Subscribe to Our Youtube Channel
Related Manuals for Contech Filterra
Summary of Contents for Contech Filterra
- Page 1 Operation & Maintenance (OM) Manual v01 ® Bioretention Systems ENGINEERED SOLUTIONS...
- Page 2 ® Bioretention Systems Table of Contents Overview • Filterra® General Description • Filterra® Schematic • Basic Operations • Design Maintenance • Maintenance Overview » Why Maintain? » When to Maintain? • Exclusion of Services • Maintenance Visit Summary • Maintenance Tools, Safety Equipment and Supplies • Maintenance Visit Procedure • Maintenance Checklist ENGINEERED SOLUTIONS www.ContechES.com/filterra | 800-338-1122...
-
Page 3: General Description
General Description The following general specifications describe the general operations and maintenance requirements for the Contech Engineered Solutions LLC stormwater bioretention filtration system, the Filterra . The system utilizes physical, chemical ® and biological mechanisms of a soil, plant and microbe complex to remove pollutants typically found in urban stormwater runoff. The treatment system is a fully equipped, pre-constructed drop-in place unit designed for applications in the urban landscape to treat contaminated runoff. Stormwater flows through a specially designed filter media mixture contained in a landscaped concrete container. The mixture immobilizes pollutants which are then decomposed, volatilized and incorporated into the biomass of the Filterra ® system’s micro/macro fauna and flora. Stormwater runoff flows through the media and into an underdrain system at the bottom of the container, where the treated water is discharged. Higher flows bypass the Filterra to a downstream inlet or ® outfall. Maintenance is a simple, inexpensive and safe operation that does not require confined space access, pumping or vacuum equipment or specialized tools. Properly trained landscape personnel can effectively maintain Filterra Stormwater ® systems by following instructions in this manual. www.ContechES.com/filterra | 800-338-1122... - Page 4 , Contech reviews each application inches of annual rainfall, (2) two visits are generally required; before supply. Information and help may be provided to regions with less rainfall often only require (1) one visit per the design engineer during the planning process. Correct annum. Varying land uses can affect maintenance frequency; Filterra® box sizing (by rainfall region) is essential to predict e.g. some fast food restaurants require more frequent trash pollutant removal rates for a given area. The engineer shall removal. Contributing drainage areas which are subject to new submit calculations for approval by the local jurisdiction. development wherein the recommended erosion and sediment The contractor is responsible for the correct installation of control measures have not been implemented may require Filterra units as shown in approved plans. A comprehensive additional maintenance visits. installation manual is available at www.conteches.com. Some sites may be subjected to extreme sediment or trash Maintenance loads, requiring more frequent maintenance visits. This is the reason for detailed notes of maintenance actions per unit, Why Maintain? helping the Supplier and Owner predict future maintenance All stormwater treatment systems require maintenance for frequencies, reflecting individual site conditions. effective operation. This necessity is often incorporated in Owners must promptly notify the (maintenance) Supplier of your property’s permitting process as a legally binding BMP any damage to the plant(s), which constitute(s) an integral part maintenance agreement. of the bioretention technology. Owners should also advise • Avoid legal challenges from your jurisdiction’s other landscape or maintenance contractors to leave all maintenance enforcement program. maintenance to the Supplier (i.e. no pruning or fertilizing). • Prolong the expected lifespan of your Filterra media. www.ContechES.com/filterra | 800-338-1122...
- Page 5 It is the responsibility of the owner to provide adequate irrigation when necessary to the plant of the Filterra® system. Clean up due to major contamination such as oils, chemicals, toxic spills, etc. will result in additional costs and are not covered under the Supplier maintenance contract. Should a major contamination event occur the Owner must block off the outlet pipe of the Filterra® (where the cleaned runoff drains to, such as drop inlet) and block off the throat of the Filterra®. The Supplier should be informed immediately. Maintenance Visit Summary Each maintenance visit consists of the following simple tasks (detailed instructions below). 1. Inspection of Filterra® and surrounding area 2. Removal of tree grate and erosion control stones 3. Removal of debris, trash and mulch 4. Mulch replacement 5. Plant health evaluation and pruning or replacement as necessary 6. Clean area around Filterra® 7. Complete paperwork Maintenance Tools, Safety Equipment and Supplies Ideal tools include: camera, bucket, shovel, broom, pruners, hoe/rake, and tape measure. Appropriate Personal Protective Equipment (PPE) should be used in accordance with local or company procedures. This may include impervious gloves where the type of trash is unknown, high visibility clothing and barricades when working in close proximity to traffic and also safety hats and shoes. A T-Bar or crowbar should be used for moving the tree grates (up to 170 lbs ea.). Most visits require minor trash removal and a full replacement of mulch. See below for actual number of bagged mulch that is required in each unit size. Mulch should be a double shredded, hardwood variety; do not use colored or dyed mulch. Some visits may require additional Filterra® engineered soil media available from the Supplier. Filter Surface Volume at 3” # of 2 ft³ Mulch Box Length Box Width Area (ft²) (ft³) Bags www.ContechES.com/filterra | 800-338-1122...
- Page 6 Maintenance Visit Procedure Keep sufficient documentation of maintenance actions to predict location specific maintenance frequencies and needs. An example Maintenance Report is included in this manual. 1. Inspection of Filterra® and surrounding area • Record individual unit before maintenance with photograph (numbered). Record on Maintenance Report (see example in this document) the following: Record on Maintenance Report the following: Standing Water yes | no Damage to Box Structure yes | no Damage to Grate yes | no Is Bypass Clear yes | no If yes answered to any of these observations, record with close-up photograph (numbered). 2. Removal of tree grate and erosion control stones • Remove cast iron grates for access into Filterra® box. • Dig out silt (if any) and mulch and remove trash & foreign items. Record on Maintenance Report the following: Silt/Clay...
- Page 7 5. Plant health evaluation and pruning or replacement as necessary • Examine the plant’s health and replace if dead. • Prune as necessary to encourage growth in the correct directions Record on Maintenance Report the following: Height above Grate ________________(ft) Width at Widest Point ________________(ft) Health alive | dead Damage to Plant yes | no Plant Replaced yes | no 6. Clean area around Filterra® • Clean area around unit and remove all refuse to be disposed of appropriately. 7. Complete paperwork • Deliver Maintenance Report and photographs to appropriate location (normally Contech during maintenance contract period). • Some jurisdictions may require submission of maintenance reports in accordance with approvals. It is the responsibility of the Owner to comply with local regulations. www.ContechES.com/filterra | 800-338-1122...
- Page 8 Pest infestation. Vandalism to plants. Plants should be Trim/prune plants in Plant growth appropriate to the accordance with typical Vegetation excessive. species and location of landscaping and safety Filterra. needs. Cracks wider than 1/2 inch or evidence of soil Structure has Structure particles entering the Vault should be repaired. visible cracks. structure through the cracks. Maintenance is ideally to be performed twice annually. ENGINEERED SOLUTIONS © 2015 Contech Engineered Solutions LLC www.ContechES.com/filterra | 800-338-1122 Revised 6/22/2015...
Need help?
Do you have a question about the Filterra and is the answer not in the manual?
Questions and answers