out to each plate. • Turn on compressor to push through line and free any ice blockage. 2. System Installation - Continued ENGLISH Bubbles should be noticeable on the pond’s surface from the diffuser locations. When more than one diffuser is installed, adjust the airflow valves on the compressor manifold (For Option B with Remote Manifold, do this step at the remote manifold). Once an adjustment is made you may need to wait several minutes to see the results at the diffuser location(s). Note: Deeper placement of diffusers and longer runs of airline will require more flow. Using a permanent marker, mark the current pressure gauge reading. During regular maintenance if the reading is above or below this mark, it may indicate that the system requires maintenance. STEP TEN: Adjust Airflow STEP ELEVEN: Mark Pressure Gauge STEP TWELVE: Secure Cabinet & Prepare for Start-Up  Secure the aeration cabinet lid with the 4 lobed screws. You can also secure the cabinet to prevent unwanted guests with the included Cabinet Lock Kit. Simply replace 2 lobed screws with 2 hex screws and use the hex tool to secure into place. Complete backfill on airline trenches and level with a rake. Complete installation by reviewing and following the Initial Start-Up Procedure in Section 3. 7 Airmax® Aeration Systems are designed for low-maintenance and require minimal scheduled maintenance. Cabinet inlets and outlets should be kept free of debris and weed growth allowing normal ventilation. • Always unplug system before performing any maintenance or troubleshooting. • Always unplug system and refer servicing to a qualified electrician when: cord is damaged or frayed, compressor, power control, compressor fan, or other electrical components are producing unusual noises or odors. • Always use parts that are supplied or approved by Airmax®, Inc. Use of other parts may result in poor performance and could create a hazardous situation. **Local environmental conditions may require more frequent maintenance. WARNING: Compressors are equipped with a thermal overload switch. If temperature becomes high enough to trip the overload, the compressor will shut down. It will then automatically start up when temperature decreases as long as power is applied. 4. Maintenance** EVERY 3-6 MONTHS – Air Filter: Clean/replace air filter. Cooling Fan: Check to ensure cooling fan is operating. Hot air should be pulled from the cabinet, not blowing in. Pressure Gauge: Mark pressure gauge upon initial start up. Check to verify pressure has not significantly risen above or dropped below initial reading. Normal operation will range between 5-10psi. Pressure Relief Valve: Check to ensure air is not escaping from valve and replace if needed. EVERY 12-18 MONTHS – Maintenance Kit: It is recommended to install a maintenance kit every 12-18 months to ensure optimum performance. EVERY 24-36 MONTHS – Membrane Sticks: We recommend inspecting and/or cleaning the membrane diffuser sticks every 24-36 months, or anytime the pressure gauge reading is significantly higher than normal or there is a reduction in bubbles from the diffuser. To clean, use Airmax® Fountain & Aeration Cleaner (#530298) and a soft cloth. 5. Troubleshooting IF COMPRESSOR IS NOT OPERATING: ISSUE CHECK LIKELY CAUSE CORRECTION Cabinet fan is not running. Option 1: Check for power.Compressor and fan are not receiving power. Open cabinet and ensure the compressor and fan are plugged into the power outlet. For PS20-PS80 systems, also ensure the power switch is on. Option 2: GFCI circuit tripped.Damage to electrical cord or low voltage from power supply.Contact Airmax® or local dealer for electrical troubleshooting assistance. Option 3: GFCI circuit not tripped.GFCI malfunction. Cabinet fan is running. Option 1: Check compressor for power.Compressor is not receiving power.Open cabinet and ensure the compressor is plugged into the power outlet. Option 2: Check compressor capacitor wiring for frays or poor connections. Wiring loosened or was damaged during shipment or maintenance. Contact Airmax® or local dealer for repair/replacement.Option 3: No capacitor wiring issues can be seen.Bad capacitor. Option 4: Capacitor has been replaced.Compressor is bad. IF COMPRESSOR IS OPERATING: ISSUE CHECK LIKELY CAUSE CORRECTION No bubbles at any diffusers. Option 1: No air leaks are audible in cabinet. Compressor running louder and possible excessive vibration. Compressor air filter is dirty/clogged.Clean or replace air filter. NEVER re-install wet filter. Option 2: Compressor operating normally or making unusual noises. Exhibits reduced pressure and/or air flow. Compressor needs maintenance kit and possibly new air filter. Contact Airmax® or local dealer with specifications for maintenance kit. Clean or replace air filter. NEVER re-install wet filter. No bubbles at some diffuser plates. Option 1: Check for leaks at all connections in line and in cabinet. If none are audible, carefully spray SMALL amount of soapy water onto connections and look for bubbles. Vibration loosened connection or cracked fitting.Tighten loose connection or replace cracked fitting as necessary. Option 2: Are all flow control valves in compressor wide open?Improper “balancing” of diffusers. Adjust air flow valves on manifold in cabinet until all diffusers operate properly. See Section 2. System Installation for more information. Option 3: Valves in cabinet are properly “balanced” and no leaks are evident. Compressor beginning to lose compression and needs maintenance kit. Contact Airmax® or local dealer with compressor specifications for maintenance kit. Large rolling bubbles instead of fine bubbles at surface above one or more diffuser plates. Inspect each diffuser plate for malfunction.Diffuser membrane damaged, diffuser plate fitting broken or diffuser plate is flipped over.Contact Airmax® or local dealer for repair/replacement. Air coming out of pressure relief valve. Option 1: High pressure reading on gauge. Inspect diffuser plates and tubing for clogging.Diffuser maintenance needed.Remove any overgrowth around diffuser membrane surface. See Section 4. Maintenance for more information. Option 2: Low pressure reading on gauge. Diffuser plates not clogged.Bad pressure relief valve.Contact Airmax® or local dealer for repair/replacement. Compressor stops working for periods of time, then restarts.Inspect cooling fan for proper function.Compressor over-heating due to bad cooling fan. Contact Airmax® or local dealer for fan replacement. If possible, leave top of cabinet open for cooling. Otherwise, unplug system until fan is replaced. Compressor shakes erratically and is making loud noises. Option 1: Check for low voltage while compressor is running. Gauge of supply wires to circuit possibly undersized or cabinet is plugged into extension cord. If gauge of circuit wiring is incorrect, have electrician replace. NEVER use extension cord to operate system for continual use. Option 2: Check for clogged air filter.Air filter in need of replacement.Clean or replace air filter. NEVER re-install wet filter. ENGLISH Watch the Maintenance Kit How-To Video at airmaxeco.com/PondSeriesAeration 8 1. RP Series SilentAir™ High Efficiency Compressor #510503 – RP25 (87R) 1/4 HP Single Piston Compressor, 115V #510504 – RP25 (87R) 1/4 HP Single Piston Compressor, 230V #510501 – RP50 (87R) 1/2 HP Dual Piston Compressor, 115V #510505 – RP50 (87R) 1/2 HP Dual Piston Compressor, 230V #510502 – RP75 (72R) 3/4 HP Dual Piston Compressor, 115V #510506 – RP75 (72R) 3/4 HP Dual Piston Compressor, 230V #510510 – RP25 (87R) 1/4 HP Maintenance Kit #510511 – RP50 (87R) 1/2 HP Maintenance Kit #510512 – RP75 (72R) 3/4 HP Maintenance Kit Cabinet & Compressor Replacement Parts 2. #490239 – Pressure Relief Valve 3. #490272 – Pressure Gauge 4. Airflow Manifold Assembly #600186 – PS10 #600242 – PS20 #600243 – PS30 #600241 – PS40 #600246 – PS80 5. Cooling Fan #510345 – Cooling Fan for 115V Systems #510344 – Cooling Fan for 230V Systems 6. #510395 – Air Intake Pre-Filter #510417 – Air Intake Pre-Filter (PS80 Only) 7. #490194 – 3⁄8” Flex-Tube 8. Air Filter #510150 – Air Filter, Complete #510151 – Air Filter Media Only #510118 – 3⁄8” Weighted Airline, 100’ Roll #510119 – 5⁄8” Weighted Airline, 100’ Roll #510120 – 5⁄8” Direct Burial Airline, 100’ Roll EasySet™ Airline THANK YOU FOR CHOOSING ProAir™ 4 Replacement Parts 9. #490332 – Diffuser Manifold 10. #490337 – Diffuser Sled 11. #510168 – PTFE 6” Membrane Stick 12. #490340 – Check Valve *#490158 – 1” Marine Stainless Hose Clamp *#490118 – ½” to ¾” Insert Reducer Adapter *#490118 – 3⁄8” to ¾” Insert Reducer Adapter *Not shown in Diagram ENGLISH Connector Kits 3/8” Connector Kit #490204 3/8” to 5/8” Connector Kit #490205 5/8” Connector Kit #490206 9 10 11 12 13 Optional Remote Manifold Kits Optional Deep Water Kit Security Kits 13. #600192 – Airmax® PS20 2-Port Remote Manifold Kit #600190 – Airmax® PS30 3-Port Remote Manifold Kit #600194 – Airmax® PS40 4-Port Remote Manifold Kit 5 8 3 1 6 2 4 7 Optional Optional Remote Manifold Kit (Airmax® 4-Port Manifold Kit Shown) 13 6. Replacement Parts / Accessories For use on PondSeries™ Systems when water is greater than 21' deep. #510435 – PS10 #510436 – PS20 #510437 – PS30 #510438 – PS40 #510439 – PS80 #510430 – Security Stake Kit (Optional) #510424 – Cabinet Lock Kit Security Stake KitCabinet Lock Kit www.airmaxeco.comCleaning Water Naturally™ 9 NOTES Visit airmaxeco.com or call your local Airmax® Dealer with questions or to order parts. 17 Airmax®, Inc. Airmax® Aeration SystemsLimited Warranty Airmax®, Inc. warrants to the original purchaser (the end user) of any Airmax® Aeration System manufactured by Airmax®, Inc. that any aeration system component which proves to be defective in materials or workmanship, as determined by the factory within the timeframe specified below from the shipping date, will be repaired or re- placed at no charge with a new or remanufactured part, and returned freight prepaid. The end user shall assume all the responsibility and expense for removal, packaging, and freight to ship to Airmax®, Inc. to determine the warranty claim and for all reinstallation expenses. • Cabinet – Lifetime • Compressor – 2 Years • Airline & Diffusers – 5 Years The warranty is void in cases where damage results from: improper installation, improper electrical connection, improper voltage, alteration, lightning, careless handling, misuse, abuse, disassembly of motor or failure to follow maintenance or operating instructions. Modification or repair by an unauthorized repair facility will void the war- ranty. Compressor seals, piston cups, cylinder sleeves, valves, air filters and diffuser membranes are considered wear parts and are not covered under warranty. In no case will Airmax®, Inc. or its dealers accept responsibility for any costs incurred by the user during installation, removal, inspection, evaluation, repair, parts replacement, or for return freight. Nor will any liability be accepted for loss of use, loss of profits, loss of goodwill, for consequential damage, or for personal injuries to the purchaser or any person. In the event of problems believed to be covered under warranty, it will be necessary to notify the dealer who will try to help resolve the problem and who may contact the factory for additional assistance. If it is concluded that there may be a defect which may be covered under warranty, it will be necessary to get a Return Material Autho- rization (RMA) from the dealer before shipment. Freight collect shipments will not be accepted by the factory on warranties or repairs. The product or part(s) must be returned freight prepaid, to the factory, as directed, and in its original packaging or in a container which will prevent damage. Parts returned under warranty and damaged during shipping will not be covered under warranty for the shipping damage. If the factory evaluation of the returned goods concludes that the failure is due to defects in materials or workmanship, the part or parts in question will be replaced under war- ranty with new parts, remanufactured parts, or will be repaired; at the factory’s option. The warranty period for all parts supplied under warranty will terminate at the end of the original product’s warranty. All warranty shipments from the factory will be shipped freight prepaid. Warranty registration is HIGHLY recommended. No implied warranties of any kind are made by Airmax®, Inc. for its products, and no other warranties, whether expressed or implied, including implied warranties of merchantability and fitness for a particular purpose, shall ap- ply. Should an Airmax®, Inc. product prove to be defective in materials or workmanship, the retail purchaser’s sole remedy shall be repair or replacement of the product as expressly provided above. The manufacturer’s warranty will begin from the dealer’s original purchase date if the product is not registered. To register a product you are required to fill out the warranty form at airmaxeco.com/warranty. Warranty registration must be submitted directly to Airmax® within 30 days of the end-users purchase date. When making warranty claims end-users may be required to supply their proof of purchase. 19 044_13 Airmax® Inc. Safe, Simple Solutions™ P.O. Box 38 Romeo, MI 48065 (866) 4-AIRMAX airmaxeco.com Stormwater Wetlands 1 Specifications for Installation of Wetland Plants in Stormwater Wetlands (According to Marion County, Indiana Regulations) Part 1 General 1.01 Section Includes A. Preparation B. Seeding C. Planting D. Seed Protection E. Waterfowl exclusion F. Maintenance 1.02 Bidder qualifications A. The submitting bidders shall be, and have been, actively and directly engaged in wetland plant installation for a period of two (2) or more years. Provide proof of five (5) or more successful wetland plant installations. B. Qualified bidders shall possess specialized equipment for working in and around water, including a small boat, hip waders, and floatation life preservers to be worn while working in water. 1.03 Environmental Requirements A. Installation shall be performed during the growing season, specifically between March 15th and September 30th. Stormwater Wetlands 2 B. Hydrology shall be established prior to installation. Wetland must have an established water level. C. Surrounding uplands shall be stabilized with the specified grass seed mix. No pre-emergent herbicides shall be applied to surrounding turf during the six months prior to installation and for at least 1 year following installation. D. Emergent plants shall be installed prior to seeded communities. 1.04 Materials A. All native seed shall be stored in a cooler at 40 degrees Fahrenheit prior to installation 1. All native seed must be of wild ecotype as provided by Spence Restoration Nursery or approved local source. No hybrids or cultivars may be included. 2. Local genotype seed shall be used whenever possible due to its adaptation to local soil and climate. These specifications do not apply to the temporary matrix. B. Container grown plants shall be used for the emergent plant communities. 1. Container grown plants must be of wild ecotype as provided by Spence Restoration Nursery in 2 3/8”X 3 ¾” open bottomed pots. No hybrids or cultivars may be included. 2. Container grown plants shall be inoculated with pelletized VAM (Vesicular Arbuscular Mycorrhizae) endomycorrhizal fungi as provided by Spence Restoration Nursery or approved source where available. Part II - Products 2.01 Plants A. Low Marsh 6-18 inches Installation must include at least three of the species below, including two aggressive species marked with an asterisk(*). Species noted by the number sign (#) may be installed bare-root. Others must be installed from container grown plants. Pickerel Weed (Pontederia cordata)# Stormwater Wetlands 3 Hard-Stemmed Bulrush (Schoenoplectus acutus) River Bulrush (Bolboschoenus fluviatilis)#* Soft-Stem Bulrush (Schoenoplectus tabernaemontani)* Giant Burreed (Sparganium eurycarpum)* B. High Marsh: 6 inches or less below normal pool elevations. Installation must include at least 6 of the species below, including two aggressive species marked with an asterisk(*). Sweet Flag (Acorus calamus) Water Plantain (Alisma subcordatum) Bristly Sedge (Carex comosa) Lake Sedge (Carex lacustris)* Tussock Sedge (Carex stricta) Buttonbush (Cephalanthus occidentalis) Creeping Spike Rush (Eleocharis erythropoda)* Swamp Rose Mallow (Hibiscus moscheutos) Soft Rush (Juncus effusus) Wild Iris (Iris versicolor) Blue Flag (Iris virginica shrevei) Rice Cut Grass (Leersia oryzoides)* Arrowhead (Sagittaria latifolia)* Lizard’s Tail (Saururus cernuus) Dark Green Bulrush (Scirpus atrovirens) Woolgrass (Scirpus cyperinus) Three-Square Bulrush (Schoenoplectus pungens)* C. Semi-Wet Zone - Areas above normal pool that are occasionally inundated Installation must include container grown plants or a seed mix containing at least 15 species below including two aggressive species marked with an asterisk (*). Species appropriate for shady locations are marked with a carrot (^) Marsh Milkweed (Asclepias incarnata) Shining Aster (Symphyotrichum firmus) New England Aster (Symphyotrichum novae-angliae) Swamp Aster (Symphyotrichum puniceum) Flat-Topped Aster (Doellingeria umbellata) Tall Brome (Bromus latiglumis)^ Blue-Joint Grass (Calamagrostis canadensis)* Marsh Marigold (Caltha palustris)^ Brome Hummock Sedge (Carex bromoides)^ Fringed Sedge (Carex crinita)^ Stormwater Wetlands 4 Crested Sedge (Carex cristatella) Riverbank Tussock Sedge (Carex emoryi)* Frank’s Sedge (Carex frankii)^ Meadow Sedge (Carex granularis)^ Burr Sedge (Carex grayi)^ Porcupine Sedge (Carex hystericina) Bottlebrush Sedge (Carex lurida) Palm Sedge (Carex muskingumensis)^ Spreading Oval Sedge (Carex normalis)^ Short’s Sedge (Carex shortiana) Narrow-Leaf Cattail Sedge (Carex squarrosa)^ Awl-Fruited Sedge (Carex stipata)^ Pointed Oval Sedge (Carex tribuloides) Fox Sedge (Carex vulpinoidea ) White Turtlehead (Chelone glabra)^ Pink Turtlehead (Chelone obliqua)^ Hollow Joe-Pye Weed (Eutrochium fistulosum) Spotted Joe-Pye Weed (Eutrochium maculatum) Boneset (Eupatorium perfoliatum) Queen of the Prairie (Filipendula rubra) Fowl Manna Grass (Glyceria striata)^ Autumn Sneezeweed (Helenium autumnale) Torrey’s Rush (Juncus torreyi)* Cardinal Flower (Lobelia cardinalis)^ Great Blue Lobelia (Lobelia siphilitica)^ Monkey Flower (Mimulus ringens) Obedient Plant (Physostegia virginiana) Golden Ragwort (Senecio aureus)^ Ohio Goldenrod (Oligoneuron ohioense) Swamp Goldenrod (Solidago patula) Riddell’s Goldenrod (Oligoneuron riddellii) Prairie Cord Grass (Spartina pectinata)* Tall Ironweed (Vernonia gigantea) Smooth Ironweed (Vernonia fasciculata) 2.02 Accessories A. Waterfowl Exclusion 1. Posts - 6 foot lightweight fence posts 2. Fence - 4 foot width of plastic filaments with 1 inch square openings. B. Potting mix – Sterile dry potting mix composed of a light-weight vermiculite mix Stormwater Wetlands 5 Part III Execution 3.01 Examination A. Verify that a stable water level has been established in the wetland. B. Verify that the surrounding uplands have been stabilized with the specified grass seed mix. 3.02 Preparation A. Two weeks (14 days) prior to installation, apply a glyphosate herbicide approved for use around water (Rodeo) to the area to kill existing vegetation. B. Following a complete kill of existing vegetation, begin installation by tilling any areas to be seeded to a depth of 3 inches. Till as close to the shoreline as soil moisture conditions permit. Do not till areas where live plants are to be installed. 3.03 Installation of waterfowl exclusion fence A. Place posts on 15 ft centers. Each post shall be driven approximately 1 foot into the pond bottom. Install fence to form 15' X 15' enclosures. Form each enclosure immediately following installation of plants. Planted areas shall not remain unprotected overnight. B. Attach fence to posts with wire ties so that the fence extends to the pond bottom and at least 30 inches above the waters surface. 3.04 Installation of Plants A. All aquatic plants must be installed in the appropriate water depths where protected by waterfowl exclusion fence and the shore. 50% of the 15'X 15' enclosures shall be planted according to the specifications below. 1. Low marsh plants shall be installed 6-18 inches below normal pool elevation. Install plants on 2' centers. Evenly distribute each species around the pond, planting in groups of 3 to 5 plants of each species. 2. High marsh species shall be installed 6 inches or less below the normal pool elevation. Install plants on 18" centers. Evenly distribute each species around the pond, planting in groups of 3 to 5 plants of each species. 3. Semi-Wet zone species shall be installed in areas above normal pool elevation that are inundated by larger storm events. These species shall be Stormwater Wetlands 6 installed as either container grown plants on 12" centers or an approved seed mix containing species from the above list. B. All low and high marsh plants shall be installed by creating a hole with a spade or dibble, placing the plants in the hole and firmly packing the soil around them. Plants allowed to float to the surface following installation shall result in rejection of the installation. C. Plants installed in the semi- wet zone shall be installed by creating a hole with a gas powered hand-held auger. 1. Holes shall be created in a staggered pattern on 1 foot centers. 2. Plant plugs level with existing soil grade. Be certain that soil is placed around the plugs and firmed into place. Do not fill around plugs with mulch. 3. Thoroughly soak plugged area with water until soil is moist to a depth of 4 inches. 3.05 Seeding A. Place a portion of the seed in a clean, dry 5 gallon bucket. Mix 2 parts potting mix with 1 part seed. Thoroughly mix seed and potting mix. B. Hand broadcast potting mix/seed mixture across the specified tilled area. Apply half of the mixture over the entire area. Apply the second half over the same area utilizing the same procedure. This method prevents using all of the seed before the entire area is covered. C. Lightly firm seedbed with a roller where soil moisture permits. Do not roll areas where soil is moist enough to stick to the roller. 3.06. Protection A. Protect seeded areas with stakes and tape around area periphery. 3.07. Maintenance A. Pull weeds of the following invasive species deemed detrimental to wetland plantings. Purple Loosestrife (Lythrum salicaria) Common Reed (Phragmites australis) Stormwater Wetlands 7 Cattails (Typha spp) B. Remove unwanted woody seedlings in shoreline areas including Cottonwood (Populus deltoides), Willow (Salix spp), and Silver Maple (Acer saccharinum). C. If weed growth exceeds ten inches in height in seeded areas, trim or mow to 4 inches. Do not cut areas where live plants were installed. D. Maintain waterfowl exclusion fence for 1 year. At the end of that period, remove fence and posts. 3.08 Acceptance A. Planted Wetland Communities - For acceptance at the end of the first growing season, the following condition shall be met for areas where live plants were installed. 1. 75% of the species planted shall be alive and present. 2. 50 % of the water surface in the shallow water community shall be covered with vegetation. 3. 25 % of the water surface in the floating leaf community shall be covered with vegetation. B. Seeded Native Communities - For acceptance at the beginning of the second growing season, the following conditions shall be met. 1. Coverage - 80 % of each plant community shall be covered with by vegetation. 2. Presence - 50 % of the species planted should be alive and present. 3. Abundance - 50 % of the vegetation should native species of the permanent matrix. Spence Restoration Nursery 2220 E. Fuson Road Muncie, IN 47302 Tel: (765) 286-7154 Fax: (765) 286-0264 www.spencenursery.com Design and Maintenance Considerations for SNOUT® Stormwater Quality Systems Background: The SNOUT system from Best Management Products, Inc. (BMP, Inc.) is based on a vented hood that can reduce floatable trash and debris, free oils, and other solids from stormwater discharges. In its most basic application, a SNOUT hood is installed over the outlet pipe of a catch basin or other stormwater quality structure with a deep sump (see Installation Drawing). The SNOUT forms a baffle that traps floatable debris and free oils on the surface, while permitting heavier solids to sink to the bottom of the sump. The clarified intermediate layer is forced out of the structure through the open bottom of the SNOUT by displacement from incoming flow. The resultant discharge contains considerably less unsightly trash and other gross pollutants, and can also offer reductions of free-oils and finer solids. As with any structural stormwater quality design, maintenance considerations will have a dramatic impact on SNOUT system performance over the life of the facility. The most important factor to consider when designing structures with a SNOUT is the depth of the sump. Sump is defined as the depth from the invert of the outlet pipe to the bottom of the structure. Simply put, the deeper the sump, the more effective the unit will be both in terms of pollutant removals and reducing frequency of maintenance. More volume in a structure means more quiescence, thus allowing the pollutants a better chance to separate out. Secondly, more volume means fewer cycles between maintenance, because the structure has a greater capacity. Of equal importance to good performance is putting SNOUTs in multiple structures. The closer one captures pollution to where it enters the infrastructure (e.g. at the inlet), the less mixing of runoff there is, and the easier it will be to separate out pollutants. Putting SNOUTs and deep sumps in all inlets that can be easily maintained develops a powerful structural treatment train with a great deal of effective storage volume, where even finer particles may have chance to settle out. Design Notes: • The SNOUT size is ALWAYS greater than the nominal pipe size. The SNOUT should cover the pipe OD and optimally the grouted area around the pipe (e.g. for a 12” pipe, an 18” SNOUT is the correct choice). • As a rule of thumb, BMP, Inc. recommends minimum sump depths based on outlet pipe inside diameters of 2.5 to 3 times the outlet pipe size. • For best performance, the inlet pipe and outlet pipe should have inverts close to the same elevation (a six inch or less deviation is optimal). • Special note for smaller pipes: A minimum sump depth of 36 inches for all pipe sizes 12 inches ID or less, and 48 inches for pipe 15-18 inches ID is required if collection of finer solids is desired. • The plan dimension of the structure should be up to 6 to 7 times the flow area of the outlet pipe. Increasing area beyond that has a minimal impact on performance. However, the structure wall where the SNOUT is mounted must accommodate the size of the SNOUT (either the correct diameter or enough width). • To optimize pollutant removals establish a “treatment train” with SNOUTs placed in as many inlets where it is feasible to do so (this protocol applies to most commercial, institutional or municipal applications and any application with direct discharge to surface waters). • At a minimum, SNOUTs should be used in every third structure for less critical applications (less critical areas might include flow over grassy surfaces, very low traffic areas in private, non-commercial or non-institutional settings, single family residential sites). • Use Bio-Skirts® for increased hydrocarbon reduction. Bio-Skirts are highly recommended for fueling or vehicle service stations, convenience stores, restaurants, loading docks, marinas, beaches, schools or high traffic applications. Each Bio-Skirt can retain about one gallon of oils. • Use the Stainless TrashScreen for “Full Trash Capture” requirements. • The “R” series SNOUTs (12R, 18R, 24R, 30R, 30R/96, 42RTB/60, 52RTB/72, 52RTB/84 and 72RTB/96) are available for round manhole type structures of up to 96” ID; the “F” series SNOUTs (LP318F, 12F, 18F, 24F, 30F, 36F, 48F, 72F and 96F) are available for flat walled structures; the “NP” series SNOUTs (NP1218R, NP1524R, NP1830R, and NP2430R) are available for smaller diameter structures up to 30” ID. Example Structure Sizing Calculation: A SNOUT equipped structure with a 15 inch ID outlet pipe (1.23 sqft. flow area) will offer best performance with a minimum plan area of 7.4 sqft. and 48 inch sump. Thus, a readily available 48 inch diameter manhole-type structure, or a rectangular structure of 2 feet x 4 feet will offer sufficient size when combined with a sump depth of 48 inches or greater. Maintenance Recommendations: • Monthly monitoring for the first year of a new installation after the site has been stabilized is a recommended practice. • Measurements should be taken after each rain event of .5 inches or more, or monthly, as determined by local weather conditions. • Checking sediment depth and noting the surface pollutants in the structure will be helpful in planning maintenance. • The pollutants collected in SNOUT equipped structures will consist of floatable debris and oils on the surface of the captured water, and grit and sediment on the bottom of the structure. • It is best to schedule maintenance based on the solids collected in the sump. • Optimally, the structure should be cleaned when the sump is half full (e.g. when 2 feet of material collects in a 4 foot sump, clean it out). • Structures should also be cleaned if a spill or other incident causes a larger than normal accumulation of pollutants in a structure. • Maintenance is best done with a vacuum truck. • If Bio-Skirts are being used in the structure to enhance hydrocarbon capture, they should be checked on a monthly basis for the first year, and serviced or replaced when more than 2/3 of the boom is submerged, indicating a nearly saturated state. Assuming a typical pollutant-loading environment exists, Bio- Skirts should be serviced* annually or replaced as necessary. • In the case of an oil spill, the structure should be checked and serviced and Bio-Skirts (if present) replaced or serviced immediately. • All collected wastes must be handled and disposed of according to local environmental requirements. • To maintain the SNOUT hoods, an annual inspection of the anti-siphon vent and access hatch are recommended. A simple flushing of the vent, or a gentle rodding with a flexible wire are all that’s typically needed to maintain the anti-siphon properties. Opening and closing the access hatch once a year ensures a lifetime of trouble-free service. *To extend the service life of a Bio-Skirt, the unit may be “wrung out” to remove oils and washed in an industrial washing machine with warm water. The Bio-Skirt may then be re-deployed if the material maintains it’s structural integrity. A maintained Bio-Skirt can last for several years. Each Bio-Skirt can hold about on gallon of oils. SNOUT INSTALLATION: Maintenance Standards derived from the Washington State Department of Ecology’s Stormwater Management Manual for Eastern Washington (September 2004). Page 5 Maintenance Standards Conveyance Systems (Pipes and Ditches) Maintenance Code Type Conditions When Maintenance Is Needed 1 Sediment Sediment or debris exceeds 20% of pipe diameter or 20% of debris barrier openings. Accumulated sediment that exceeds 20% of the design depth of the ditch. 2 Trash & Debris Trash and debris accumulated in pipe or ditch. Visual evidence of dumping 3 Vegetation Vegetation reduces movement of water through pipes. Excessive vegetation that reduces free movement of water through ditches. 4 Water Quality Any evidence of oil, gasoline, contaminants or other pollutants. Water flowing in pipes or ditch during dry weather – report as potential illicit discharge concern. 5 Water Flow Impeded water flow due to vegetation or sediment (use appropriate code from above). Standing water in the pipe or swale between storm events. 6 Erosion Erosion damage over 2 inches deep where cause is still present or there is potential for continued erosion. Native soil is visible beneath the rock lining of a conveyance ditch. 7 Cover/Frame/ Grate N/A 8 Structure Debris barrier/trash rack is missing or not attached to pipe. Debris barrier/trash rack bars are bent by more than 3 inches. Debris barrier/trash rack bars are loose or rust is causing 50% deterioration to any part of the barrier. 9 Damaged Pipes Protective coating is damaged or rust is causing more than 50% deterioration to any part of pipe. Any dent that decreases the flow area by more than 20% or puncture that impacts performance. 10 Mosquito Vector Breeding Suitable habitat exists for mosquito production (e.g. standing water for more than 72 hours in areas accessible to mosquitoes.) 11 Other 12 Could Not Locate Field inspectors are unable to locate the pipe or ditch. Maintenance Standards derived from the Washington State Department of Ecology’s Stormwater Management Manual for Eastern Washington (September 2004). Page 6 Maintenance Standards Drywells Maintenance Code Type Conditions When Maintenance Is Needed 1 Sediment Sediment depth exceeds 2 feet or impedes flow from inlet pipes. 2 Trash & Debris Trash or debris exceeds 2 feet or impedes flow from inlet pipes. Trash or debris blocks more than 1/3 of any inlet or outlet pipe. Dead animals or vegetation that generate odors and cause complaints or dangerous gases (e.g., methane). 3 Vegetation Vegetation growing in inlet/outlet pipe joints that is more than six inches tall. Root systems entering drywell. 4 Water Quality Any evidence of oil, gasoline, contaminants or other pollutants. Water flowing into drywell during dry weather – report as potential illicit discharge concern. 5 Water Flow Facility does not drain within 72 hours. Impeded water flow due to vegetation or sediment (use appropriate code from above). 6 Erosion N/A 7 Cover/Frame/ Grate Cover is missing or only partially in place. One maintenance person cannot remove lid after applying normal lifting pressure. Frame separated by more than ¾ inch from top slab. Frame not securely attached. Locking mechanism cannot be opened by one maintenance person with proper tools. Bolts into frame have less than 1/2 inch of thread. 8 Structure Top slab with holes larger than 2 square inches or cracks wider than 1/4 inch. Grout at inlet/outlet pipes has separated or cracked wider than ½ inch and longer than one foot. Settlement has created a safety, function, or design problem. Field inspector judges that structure is unsound. 9 Damaged Pipes Inlet piping damaged or broken and in need of repair. 10 Mosquito Vector Breeding Suitable habitat exists for mosquito production (e.g. standing water for more than 72 hours in areas accessible to mosquitoes.) 11 Other 12 Could Not Locate Field inspectors are unable to locate the drywell. Post-Construction BMP Inspection Checklist Detention Pond Detention Pond Operation, Maintenance, and Management Inspection Checklist Project: ___________________________________________________________________________________ Location: ___________________________________________________________________________________ Date: _________________________________________ Time: ____________________________ Inspector: _________________________________________ Title: ____________________________ Signature: ____________________________________________________ Maintenance Item Satisfactory/ Unsatisfactory Comments 1. Embankment and emergency spillway Healthy vegetation with at least 85% ground cover. No signs of erosion on embankment. No animal burrows. Embankment is free of cracking, bulging, or sliding. Embankment is free of woody vegetation. Embankment is free of leaks or seeps Emergency spillway is clear of obstructions. Vertical/horizontal alignment of top of dam “As- Built” 2. Riser and principal spillway Low flow outlet free of obstruction. Trash rack is not blocked or damaged. Riser is free of excessive sediment buildup Outlet pipe is in good condition. Control valve is operational Outfall channels are stable and free of scouring. Stormwater Ordinance Technical Standards Detention Pond O&M 1 of 2 July 2004 Post-Construction BMP Inspection Checklist Detention Pond Maintenance Item Satisfactory/ Unsatisfactory Comments 3. Permanent Pool (Wet Ponds) No Evidence of undesirable vegetation No accumulation of floating or floatable debris No evidence of shoreline scour or erosion 4. Sediment Forebays Sediment is being collected by forebay(s) Forebay is not in need of cleanout (less than 50% full) 5. Dry Pond Areas Healthy vegetation with at least 85% ground cover. No undesirable woody vegetation Low flow channels clear of obstructions No evidence of sediment and/or trash accumulation 6. Condition of Outfall into Ponds No riprap failures No evidence of slope erosion or scouring Storm drain pipes are in good condition, with no evidence of non-stormwater discharges End walls/Headwalls are in good condition Stormwater Ordinance Technical Standards Detention Pond O&M 2 of 2 July 2004