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#Design, assemble, install, operate, and maintain Contech The Jellyfish systems in accordance with applicable [https://stormwater.pca.state.mn.us/index.php?title=Contech_Jellyfish_Filter#Links manuals]. | #Design, assemble, install, operate, and maintain Contech The Jellyfish systems in accordance with applicable [https://stormwater.pca.state.mn.us/index.php?title=Contech_Jellyfish_Filter#Links manuals]. | ||
#The maximum flow rates through the devices are specified below. | #The maximum flow rates through the devices are specified below. | ||
− | ##Basic | + | ##Basic and phosphorus treatment: Sized at a hydraulic loading rate of no greater than 0.21 gpm/sf filter surface for hi-flo cartridges and 0.11 gpm/sf filter surface for draindown cartridges. |
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###Effective Cartridge height 54 in, Design Treatment Flow Rate: Hi-Flo 80 gpm, Draindown 40 gpm; Design Sediment Mass Loading Capacity: Hi-Flo 125 lbs, Draindown 63 lbs | ###Effective Cartridge height 54 in, Design Treatment Flow Rate: Hi-Flo 80 gpm, Draindown 40 gpm; Design Sediment Mass Loading Capacity: Hi-Flo 125 lbs, Draindown 63 lbs | ||
###Effective Cartridge height 40 in, Design Treatment Flow Rate: Hi-Flo 60 gpm, Draindown 30 gpm; Design Sediment Mass Loading Capacity: Hi-Flo 93 lbs, Draindown 46 lbs | ###Effective Cartridge height 40 in, Design Treatment Flow Rate: Hi-Flo 60 gpm, Draindown 30 gpm; Design Sediment Mass Loading Capacity: Hi-Flo 93 lbs, Draindown 46 lbs | ||
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MPCA compiled data from General Use Level Designation Technical Evaluation Report. Below are summary statistics for the device. | MPCA compiled data from General Use Level Designation Technical Evaluation Report. Below are summary statistics for the device. | ||
− | *Median TP inflow - 0. | + | *Median TP inflow - 0.338 mg/L |
− | *Median TP removal (all data with concentrations > 0.05 mg/L) - | + | *Median TP removal (all data with concentrations > 0.05 mg/L) - 75.2% |
− | *95% lower confidence limit TP removal (all data with concentrations > 0.05 mg/L) - | + | *95% lower confidence limit TP removal (all data with concentrations > 0.05 mg/L) - 68.2% |
− | *Median TP removal (data meeting TAPE criteria) - | + | *Median TP removal (data meeting TAPE criteria) - 71.0% |
− | *95% lower confidence limit TP removal (data meeting TAPE criteria) - | + | *95% lower confidence limit TP removal (data meeting TAPE criteria) - 66.8% |
− | *Median TSS removal (all data) - | + | *Median TSS removal (all data) - 86.2% |
− | *95% lower confidence limit TSS removal (all data) - | + | *95% lower confidence limit TSS removal (all data) - 74.1% |
TAPE means and medians represent values meeting TAPE criteria for TP (inflow concentrations of 0.1 to 0.5 mg/L) and TSS (inflow concentrations greater than 20 mg/L). Of the 14 samples, TAPE medians and means represent 10 samples for TP and 13 samples for TSS. | TAPE means and medians represent values meeting TAPE criteria for TP (inflow concentrations of 0.1 to 0.5 mg/L) and TSS (inflow concentrations greater than 20 mg/L). Of the 14 samples, TAPE medians and means represent 10 samples for TP and 13 samples for TSS. | ||
CONTECH Engineered Solutions, LLC. The Jellyfish is an engineered filtration system designed to filter pollutants from stormwater runoff. It is classified as a manufactured treatment device (mtd).
This page provides information on pollutant removal credits for Contech The Jellyfish, links to supporting information, and links to information on system design, inspection, operation, and maintenance.
When conditions described in this section are met, applicable Contech The Jellyfish systems are approved for the following removals for total suspended solids (TSS) and total phosphorus (TP).
For more information on credits, see TP and TSS credits and guidance for manufactured treatment devices (mtds)
For a discussion of Contech The Jellyfish configurations see appropriate configurations in the design, installation, and specification documents.
To receive the full credit, Contech The Jellyfish systems must comply with the following conditions.
Credits apply only to the water being treated by a device. The applicable treatment volume must be determined using one of the methods described here.
The Tier 1 credit equals the TAPE-approved credits. Tier 2 credit was determined by analyzing water quality data collected at the Lake Union Ship Canal Test Facility in Seattle, WA. The site consisted of 1.69 acres of impervious surface from parking and roadways areas. The unit size was 6 X 11 feet.
MPCA compiled data from General Use Level Designation Technical Evaluation Report. Below are summary statistics for the device.
TAPE means and medians represent values meeting TAPE criteria for TP (inflow concentrations of 0.1 to 0.5 mg/L) and TSS (inflow concentrations greater than 20 mg/L). Of the 14 samples, TAPE medians and means represent 10 samples for TP and 13 samples for TSS.
Meet the conditions specified for the appropriate TP and/or TSS credit.
Meet the following conditions, unless conditions for the appropriate TP and/or TSS credit are more stringent.
This page was last edited on 15 February 2023, at 18:15.