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Screening and straining devices - system and component sizing
...ges/Handouts/RAIN_GUARDIAN_BUNKER_1'_TYPICAL_DETAIL_11X17.pdf see detailed schematic]</td> ...ges/Handouts/RAIN_GUARDIAN_BUNKER_1'_TYPICAL_DETAIL_11X17.pdf See detailed schematic]</td>

2 KB (389 words) - 18:20, 3 August 2022
Stormwater filtration BMPs – selection considerations
<th>Pretreatment 4</th> [[File:Step pool schematic.png|100px|alt=step pool schematic]]</td>

3 KB (447 words) - 15:08, 2 August 2022
Pretreatment - Above ground and below grade storage and settling devices
...humb|alt=settling practice schematic|Proprietary example of a pretreatment (isolator) row on underground storage/filtration system by StormTech. The r Forebays are small bodies of water positioned just upstream of a larger pretreatment or treatment area. They slow the water allowing for settling of larger sedi

7 KB (1,002 words) - 23:42, 5 December 2022
Types of iron enhanced sand filter
...ips."> [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''pretreatment'''] per the MPCA’s [https://stormwater.pca.state.mn.us/index.php?t ...on enhanced sand filter basin|Iron-enhanced sand filter basin schematic showing parameters used to calculate the treatment volume capacity.</font s

7 KB (1,032 words) - 22:42, 23 November 2022
Filtration Summary Table
<th>Pretreatment 4</th> [[File:Step pool schematic.png|100px|alt=step pool schematic]]</td>

4 KB (692 words) - 18:22, 13 December 2022
Common pre-storage practices used in stormwater harvesting and use systems
[[File:Bioretention schematic underdrain.png|thumb|150px|alt=schematic showing biofiltration system.]]</td> ...mance assessment can be found [http://stormwater.pca.state.mn.us/index.php/Pretreatment here].</td>

6 KB (924 words) - 19:45, 3 August 2022
Stormwater sedimentation Best Management Practices
[[File:Constructed pond 1 for credit page.jpg|thumb|200px|alt=schematic of constructed pond/wetland|Constructed ponds and constructed [[Category:Level 3 - Best management practices/Pretreatment practices/Settling devices]]

1 KB (188 words) - 01:08, 8 February 2023
Pre-treatment considerations for stormwater infiltration
...eatment]] can remove debris and coarser sediments in an easier-to-maintain pretreatment device that will extend the life and reduce maintenance for the infiltratio ...treatment be installed upstream of an infiltration BMP. In all other cases pretreatment is highly recommended.

10 KB (1,453 words) - 20:44, 2 February 2023
Design criteria for iron enhanced sand filter
{{alert|For projects covered under a Construction Stormwater permit, pretreatment is Required for sand filtration beds.|alert-danger}} *providing [[Glossary#P|pretreatment]] (''REQUIRED''); and

12 KB (1,856 words) - 19:00, 28 December 2022
Hydrodynamic devices
...ynamic device Courtesy of Minneapolis Public Works Department|Schematic hydrodynamic device Courtesy of Minneapolis Public Works Department</font s ...tal suspended solids removal requirement, then the device could be used as pretreatment or supplemental to another stormwater practice. No single, stand alone devi

5 KB (749 words) - 22:52, 3 December 2022
Requirements, recommendations and information for using sand filter as a BMP in the MIDS calculator
...Note that the user must include the BMP receiving the routed water in the Schematic or the BMP will not appear in the dropdown box. **Pretreatment less than 25% of water quality volume, or

15 KB (2,395 words) - 01:30, 23 December 2022
Overview and methods of pretreatment
...water.pca.state.mn.us/index.php?title=Design_criteria_for_stormwater_ponds#Pretreatment forebays].''' ...atment techniques keep a BMP from being overloaded, primarily by sediment. Pretreatment is also required for post-construction practices covered under the [https:/

22 KB (3,030 words) - 22:32, 28 January 2023
Overview for permeable pavement
...ration into permeable pavement during and after a rain event.|Schematic showing the process of infiltration into permeable pavement during and afte ==Pretreatment considerations==

15 KB (2,185 words) - 19:28, 27 December 2022
Operation and maintenance (O&M) of filter strips
...ips."> [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''pretreatment'''] vegetated filter strip ...ips."> [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''pretreatment'''] to other practices like <span title="Bioretention is a terrestri

27 KB (3,909 words) - 13:37, 30 December 2022
Stormwater infiltration
...gradation. Note that inflow into the practice has undergone [[Pretreatment|pretreatment]] and that once the practice is filled, runoff bypasses the practice rather **[[Pre-treatment considerations for stormwater infiltration|Pretreatment considerations for stormwater infiltration]]

10 KB (1,412 words) - 03:39, 13 February 2023
Requirements, recommendations and information for using bioretention BMPs in the MIDS calculator
...e of inputs needed for bioinfiltration in the MIDS calculator|Schematic showing the inputs needed for bioinfiltration in the MIDS calculator. The e [[File:MIDS bioinfiltration parameters.png|300px|thumb|alt=schematic of MIDS calculator inputs|Screen shot from MIDS calculator sho

23 KB (3,556 words) - 13:18, 29 January 2023
Types of sand (media) filters
...chamber. The chamber may be either wet or dry, and is generally used for [[Pretreatment]]. Runoff is then distributed into the second chamber, which consists of a ...ine or off-line in the storm drain system. The first chamber is used for [[Pretreatment]] and relies on a wet pool as well as temporary [[Glossary#R|runoff]] stora

9 KB (1,374 words) - 18:59, 31 January 2023
Requirements, recommendations and information for using infiltration basin/underground infiltration BMPs in the MIDS calculator
...tream BMP. The User must include the BMP receiving the routed water in the Schematic or the BMP will not appear in the dropdown box. ...ustrating how pollutants are treated with the MIDS calculator|Schematic illustrating how the MIDS calculator estimates pollutant load reductions.

22 KB (3,347 words) - 13:33, 29 January 2023
Design, construction, operation and maintenance specifications for pretreatment vegetated filter strips
...This page provides information on design, construction, and maintenance of pretreatment vegetated filter strips. ...px|thumb|alt=filter strip schematic|Plan view schematic for a pretreatment vegetated filter strip, indicating that slope should be 0 percent perpendic

34 KB (4,831 words) - 14:19, 6 February 2023
Terminology for swales
*vegetated filter or filter strip: [[Pretreatment|pretreatment]] practices *vegetated swale: can be used for pretreatment or any of the five variants discussed in this section

9 KB (1,369 words) - 00:06, 31 January 2023
Requirements, recommendations and information for using permeable pavement BMPs in the MIDS calculator
...tream BMP. The User must include the BMP receiving the routed water in the Schematic or the BMP will not appear in the dropdown box. ...how pollutant reductions are achieved for permeable pavement|Schematic showing how pollutant reductions are achieved for permeable pavement in the

20 KB (3,173 words) - 18:54, 23 November 2022
Design, construction, operation and maintenance specifications for vegetated filter strips
...IRECT [[Design, construction, operation and maintenance specifications for pretreatment vegetated filter strips]] ...This page provides information on design, construction, and maintenance of pretreatment vegetated filter strips.

36 KB (5,202 words) - 14:24, 6 February 2023
Requirements, recommendations and information for using bioretention with no underdrain BMPs in the MIDS calculator
...Note that the user must include the BMP receiving the routed water in the Schematic or the BMP will not appear in the dropdown box. ...pollutants are treated by bioinfiltration in MIDS calculator|Schematic showing how pollutants are treated by bioretention without an underdrain (b

23 KB (3,549 words) - 18:50, 23 November 2022
Stormwater preatreatment selection information
...ce. Each section contains a table summarizing the characteristics for each pretreatment practice within a specific type of device. ...n_information#Other_pretreatment_water_quality_devices_and_practices Other pretreatment water quality devices and practices]

26 KB (3,853 words) - 18:47, 2 February 2023
Scenario for developing a stormwater treatment train for a parking lot
[[File:Parking Lot Scenario Base.PNG|thumb|300 px|alt=schematic illustrating Parking Lot Scenario Base|Site layout for a treat ...s Swales and strips] || X || Swales and strips may serve as a good form of pretreatment and conveyance to BMPs downstream in the treatment train.

36 KB (5,210 words) - 22:51, 12 December 2022
Case studies for infiltration
...nt resuspension and loss of fine sediments into the infiltration system. [[Pretreatment]] is consistent with the Minnesota Stormwater Manual guidance. :'''Pretreatment:''' The Preserver (Momentum Environmental) baffled sump catch basin

19 KB (2,715 words) - 20:15, 12 December 2022
Table of Contents test page
...tle=Category:Level_2_-_Best_management_practices/Pretreatment_practices '''Pretreatment practices'''] ...within a cylindrical chamber. This page provides links to pages addressing pretreatment hydrodynamic separation devices."> [https://stormwater.pca.state.mn.us/inde

89 KB (12,875 words) - 13:29, 9 February 2023
Overview for pretreatment settling devices
...proprietary settling.png|300px|thumb|alt=image of catch basin|Schematic of a catch basin. Stormwater enters through the grate or inflow pipe and la ...and biological treatment. Stormwater management processes not provided in pretreatment vegetated filter strips include filtration and sorption."> [https://stormwa

33 KB (4,708 words) - 18:38, 13 December 2022
Stormwater Manual Table of Contents
...tle=Category:Level_2_-_Best_management_practices/Pretreatment_practices '''Pretreatment practices'''] ...within a cylindrical chamber. This page provides links to pages addressing pretreatment hydrodynamic separation devices."> [https://stormwater.pca.state.mn.us/inde

89 KB (12,945 words) - 15:54, 29 August 2023
Requirements, recommendations and information for using underground infiltration BMPs in the MIDS calculator
...tream BMP. The User must include the BMP receiving the routed water in the Schematic or the BMP will not appear in the dropdown box. ...s pollutant load reduction for infiltrated and overflow water|Schematic shows pollutant load reduction for infiltrated and overflow water</font siz

24 KB (3,705 words) - 19:11, 23 November 2022
Case studies for pretreatment
...ips."> [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''pretreatment'''] stormwater practices. Included are case studies for vegetated an ...l stormwater BMPs. Concentrated or channelized flow is not appropriate for pretreatment vegetated filter strips.

65 KB (9,159 words) - 20:14, 28 December 2022
Technical basis for pretreatment sizing for basins and filter strips
...|200px|left|thumb|alt=schematic pretreatment|A properly sized pretreatment practice, such as this basin, allows for sediment to settle while preventin <th><center>'''Quick Guide for pretreatment sizing of basins'''</center></th>

44 KB (6,960 words) - 19:47, 20 February 2023
Scenario for developing a stormwater treatment train for a retrofit site
[[file:Retrofit Scenario Base.PNG|300px|thumb|alt=schematic showing layout for an urban retrofit treatment train scenario| ...zed in the following table and the existing site layout can be seen in the schematic to the right.

31 KB (4,411 words) - 13:21, 12 February 2023
Overview for infiltration
...tices.png|300px|thumb|alt=schematic of infiltration practices|Schematic illustrating A)infiltration trench, B) underground infiltration, C) infiltr ...ips."> [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''pretreatment'''] to protect the groundwater quality, particularly if soil infiltr

23 KB (3,321 words) - 19:29, 11 August 2022
Requirements, recommendations and information for using swale side slope as a BMP in the MIDS calculator
[[File:Symbol for swale side slope.jpg|300px|thumb|alt=Schematic used as a symbol for swale side slope|Symbol for Swale side sl [[File:Swale side slope BMP parameters tab.png|300px|thumb|alt=Schematic used to show Swale side slope BMP parameters tab|Screen shot o

16 KB (2,575 words) - 13:31, 29 January 2023
Green Infrastructure benefits of harvest and use/re-use practices
...System Schematic|Example Stormwater Harvesting and Use System Schematic]] ...tormwater and rainwater harvest and use/reuse]]. Also see information on [[Pretreatment]].

22 KB (2,986 words) - 18:16, 5 December 2022
Requirements, recommendations and information for using trees as a BMP in the MIDS calculator
[[File:watershed tab tree trench no underdrain.png|300px|thumb|alt=schematic of watershed tab for tree trench in MIDS calculator|Screen sho ...Note that the user must include the BMP receiving the routed water in the Schematic or the BMP will not appear in the dropdown box.

33 KB (5,371 words) - 19:08, 23 November 2022
Requirements, recommendations and information for using swale without an underdrain as a BMP in the MIDS calculator
...hat the BMP receiving the routed water must be included by the user in the Schematic tab or the BMP will not appear in the dropdown box. ...pollutant load reductions for infiltrated and overflow water|Schematic showing the mechanism for pollutant load reductions for infiltrated and ove

33 KB (5,347 words) - 13:38, 29 January 2023
Scenario for developing a stormwater treatment train for a site with limited infiltration capacity
[[file:Limited infiltration site layout.jpg|300px|thumb|alt=schematic showing layout for treatment train scenario|Site layout for a ...s Swales and strips] || X || Swales and strips may serve as a good form of pretreatment or conveyance to BMPs downstream in the treatment train

38 KB (5,550 words) - 13:29, 12 February 2023
Information on pollutant removal by BMPs
...chematic of pollutant removal mechanism swale with underdrain|Schematic of pollutant removal mechanisms for a dry swale with an underdrain.</font s *Pretreatment

36 KB (5,227 words) - 00:44, 23 January 2023
Design criteria for wet swale (wetland channel)
*providing [[Glossary#P|pretreatment]] (''REQUIRED''); and ====Pretreatment====

25 KB (3,758 words) - 17:15, 29 December 2022
Design criteria for infiltration
...tices.png|300px|thumb|alt=schematic of infiltration practices|Schematic illustrating A)infiltration trench, B) underground infiltration, C) infiltr ...ips."> [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''pretreatment'''] (''REQUIRED''); and

62 KB (9,180 words) - 18:45, 29 December 2022
Requirements, recommendations and information for using bioretention with an underdrain BMPs in the MIDS calculator
...Note that the user must include the BMP receiving the routed water in the Schematic or the BMP will not appear in the dropdown box. ...ted and filtration in Bioretention basin (with an underdrain)|Schematic showing how pollutant load reductions are calculated for Bioretention basin

55 KB (8,696 words) - 13:27, 29 January 2023
Design criteria for dry swale (grass swale)
*providing [[Glossary#P|pretreatment]] (''REQUIRED''); and ...t=schematic showing horizontal and vertical setback distances|Schematic showing some horizontal and vertical separation distances from an infiltrat

43 KB (6,506 words) - 16:08, 29 December 2022
Decision tools for stormwater infiltration
...hotspots#Determining_if_a_PSH_is_a_hotspot guidance]) and [[Pre-treatment|pretreatment]] practices cannot be used to achieve acceptable pollutant concentrations i ...thumb|300px|alt=schematic used for infiltration basin example|Schematic showing dimensions for an infiltration basin. The average cross-sectional a

23 KB (3,334 words) - 17:06, 11 January 2023
Scenario for developing a stormwater treatment train for constructed ponds in new development
...s schematic shows a New Residential Development Scenario Base|Schematic illustrating the site layout for this example. The site consists of 40 acr ...ater ponds in series approach. The existing site layout can be seen in the schematic to the right. The table below describes the site conditions for this new de

44 KB (6,330 words) - 13:35, 12 February 2023
Requirements, recommendations and information for using trees with an underdrain as a BMP in the MIDS calculator
...schematic of watershed tab for tree trench in MIDS calculator|Schematic of the Watershed tab for tree trench system-tree box BMP in the MIDS calcul ...ummary tab for tree trench with underdrain in MIDS calculator|Schematic of the BMP Summary tab for tree trench system-tree box with an underdrain B

44 KB (7,312 words) - 13:41, 29 January 2023
Requirements, recommendations and information for using swale with an underdrain as a BMP in the MIDS calculator
...px|thumb|alt=Schematic of Watershed tab swale with underdrain|Schematic of Watershed tab for Swale main channel (with underdrain). The user must in ...umb|alt=Schematic of Swale with underdrain BMP parameters tab|Schematic of BMP parameters tab for Swale main channel (with underdrain). The user mu

31 KB (4,982 words) - 13:36, 29 January 2023
BMPs for stormwater filtration
...= < 30%; Medium = 30-65%; High = 65 -100%); 4 Assumes adequate pretreatment; 5 Certain [http://stormwater.pca.state.mn.us/index.php/Design_c ...= < 30%; Medium = 30-65%; High = 65 -100%); 4 Assumes adequate pretreatment; 5 Insufficient information 

33 KB (4,581 words) - 15:04, 11 January 2023
Design criteria for permeable pavement
...ss section and basic components of a pervious concrete system|Schematic illustrating typical pervious concrete cross section and basic components o ...ss section and basic components of a pervious concrete system|Schematic illustrating typical porous asphalt cross section and basic components of a

44 KB (6,544 words) - 17:30, 29 December 2022
Phosphorus in stormwater
...speciation.png|500px|thumb|alt=image of phosphorus speciation|Schematic showing analysis for different forms of phosphorus in water. Filtered phosp ...ips."> [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''pretreatment'''] for <span title="a stationary and permanent BMP that is designed

44 KB (6,189 words) - 13:56, 11 February 2023
What's New
...treatment sizing for basins and filters strips]] and [[Technical basis for pretreatment sizing for basins and filter strips]] ...pecific recommendations for managing and disposing sediment collected from pretreatment practices. This page provide guidance, a literature review, and a summary o

60 KB (8,737 words) - 18:14, 19 July 2023
Minnesota Stormwater Manual email Updates
...Section 2.jpg|300px|thumb|alt=schematic of infiltration basin|Schematic of an infiltration basin]] ...ng|thumb|300px|alt=Infiltration trench Detailed Cross Section|Schematic showing an infiltration trench.]]

73 KB (10,517 words) - 17:44, 19 July 2023
Design criteria for filtration
*providing [[Glossary#P|pretreatment]] (''REQUIRED''); and ===Pretreatment===

42 KB (6,383 words) - 18:54, 29 December 2022
Design criteria for high-gradient stormwater step-pool swale
...step pool.png|300px|thumb|alt=schematic filtration step pool|Schematic of a filtration step pool (underdrain present). Click on image to enlarge.< ...tep pool.png|300px|thumb|alt=schematic infiltration step pool|Schematic of infiltration step pool (no underdrain). Click on image to enlarge.</font

65 KB (10,011 words) - 17:11, 29 December 2022
Design criteria for stormwater ponds
...spots|potential stormwater hotspots]] (PSHs) have excellent [[Pretreatment|pretreatment]] practices provided. In some cases (depending on the land use and associat ...retreatment]] be provided to reduce the future pond maintenance burden. If pretreatment has not been provided in the contributing watershed, then it is ''Recommend

50 KB (7,726 words) - 18:02, 29 December 2022
Overview for dry swale (grass swale)
...t=schematic showing horizontal and vertical setback distances|Schematic showing some horizontal and vertical separation distances from an infiltrat ...ips."> [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''pretreatment'''] features have not been properly designed to handle such an incre

23 KB (3,441 words) - 02:41, 15 December 2022
Calculating credits for sand filter
...icle.jpg|thumb|300px|alt=schematic showing sand filter system|Schematic illustrating the components and processes for a sand filter system.Schematic illustrating the components and processes for an enhanced sand filter syste

51 KB (7,365 words) - 20:08, 22 November 2022
Calculating credits for sand (media) filters
...icle.jpg|thumb|300px|alt=schematic showing sand filter system|Schematic illustrating the components and processes for a sand filter system.Schematic illustrating the components and processes for an enhanced sand filter syste

51 KB (7,398 words) - 14:29, 2 February 2023
Design criteria for bioretention
*providing [[Glossary#P|pretreatment]] (''REQUIRED''); and ...ips."> [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''pretreatment'''] and the basin is properly designed, [[Construction specification

64 KB (9,626 words) - 17:17, 29 December 2022
Calculating credits for infiltration
...ng an infiltration basin. Note that inflow into the practice has undergone pretreatment. Once the infiltration basin is filled, water bypasses rather than enters t ...e Manual. Because of their high susceptibility of failure due to clogging, pretreatment is REQUIRED in all infiltration designs.

42 KB (5,899 words) - 14:22, 26 July 2022
BMPs for stormwater infiltration
...nt BMPs, normally in stand-alone applications, however can also be used as pretreatment for infiltration, rainwater harvesting, and detention."> '''tree boxes'''</ ...rvest and use/reuse|stormwater harvest and reuse systems]], [[Overview for pretreatment vegetated filter strips|vegetated filter strips]] and swales without check

43 KB (6,049 words) - 17:06, 1 February 2023
Pollutant fate and transport in stormwater infiltration systems
[[file:Schematic showing location of pollutant removal.jpg|300px|thumb|alt=schematic showing location where pollutants are removed|Pollution remova ...m the stormwater prior to infiltration. To accomplish this, an appropriate pretreatment technique is needed. Any runoff containing toxic material that will not bin

42 KB (6,145 words) - 22:10, 20 February 2023
Design criteria for stormwater wetlands
==Pretreatment== ...file.jpg|thumb|300px|alt=Schematic of shallow wetland profile|Schematic showing a shallow wetland profile]]

34 KB (5,308 words) - 18:50, 29 December 2022
Overview for high-gradient stormwater step-pool swale
...t=schematic showing horizontal and vertical setback distances|Schematic showing some horizontal and vertical separation distances from an infiltrat ...ips."> [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''pretreatment'''] features have not been properly designed to handle such an incre

25 KB (3,698 words) - 02:39, 15 December 2022
Design considerations for green stormwater infrastructure best management practices
...ips."> [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''pretreatment'''] ...ips."> [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''pretreatment'''] to minimize pollutant loading that might impair other benefits,

58 KB (8,166 words) - 17:00, 21 December 2022
Overview for stormwater and rainwater harvest and use/reuse
...System Schematic|Example Stormwater Harvesting and Use System Schematic]] ...ally has four components (See Example Stormwater Harvesting and Use System Schematic at right):

37 KB (5,490 words) - 12:41, 14 February 2023
Green stormwater infrastructure - planning case studies
...Highland bridge.jpg|300px|thumb|alt=Highland Bridge schematic|Schematic illustrating plans for the Highland Bridge project. [https://www.capitolreg *Pretreatment Features

27 KB (4,063 words) - 16:42, 3 January 2023
Calculating credits for bioretention
....png|thumb|300px|alt=schematic showing bioinfiltration system|Schematic illustrating the components and processes for a bioinfiltration system.</fo ...in.png|thumb|300px|alt=schematic showing biofiltration system|Schematic illustrating the components and processes for a biofiltration system.</font

70 KB (10,269 words) - 20:36, 17 November 2022
Calculating credits for infiltration basin
...jpg|thumb|300px|alt=Infiltration Basin Detailed Cross Section|Schematic showing an infiltration basin.]] ...ng|thumb|300px|alt=Infiltration trench Detailed Cross Section|Schematic showing an infiltration trench.]]

37 KB (5,249 words) - 16:07, 18 July 2022
Calculating credits for wet swale (wetland channel)
...ips."> [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''pretreatment'''] practices. Wet swales are commonly used for drainage areas less ...be used at various locations within a treatment train] and can be used for pretreatment, conveyance, and/or primary treatment.

36 KB (5,160 words) - 22:22, 23 November 2022
Calculating credits for tree trenches and tree boxes
...ips."> [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''Pretreatment'''] is REQUIRED for all bioretention facilities, including tree-base ...pollutant reductions from tree trench with an underdrain BMP|Schematic illustrating how pollutant reductions (TSS, dissolved and particulate P) ar

75 KB (11,201 words) - 18:43, 13 December 2022
Construction stormwater treatment - dewatering, including chemical treatment and sediment filtration
...ated stormwater flows via contact with a polymer-containing sock or block. Pretreatment usually involves the filtration and/or sedimentation processes described ab ...isting detention basin for pretreatment, is often more cost effective than pretreatment tanks. (Source: Federal Highway Administration US DOT, 2008)]]

39 KB (5,599 words) - 14:09, 17 January 2023
Operation and maintenance (O&M) of tree trenches and tree boxes
[[File:Central corridor cross section B.jpg|thumb|300px|alt=schematic cross-section of Central Corridor Light Rail tree system|Cross ...ips."> [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''pretreatment'''] devices before installing any tree boxes or trenches. Depending

28 KB (3,985 words) - 16:12, 9 February 2023
Minnesota GreenStep Cities Stormwater Assessment guidance and supporting information
...ment_guidance_and_supporting_information#30._Pretreatment_sizing_standards Pretreatment sizing standards] [[File:Parking Lot Scenario Base.PNG|thumb|300 px|alt=schematic illustrating Parking Lot Scenario Base|Site layout for a treat

83 KB (11,574 words) - 16:07, 23 February 2023
Operation and maintenance considerations for vegetation in stormwater management
...mb|alt=Schematic illustrating the adaptive management process|Schematic illustrating the adaptive management process. Source:[https://www.pca.state ...2.jpg|thumb|400 px|alt=schematic of drawdown and bounce|This schematic defines and demonstrates the concept of bounce and drawdown within an infil

66 KB (9,956 words) - 14:52, 7 February 2023
Calculating credits for stormwater and rainwater harvest and use/reuse
...shows Example Stormwater Harvesting and Use System Schematic|Schematic illustrating the basic concepts for a harvest and use-reuse system. Stormwa {{alert|Pretreatment is required for all infiltration practices|alert-danger}}

45 KB (6,471 words) - 21:16, 28 July 2022
Guidance and examples for using the MPCA Estimator
...ips."> [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''pretreatment'''] ...ample image Step 1.png|300px|thumb|alt=image used for example|Schematic used for subwatershed example.]]

98 KB (15,156 words) - 16:40, 5 January 2023
Calculating credits for dry swale (grass swale)
...e credit picture 1.jpg|thumb|300px|alt=schematic of dry swale|Schematic showing characteristics of a dry swale.]] {{alert|[[Pretreatment]] is required for all filtration and infiltration practices|alert-danger}}

65 KB (9,893 words) - 13:52, 29 December 2022
Calculating credits for stormwater ponds
...age.jpg|thumb|300px|alt=schematic of constructed pond/wetland|Schematic showing characteristics of a constructed pond or constructed wetland. [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''pretreatment'''] practices, such as oil/water separators, swirl concentrators, an

59 KB (8,449 words) - 18:13, 1 August 2022
TP and TSS credits and guidance for manufactured treatment devices (mtds)
...pretreatment devices, [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment link here]. [[File:Infiltration basin schematic..jpg |thumb|400px|alt=Infiltration basin Detailed Cross Section|<font size=

86 KB (12,639 words) - 14:42, 1 January 2024
Channel protection criteria (Vcp)
...l protection storage can be incorporated into the non-pond BMP if adequate pretreatment is provided, and if an outlet structure is sized to ensure that the infiltr ...nnel cross section schematic|Downstream channel cross section schematic.]]

41 KB (6,386 words) - 19:17, 6 December 2022
Design criteria for stormwater and rainwater harvest and use/reuse
*Develop schematic designs and, if a licensed engineer is hired, have them review the schemati ...Treatment typically occurs with practices described in the [[Pretreatment|pretreatment]] section of this manual.

113 KB (16,329 words) - 17:02, 29 December 2022
Design guidelines for soil characteristics - tree trenches and tree boxes
*providing [[Glossary#P|pretreatment]] (''REQUIRED''); and ...ematic for infiltration from biofiltration with an underdrain|Schematic showing fate of water in a tree trench with a raised underdrain. Soil volu

62 KB (9,245 words) - 12:30, 14 February 2023
Cold climate impact on runoff management
 ...a high amount of trash including floatables that will additionally burden pretreatment structures or move into the BMP.

78 KB (12,338 words) - 13:58, 20 February 2023

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