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#Systems are designed to treat a specified water quality volume or annual average runoff volume. The annual average runoff treated can be determined using [https://stormwater.pca.state.mn.us/index.php?title=TP_and_TSS_credits_and_guidance_for_manufactured_treatment_devices_(mtds)#Calculating_annual_volume_treated methods that are specified here]. | #Systems are designed to treat a specified water quality volume or annual average runoff volume. The annual average runoff treated can be determined using [https://stormwater.pca.state.mn.us/index.php?title=TP_and_TSS_credits_and_guidance_for_manufactured_treatment_devices_(mtds)#Calculating_annual_volume_treated methods that are specified here]. | ||
#Each site plan must undergo review before approval of the unit for site installation. | #Each site plan must undergo review before approval of the unit for site installation. | ||
− | #StormFilter media shall conform to the specifications described in [ Specifications] and shall be sourced from with no substitutions. | + | #StormFilter media shall conform to the specifications described in [https://stormwater.pca.state.mn.us/index.php?title=BaySaver_BayFilter_w/EMC_Media#Links Specifications] and shall be sourced from with no substitutions. |
− | #Follow maintenance procedures given in the most recent version of the [ Operation and Maintenance Manual]. | + | #Follow maintenance procedures given in the most recent version of the [https://stormwater.pca.state.mn.us/index.php?title=BaySaver_BayFilter_w/EMC_Media#Links Operation and Maintenance Manual]. |
#Install the BaySaver BayFilter in such a manner that flows exceeding the maximum BaySaver BayFilter operating rate are conveyed around the BaySaver BayFilter media and will not resuspend captured sediment. | #Install the BaySaver BayFilter in such a manner that flows exceeding the maximum BaySaver BayFilter operating rate are conveyed around the BaySaver BayFilter media and will not resuspend captured sediment. | ||
#Discharges from the BaySaver BayFilter units shall not cause or contribute to water quality standards violations in receiving waters. | #Discharges from the BaySaver BayFilter units shall not cause or contribute to water quality standards violations in receiving waters. | ||
− | *When applicable, adhere to use conditions provided in Washington State Department of Ecology's report (Ecology's Conditions of Use) [ GENERAL USE LEVEL | + | *When applicable, adhere to use conditions provided in Washington State Department of Ecology's report (Ecology's Conditions of Use) [https://fortress.wa.gov/ecy/ezshare/wq/tape/use_designations/BAYSAVERbayfilterEMCguld.pdf GENERAL USE LEVEL DESIGNATON FOR BASIC (TSS) AND PHOSPHORUS TREATMENT For Advanced Drainage Systems (ADS) (BaySaver Technologies, LLC) BayFilter™ System using Enhanced Media Cartridges (EMC)]. Note that some information in this report is specific to Washington State and not applicable to Minnesota. |
===Data analysis=== | ===Data analysis=== |
Advanced Drainage Systems, BaySaver Technologies BaySaver BayFilter with Enhanced Media Cartridge (EMC) 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 BaySaver BayFilter with Enhanced Media Cartridge, links to supporting information, and links to information on system design, inspection, operation, and maintenance.
When conditions described in this section are met, applicable BaySaver BayFilter with Enhanced Media Cartridge 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 StormFilter configurations see appropriate configurations in the Design Manual.
To receive the full credit, BaySaver BayFilter 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
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 22 samples, TAPE medians and means represent 16 samples for TP and 17 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.