Volume 2-05, Chapter 3 - City of Wichita

Section 3.3.1 - Proprietary Treatment Systems
3.3.1 Proprietary Treatment Systems Secondary Water Quality Facility
Description: Manufactured structural control systems
available from commercial vendors designed to treat
stormwater runoff.
Example of a manhole media filtration system (Park
Environmental Equipment)
KEY CONSIDERATIONS
DESIGN CRITERIA:
• Independent performance data must be available to prove
a demonstrated capability of meeting claimed TSS
removal performance
• System or device must be appropriate for use in
Sedgwick County, Kansas conditions
ADVANTAGES / BENEFITS:
• Typically small space requirement
• Can often remove coarse sediments well
DISADVANTAGES / LIMITATIONS:
• Depending on the proprietary system, there may be:
• Limited performance data;
• Application constraints such as poor removal of fine
sediment;
• High maintenance requirements;
• Higher costs than other structural control alternatives.
• Installation and operations/maintenance requirements
must be understood by all parties approving, owning,
using and maintaining the system or device in question
STORMWATER MANAGEMENT
SUITABILITY
Water Quality Protection
Channel Protection
On-Site Flood Control
Downstream
IMPLEMENTATION CONSIDERATIONS
L
H
H
Land Requirements
Relative Capital Costs
Maintenance Burden
Residential Subdivision Use: Depends
on the specific proprietary structural
control
High Density/Ultra-Urban: Yes
Drainage Area: Depends on the specific
proprietary structural control
Soils: No restrictions
L=Low M=Moderate H=High
Note: It is the policy of this Manual not to recommend any specific commercial vendors for proprietary systems.
However, this section is being included in order to provide a base rationale for approving the use of a proprietary
system or practice.
Volume 2, Technical Guidance Page 3 - 147