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<td>StormTech Isolator Row</td> | <td>StormTech Isolator Row</td> | ||
− | <td>Installation instructions available here.</td> | + | <td>Installation instructions [https://www.stormtech.com/download_files/pdf/manual_installation_instructions_310740780.pdf available here].</td> |
<td>At least every 6 months for first year of operation, then varies by location</td> | <td>At least every 6 months for first year of operation, then varies by location</td> | ||
− | <td>Step by step maintenance procedures </td> | + | <td>[https://www.stormtech.com/download_files/pdf/manual_iso_row.pdf Step by step maintenance procedures]</td> |
<td></td> | <td></td> | ||
<td>Clean-out when average depth of sediment exceeds 3 inches</td> | <td>Clean-out when average depth of sediment exceeds 3 inches</td> | ||
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<td></td> | <td></td> | ||
<td>Every 3-6 months during first year, then site specific</td> | <td>Every 3-6 months during first year, then site specific</td> | ||
− | <td>Maintenance and inspection checklist</td> | + | <td>[https://www.hydro-int.com/sites/default/files/hds_om_manual_a1604.pdf Maintenance and inspection checklist]</td> |
<td></td> | <td></td> | ||
<td>Remove sediment once depth exceeds maximum clean-out depth</td> | <td>Remove sediment once depth exceeds maximum clean-out depth</td> | ||
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<td></td> | <td></td> | ||
<td>After each runoff event initially, then at least quarterly. Local and State regulation may require every 90 days</td> | <td>After each runoff event initially, then at least quarterly. Local and State regulation may require every 90 days</td> | ||
− | <td>Inspection and maintenance checklist</td> | + | <td>[https://www.suntreetech.com/uploads/1/1/4/5/114586811/nsbb_operations_manual_v1.0.pdf Inspection and maintenance checklist]</td> |
<td></td> | <td></td> | ||
<td>Vacuum out sediment chambers when sediment accumulation exceeds 50% storage volume</td> | <td>Vacuum out sediment chambers when sediment accumulation exceeds 50% storage volume</td> | ||
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<td></td> | <td></td> | ||
<td>At least quarterly until a more accurate schedule can be determined</td> | <td>At least quarterly until a more accurate schedule can be determined</td> | ||
− | <td>Maintenance data sheet</td> | + | <td>[https://www.njstormwater.org/pdf/StormPro_Certification_20150120.pdf Maintenance data sheet]</td> |
<td></td> | <td></td> | ||
<td>Sediment should be removed when sediment depth in first chamber is 50% of design sediment storage depth or at least once per year</td> | <td>Sediment should be removed when sediment depth in first chamber is 50% of design sediment storage depth or at least once per year</td> | ||
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<td></td> | <td></td> | ||
<td>At least every 6 months initially, then site specific</td> | <td>At least every 6 months initially, then site specific</td> | ||
− | <td>Maintenance instructions</td> | + | <td>[https://baysaver.com/wp-content/uploads/2018/04/BaySeparator-Technical-and-Design-Manual.pdf Maintenance instructions]</td> |
<td></td> | <td></td> | ||
<td>Cleaning recommended every 12-36 months or when 2 feet of sediment have accumulated</td> | <td>Cleaning recommended every 12-36 months or when 2 feet of sediment have accumulated</td> |
Above ground and below grade storage and settling - installation and maintenance recommendations
Link to this table
Device | Installation notes | Frequency of inspections | Maintenance checklist (link) | Permitted on private land/ Maintenance agreement recommended | Practices for minimizing sediment and trash buildup | Practices for minimizing erosion | Cost considerations (equipment needed and man hours) |
---|---|---|---|---|---|---|---|
Pretreatment row on underground storage/filtration | no data | At least every 6 months for first year of operation, then varies by location | Periodically remove sediment by back-flushing water and vacuuming manhole sump | Vacuum truck | |||
StormTech Isolator Row | Installation instructions available here. | At least every 6 months for first year of operation, then varies by location | Step by step maintenance procedures | Clean-out when average depth of sediment exceeds 3 inches | Vacuum/JetVac combination vehicle | ||
Settling chamber/vault | Remove sediment once depth reaches 6 inches or more | ||||||
Oil/water/grit separators | After every major storm but at least once per month | Clean out at least twice per year | |||||
Hydro Dry Screen | Every 3-6 months during first year, then site specific | Maintenance and inspection checklist | Remove sediment once depth exceeds maximum clean-out depth | Vacuum truck | |||
Suntree Nutrient Separating Baffle Box (NSBB) | After each runoff event initially, then at least quarterly. Local and State regulation may require every 90 days | Inspection and maintenance checklist | Vacuum out sediment chambers when sediment accumulation exceeds 50% storage volume | Vacuum truck | |||
Manhole Baffle Box | Frequently for first two years following installation, then site specific | Fully cleaned at least once per year | Vacuum truck; One half day; Average cost $450 | ||||
Environment 21 StormPro | At least quarterly until a more accurate schedule can be determined | Maintenance data sheet | Sediment should be removed when sediment depth in first chamber is 50% of design sediment storage depth or at least once per year | Truck-mounted sewer and catch basin cleaner with vacuum pump | |||
BaySeparator by BaySaver | At least every 6 months initially, then site specific | Maintenance instructions | Cleaning recommended every 12-36 months or when 2 feet of sediment have accumulated | Vacuum truck | |||
Sump Manhole with SAFL Baffle | 45 minute installation | Three times per year for first two years | Sediment removed before it reaches the bottom of the SAFL baffle | Vacuum truck | |||
Deep sump catch basin | Four times per year and at the end of foliage and snow- removal seasons | Four times per year or when deposit depth is greater than ½ depth from bottom of invert to lowest pipe | Hood required | Vacuum truck or clamshell bucket | |||
Forebay/pre-settling basin | Hard floor (concrete or grouted stone) allows definition of bottom and ease of maintenance. Provide appropriate stabilized maintenance access for heavier equipment at no more than 2% cross slope and no more than 10% longitudinal slope | Monthly | Four times per year or when sediment depth is >3 ft. A hard bottom such as concrete facilitates removal, during design ensure forebay is vehicle accessible | Forebay should be designed to withstand 2-yr and 10-yr velocities without scouring | Vacuum truck skid-loader, or backhoe |