nyuuzyou/wikis huggingface dataset:
CLI-ECA

The Municipal Consolidated Linear Infrastructure Environmental Compliance Approval (CLI-ECA) is a streamlined approval process for municipalities managing stormwater and Low Impact Development (LID) infrastructure. This guide offers step-by-step instructions to ensure compliance with CLI-ECA requirements.
==Step-by-Step Compliance Process==
===Step 1: Determine if Your Project Falls Under CLI-ECA===
Identify whether the proposed stormwater or LID project qualifies as a pre-authorized alteration under CLI-ECA. Common eligible projects include:
* Storm sewer upgrades or extensions
* Alterations to stormwater management facilities (e.g., wet ponds, dry ponds, wetlands)
* Implementation or modification of LID practices (e.g., bioretention, infiltration trenches, permeable pavements)
===Step 2: Review Design Criteria and Standards===
* Ensure project design follows **MECP’s Design Criteria for Sanitary Sewers, Storm Sewers, and Forcemains**.
* Incorporate stormwater treatment objectives from the Ontario Stormwater Management Planning and Design Guidance Manual (2003).
* Ensure LID features meet municipal and provincial standards for infiltration, flow control, and water quality treatment.
===Step 3: Complete Required Documentation===
Use the appropriate compliance forms based on project type:
Prepare a Design Report including:
* Engineering drawings
* Hydraulic calculations
* LID performance criteria
* Maintenance plans
===Step 4: Obtain Engineering and Owner Verification===
A Licensed Engineering Practitioner must verify that:
* The design aligns with CLI-ECA criteria.
* The system is designed for proper stormwater management without negative impacts.
The Municipal Owner must sign off on compliance forms confirming:
* The alteration does not result in adverse effects.
* It aligns with jurisdictional stormwater management objectives.
===Step 5: Submit a Director Notification (If Required)===
Some alterations require notification to the MECP Director within specific timeframes:
* 30 days after placing new works into service.
* 90 days if previously undocumented infrastructure is discovered.
The notification must include:
* Project description
* Verification documents
* Compliance assessment
===Step 6: Conduct Post-Construction Inspection and Verification===
* Inspect LID and stormwater systems to ensure they function as designed.
* Complete "Post-Construction Verification" on relevant forms.
* Document key performance indicators such as infiltration rates, flow control effectiveness, and pollutant removal efficiency.
===Step 7: Maintain Ongoing Compliance and Record-Keeping===
Establish a Stormwater System Maintenance Plan that includes:
* Routine inspections (e.g., sediment removal, vegetation management)
* Adaptive management strategies for system improvements
Retain compliance records for a minimum of 10 years.
Submit annual performance reports if required by municipal or provincial regulations.
==External links==
* MECP CLI-ECA website
* Design Guidelines For Sewage Works
* Stormwater Management Planning and Design Manual
Check dams: Gallery

MLSmith swale.jpg|Enhanced swale with rocky check dams and a metal overflow grate in Northgate Mall parking lot, Seattle. Photo credit: MLSmith
Checkdam.JPG|Bioswale with rock check dams to slow down the water, encouraging infiltration. Note the biodegradable erosion control blanket still in place. LSRCA headquarters, 2017
Check dam Miss Rd.jpg|Concrete check dam with armourstone to protect against erosion. Concrete colour blends well with surrounding stone. This dam extends to the full depth of the swale and has 25 mm ø weep holes below grade.
Check dam - Mississauga Road.JPG|A check dam in action, effectively pooling water. 
Mississauga Rd.gif|A swale during a rain event, with concrete check dams, armourstone, mulch and Tall grasses to slow down moving water (as shown in the .gif file) to promote infiltration in the feature.
Also see Jen's Pinterest board of check dams
Category:Gallery
Choker layer

In bioretention systems a choker layer of ≥ 100 mm depth is the recommended method to prevent migration of finer filter media into the underlying storage reservoir aggregate.
These same mid-sized granular materials are recommended for use in Stormwater planter underdrains and may be useful in the fine grading of foundations courses for permeable pavements.
Suitable materials include:
;High performance bedding (HPB)
:Clean, angular aggregate screened to between 6 and 10 mm. Widely available and designed specifically for drainage applications. Free from fines by definition. 
;HL 6
:Is a clean, angular aggregate screened between 10 and 20 mm. Free from fines by definition. 
;Pea Gravel
:Rounded natural aggregate, screened between 5 and 15 mm, and washed free from fines. 
In most scenarios, a geotextile layer is unnecessary and has been associated with rapid decline and clogging in some circumstances. 
category: materials
Compost

STEP are currently undertaking research into the quality of compost for use in LID installations.
Compost shall be stable, humus-like material produced from the aerobic decomposition of organic feedstocks, composted and cured until maturity. Compost shall be produced under the Compost Council of Canada’s Compost Quality Alliance (CQA) certification program through testing by an OMAFRA accredited soil laboratory, and certified as category ‘AA’ under Ontario Compost Quality Standards.
Specifications for category 'AA' product under Ontario Compost Quality Standards
Parameter 	Acceptable range
pH 	5.5 - 8.5
Soluble Salts (EC) 	< 4 mS/cm
Moisture Content 	< 50% by weight
Organic matter 	> 30% by dry weight
C/N ratio 	12 to 22
Pathogens 	See: MOECC 2012
Maturity 	See: MOECC 2012
Particle size 	100% < 12.7 mm (1/2”)
Foreign Material 	< 1.0% by dry weight > 3 mm< 0.5% plastic by dry weight no foreign matter > 25 mm per 500 mL no sharp foreign matter that could cause harm to humans or animals.
Arsenic 	≤ 13 mg/kg dry weight
Cadmium 	≤ 3 mg/kg dry weight
Chromium 	≤ 210 mg/kg dry weight
Cobalt 	≤ 34 mg/kg dry weight
Copper 	≤ 100 mg/kg dry weight
Lead 	≤ 150 mg/kg dry weight
Mercury 	≤ 0.8 mg/kg dry weight
Molybdenum 	≤ 5 mg/kg dry weight
Nickel 	≤ 62 mg/kg dry weight
Selenium 	≤ 2 mg/kg dry weight
Sodium, Percent Saturation	< 2%
Zinc 	≤ 500 mg/kg dry weight
Category:materials
Category: testing
Constrained spaces

There are so many opportunities to get creative in fitting LID practices into tight spaces, or to integrate them onto/into buildings!
Space efficient BMPs include:
*Green roofs, 
*Stormwater planters, 
*Permeable pavements,
*Absorbent landscapes,
*Swales, 
*Rainwater harvesting, 
*Blue roofs, 
*Micro constructed wetlandsAECOM, Water. People. Places. A guide for master planning sustainable drainage into developments (2013) https://www.westsussex.gov.uk/media/2270/suds_design_guidance.pdf,
*Dry ponds, and 
*Soil cells.
In many cases it may be possible to include infiltrating practices within 'normal' setbacks tooWilson, S. (2012). “Using SuDS close to buildings.” <https://www.susdrain.org/files/resources/fact_sheets/09_12_fact_sheet_suds_close_to_buildings.pdf> (Mar. 8, 2018).. This will depend upon the native soil type, the depth of the water table, and the underdrain configuration being designed to prevent mounding of the groundwater. See also groundwater mounding.
==Building integrated vegetation==
Shallowly planted green walls as seen in Asian, European or West Coast climates have some trouble surviving in Ontario. However, planter boxes can be incorporated into the facades and the relatively small catchments of roof decks and balconies can be routed to irrigate them. These can house deciduous trees, shrubs or climbing plants to provide shading to the building envelope as well as capturing stormwater.
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Curb cuts

==Overview==
Curb cuts are a form of LID/BMP inlet. They include a variety of modified curbs and spillways.
They are well suited to retrofit scenarios and to collect runoff from catchments with relatively gentle longitudinal slope, and/or a greater cross slope. This might be the local topography of a parking lot or a piece of parkland.
As this inlet width is directly proportional to longitudinal slope; the required curb cut width increases rapidly on steeper roads. 
Standard width (450 mm), as included in Ontario Provincial Standard Drawings (OPSDs) should be compared to and modified for the flow requirements of the practice.
The Ontario Provincial Standard Drawing (OPSD) collection for curb cuts 
Flow direction 	From asphalt curb and gutter 	From concrete curb and gutter	From either asphalt or concrete outlet
30 to 45 degree	605.020 http://www.roadauthority.com/Standards/?id=b00e3771-6095-4257-b029-1d9879418039	605.010 	605.040 Asphalt Spillways
90 degree 	604.020 	604.010 	605.040 Asphalt Spillways
==Sizing==
To completely capture linear flow travelling along a gutter perpendicular to a curb inlet, the inlet must be of widthU.S. Department of Transportation, Federal Highways Administration. 2013. “URBAN DRAINAGE DESIGN MANUAL.” https://www.fhwa.dot.gov/engineering/hydraulics/pubs/10009/10009.pdf.:
W_T=0.817Q^{0.42}S_{0}^{0.3}\left (\frac{1}{nS_{x}}\right)^{0.6}
The value obtained for total inlet width (WT) can then be divided by the chosen number of inlets to determine the required width of each individual curb cut inlet. Curb cut inlets draining roadways should be a minimum of 0.45 m in width and are typically no wider than 1.5 m. The chosen number of inlets may be adjusted up or down to ensure individual inlet widths are within this range. 
Where the available space for curb cuts is constrained and a greater flow into the BMP is desired, the effective cross slope (Sx) may be increased by adding a depressed concrete apron.
Where the intention is to capture only a portion of flow from the design storm event, the proportion of flow entering the curb inlet under such conditions may be calculated:
R_c=1-\left ( 1-\frac{W}{W_T} \right )^{1.8}
==Example==
Three (3) curb cut inlets of 1 m width each, representing a total curb cut width of 3 m, are proposed for an offline bioretention cell receiving runoff from an adjacent roadway. The gutter and the curb are made from smooth concrete with Manning's 'n' = 0.013. The cross slope ratio is 3% and the longitudinal slope of the road is 2%. The 1 in 25 year design storm produces a peak flow of 0.08 m3/s from the road drainage area. 
The total width of curb cut inlets required to capture 100% of this flow is:
W_T=0.817\times(0.08)^{0.42}\times(0.02)^{0.3}\left (\frac{1}{0.013\times0.03}\right)^{0.6}=9.71\ m
 
The proportion of water entering the bioretention cell under peak flow conditions during the design storm event would be:
R_c=1-\left ( 1-\frac{3}{9.71} \right )^{1.8}= 0.48
So only 48% of the 0.08 m3/s (i.e. 0.038 m3/s) would enter the bioretention cell through the inlets as designed.
==Curb cuts gallery==
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category: Calculations
==References==
Curb cuts: Gallery

County Court Blvd biofilter spillway inlet and CB overflow.jpg|OPSD 605.040 Asphalt Spillway inlet to biofilter swale and road catch basin overflow outlet. County Court Blvd., Brampton, ON.
Curb inlet Miss Rd.jpg|This curb cut has been sawn into existing concrete as part of a retrofit. Note the temporary (erosion log) and permanent stone erosion control measures in place. Mississauga Road, ON. 
LSRCA curb.jpg| Curb cut used as a controlled overflow route from permeable pavements to a bioretention facility with monitoring well, Lake Simcoe Region Conservation Authority, Newmarket, ON.
Curb cut CNT.jpg| Curb cut into a bioretention facility in Hinsdale, IL. Stone in the center of the facility reduces erosion and dissipates power inflow around the inlet area. A monitoring/maintenance well can be seen in the foreground. Photo credit: CNT
Curb cut AV.jpg | Curb cut into a bioretention facility in Brown Deer, WI. Stone is used to reduce erosion around the inlet area. Photo credit: Aaron Volkening
Ajax_curb_inlet.JPG| Curb cut into a bioretention facility in Ajax, ON.
IMAX Stone Inlet.jpeg| Stone lined inlet at IMAX site in Mississauga
Curb inlet grade.jpg| The grading around this inlet prevents flow in the correct direction. i.e. from the pavement onto the grass. Not too critical in this example, as the surface is permeable pavements. 
183A1507.jpg | Curb cut into a rain garden on a green street in Newmarket, ON.
Curb cut - Wychwood.JPG| Curb cut leading into a small bioretention cell in Brampton, ON. 
Bioswale - sheet flow - Wychwood.JPG| Curb cut leading to a bioswale in Brampton, ON. 
Category:Gallery
Curb extensions: Gallery

Bump out in Victoria.jpg|Curb extension in Victoria. Image credit Dylan Passmore
Kitchener-8.jpg| 'Offline' streetscape bioretention with trees, King Street, Kitchener
Bioretention CNT.jpg| Bioretention on residential street, with covered drain inlet (grate in the gutter) and iron grate covered overflow in the centre of the cell, Hinsdale, IL Photo credit: CNT
INbumpout.jpg|Curb extension in downtown Indianapolis, IN
Queen Lane2.jpeg|Curb extension on Queen Lane, in Philidelphia Photo credit: PWD
File:Source Jennifer Rosales tree bumpout.jpg|Curb extension with Urban Tree in a tree grate, in city showcased by the U.S Department of Transportation's, Federal Highway Administration. Photo credit: Jennifer Rosales
File:Design by GAI Consultants Kevin Aust. Contractor- UCC Group.jpg|Boulevard with Urban Trees along the boulevard in tree grates, in Orlando, FL. Photo credit: Design by: GAI Consultants/Kevin Aust & Contractor: UCC Group.
File:New York Bumpout.PNG|Schematic of Urban Trees in tree grates in a proposed traffic-calming bump-out as part of the on Columbus Av. New York City, NY. The red arrow depicts the flow of water to the stormwater tree trench system. Photo credit: Jonathan Toner
File:Main-Street-Markham-Markham-ON-03-1200x640.jpg| Curb extension with planted tree in open tree pit, part of a finished soil cell system - a tree grate for safety reasons and increased aesthetic should be added. Located on Main St. Markham, ON. Photo credit: GreenBlue Urban Inc.
Category:Gallery
Demo page

See how the contents list is populated with the headers automatically. I usually constrain them to level 2 headers (see the .docx file)
==level 2 header with 'edit' uses two 'equals' signs==
*bullet item 1
*bullet item 2
The level 3 header is further down (to demonstrate the function of the 'edit')
#numbered list item 1
**level 1A
**level 1B
#numbered list item 2
italics 
bold text used a header for links section
Swales
I'm a link to the wiki page 'swales'
I'm a link to the external page "http://www.sustainabletechnologies.ca/wp/"
The number 1 at the end of this line is also a link to sustainabletechnologies. Only I didn't give it alternative text to show you.
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===level 3 header uses three 'equals' signs===
Click on the 'edit'. See how it breaks the page down into more manageable sections for editing!
 Caption for table
Header 1 	Header 2 	Header 3
Row leader 1	Content under header 2	Content under header 3
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level 3 (no edit section)
And finally I shall reference somethingOnce overheard on the subway
Digital technologies

Naturally this page has a large number of links to prorietary software. Our usual disclaimer applies. 
Please use your own judgement as to which application is going to suit your needs and ask your manufacturer for a trial version to assess it yourself. 
==Internet of things==
tie-in to monitoring activities
==Sensor/Cloud/Responsive==
*Cloud Compli
*OptiRTC
*Raingrid
*Smart stormwater
==Asset databasing and inspections apps==
Please do let us know if you or your municipality has had good or bad experiences with any of these. 
===Android applications===
*Hiperweb Ops
*Infraspeak
*MapDecisions
*Trimble
===Apple applications===
*eSWPPP
Downspout disconnection

Image:Downspout disconnection.png|thumb|600 px|This schematic shows proper downspout disconnection of a building's downspout system with associated setback distances and items (weeping tile pipes, gravel, splash pad, etc. For further details click here. The Institute For Catastrophic Loss Reduction. Protect your home from Basement flooding: Designed for safer living®. https://www.iclr.org/wp-content/uploads/PDFS/protect-your-home-from-basement-flooding.pdf. 2011. Accessed 3 September, 2021 A note: The following is an "image map", feel free to explore the image with your cursor and click on highlighted labels that appear to take you to corresponding pages on the Wiki.
rect 503 90 732 139 Downspout 
rect 819 217 1026 291 Splash Pad 
rect 708 689 948 750 Clearstone 
rect 594 489 926 534 Native Soil
rect 13 302 321 386 Clay
rect 312 388 496 688 OPSS Backfill Material 
poly 374 692 491 694 479 784 439 783 435 718 370 722 374 714 372 709 375 711 374 703 Coarse Gravel
circle 405 753 38 Weeping Tile 
Downspout disconnection programs are common in many older urban centers. They require that residents retroactively disconnect their downspouts from the municipal sewer system. This is due to older sewer systems being undersized for the combined flow of sanitary waste and stormwater. New projects should consider remaining independent of municipal storm sewers from the outset. To prevent flooding and achieve stormwater control, widespread use of small, site scale technologies such as downspout disconnection can reduce the size of shared LID installations.
The Ontario Building CodeProvince of Ontario. (2018). O. Reg. 332/12: BUILDING CODE. Retrieved February 23, 2018, from https://www.ontario.ca/laws/regulation/120332 requires that: 
"Where downspouts are provided and are not connected to a sewer, extensions shall be provided to carry rainwater away from the building in a manner that will prevent soil erosion."
==References==
Dry ponds: Gallery

Wishingwellpark.png|Wishing well park is a baseball field with flood warning signs, Scarborough ON 
Avondale Park.jpg|Avondale Park, designed for flood storage, but not optimized for infiltration, North York ON
Simon Bunn.PNG|A multi-functional dry basin, still due to be fitted with playground equipment. Cambridge, UK. Photo credit: Simon Bunn
Dry pond.jpg|This dry pond features a concrete lined low-flow channel. Photo credit: US EPA
Stormwater lagoon, Wilmhurst Road, Warwick - geograph.org.uk - 1400830.jpg|Stormwater lagoon, Wilmhurst Road, Warwick. UK. Photo credit: Robin Stott
Suchý polder severozápadně od obce, Vincencov, okres Prostějov.jpg|Dry polder northwest of Vincencov, Prostějov. Czech Republic. Photo credit: Jiří Komárek
category:Gallery
Dry ponds: TTT

A dry pond as a storage element (key parameters) in the Treatment Train Tool.
Stage Storage 	Stage Storage
Name 	Important to have a unique name, to connect it with the catchment area
Storage type 	Dry detention ponds
Bottom elevation (m) 	This is important to correspond with other components, e.g. when the overflow is coupled to another BMP within a treatment train
Maximum depth (m) 	
Lined/unlined 	Unlined (ideally)
Underlying soil 	Choose from five; sandy soils drain more quickly.
Evaporation factor 	?
Suction head (mm) 	?
Saturated conductivity (mm/hr) 	?
Initial soil moisture deficit (fraction) 	?
Curves 	Curves
The Curves table is designed to accommodate the side slopes. The top line begins at 0 m, with subsequent depths in the following lines.	The Curves table is designed to accommodate the side slopes. The top line begins at 0 m, with subsequent depths in the following lines.
Engineering hub

Low Impact Development's most powerful concepts are in the drainage planning of the entire site, at any scale. 
*Reject dated ideas of concentrating all of the stormwater together in one corner.
*Argue against levelling every site into a generic, difficult to drain flatness. 
When water is permitted to flow in a greater number of directions, each structural practice or BMP becomes much more efficient and cost effective. 
Ideas for contemporary site planning strategies can be found in:
*Existing hydrology
*Natural drainage
LID BMPs are like a toolbox from which engineers can pick and choose depending on site constraints. But this has to come after a larger scale planning strategy to manage water and other ecosystem spaces. 
==Selection of suite of LIDs: the Treatment Train Tool==
In order to assess if the selected suite of BMPs effectively meet the design criteria, use either computer models or simple spreadsheet models. Base Mmdel selection on the size and type of development. A wide range of simple to complex computer models such as Visual OTTHYMO, SWMM, SWMMHYNO, HSP-F and QUALHYMO are available. See Modeling.
STEP have developed the Low Impact Development Treatment Train Tool to help developers, consultants, municipalities and landowners understand and implement sustainable stormwater management planning and design practices.
Mathematical notation used throughout the site.
Erosion

Erosion along natural steam and riverbanks can increase sediment deposition in stormwater management systemsMcDonough, K., Moore, T., & Hutchinson, S. (2017). Understanding the relationship between stormwater control measures and ecosystem services in an urban watershed. J. Water Resources and Planning Management, 143 (5). The accumulation of sediment overtime exerts a stress on stormwater systems, as their overall volume capacity for water becomes reducedBledsoe, B. (2002). Stream erosion potential and stormwater management strategies. Journal of Water Resources Planning and Management, 128 (6), 451-455..
The Sustainable Technologies Evaluation Program guide to Sediment and Erosion Control can be found here. 
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Erosion control blankets

Facilities that receive surface inflow (e.g. bioretention) are vulnerable to surface erosion and the formation of rivulets. Green roofs can lose exposed planting material from wind scour. These source of erosion should be mitigated by using erosion control blankets:
*Blankets which incorporate a plastic mesh often become unsightly when vegetation emerges in summers following installation. Even before vegetation lifts the mesh, it can snare and kill any passing small wildlife.
*Alternatives including 100% biodegradable blankets or soil tackifiers are recommended for erosion control on and around LID facilities.
category:materials
Exfiltration: Gallery

Perforated_pipe_grass_swale_system_diagram.png|The 'Etobicoke Exfiltration system' (1994), Etobicoke ON
File:2014 during cleaning.JPG|A pair of perforated pipes can be seen in this manhole during cleaning operations. Four connections in total as this manhole is part-way along the system. 
Category:Gallery
Extended tree pits: Gallery

RWH and trees.jpg|Rainwater harvesting cistern, which discharges to tree pits during dry conditions. Image credit Mississippi WMO
Rain Garden (15455930908).jpg|Extended tree pit planting in USAPhoto credit: USEPA
Right of Way Bioswale.jpg|A right of way bioswale installed by the New York City Department of Environmental Protection on Dean Street, Brooklyn
Category:Gallery
Fees and credits

thumb|link=http://165.225.138.102/
There are an increasing number of municipalities increasing transparency to residents and businesses by introducing separated stormwater management fees. In 2016 the Environmental Commissioner of Ontario reported that only around a third of municipalities were recovering the costs of stormwater managementEnvironmental Commissioner of Ontario. (2016). Urban Stormwater Fees: How to Pay for What We Need. Retrieved February 26, 2018, from https://eco.on.ca/reports/2016-urban-stormwater-fees/. Reasons for this many include: ageing infrastructure (in some cases), rapidly increasing density population, and changed precipitation patterns. Whilst a few municipalities have simply applied a separated fee for educational or administrative reasons, many have been able to combine their separated fee with a credit or incentive program. 
Town of Newmarket have established a web portal to view what municipalities across Ontario are doing, and to help others design their own programTown of Newmarket. (2017). Stormwater Charge Policy Tool. Retrieved February 26, 2018, from http://165.225.138.102/. 
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