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Stormwater Monitoring
question:stormwater

Stormwater is excess runoff from rain and snowmelt events that flows over land or impervious surfaces, such as paved streets, parking lots, and building rooftops, and does not soak into the ground. [paraphrased from EPA](https://www.epa.gov/npdes/npdes-stormwater-program) Some of the concerns around stormwater are that "the runoff picks up pollutants like trash, chemicals, oils, and dirt/sediment that can harm our rivers, streams, lakes, and coastal waters" -- and human health. _Lead image from Dr. Gloria Horning's [work](/notes/joyofsoy/11-09-2018/fighting-the-flood-community-activism-and-education-in-pensacola)_ ### How is stormwater regulated? Stormwater is one of the pollutants that is regulated under the [National Pollution Discharge Elimination System](https://www.epa.gov/npdes) (NPDES). "The NPDES stormwater program regulates some stormwater discharges from three potential sources: municipal separate storm sewer systems (MS4s), construction activities, and industrial activities." ### How is stormwater monitored? Monitoring for stormwater can be challenging. Monitoring activities could explore facets of stormwater such as: - The depth and duration of standing water in an area, - How much rainwater can be harvested from an area, - How much water can be absorbed by an area, - How different ground covers react to stormwater events, and - How well infrastructure is working to handle stormwater runoff. This page was created to compile some activities, questions, updates and projects surrounding issues of stormwater. Click the links below to add to this growing resource! ## Stormwater Activities [activities:stormwater] ### Frequently Asked Questions [questions:stormwater] **** ## Updates [notes:stormwater!question:stormwater] **** ## Project Pages - 2018 [Pensacola Stormwater Project](https://publiclab.org/wiki/pensacola-stormwater-project) - 2017 [New Orleans Stormwater Workshop Series](https://publiclab.org/notes/stevie/02-01-2017/stormwater-workshop-series-in-new-orleans) - 2016 [New Orleans Flood Sensing Project ](https://publiclab.org/wiki/depth-flood-sensing-in-new-orleans)** _Lead image from [Commons Wikimedia](https://commons.wikimedia.org/wiki/File:Stormwater_culvert_along_Dobney_Ave.jpg)_ ...


Author Comment Last activity Moderation
liz "Yes, civil engineers have empirically tested many different ground covers for how much stormwater they absorb, and from this created "runoff coeffi..." | Read more » almost 4 years ago
eustatic "of course, FEMA has the HAZUS-MH https://www.fema.gov/media-library/assets/documents/5507 USGS has their estimation, based on photography (of cour..." | Read more » almost 4 years ago
eustatic "For Surge data, you can SURGEDAT for the Whole Gulf of Mexico. http://surge.srcc.lsu.edu/ Ezra Boyd would have known the answer to this in detail,..." | Read more » almost 4 years ago
warren "@sagarpreet, this might be interesting to add to https://github.com/publiclab/leaflet-environmental-layers if folks have some good data sources! " | Read more » almost 4 years ago
Ag8n "We always contacted the state EPA. " | Read more » almost 4 years ago
Ag8n "You might be surprised at what goes into storm sewers. The plant I worked at had a "branch" of about 40 people. Anyway, because of its small size..." | Read more » almost 4 years ago
stevie "Answers we came up with at our workshop include: don't dump any stormwater pollutants, (see stormwater pollutants question) making sure storm dra..." | Read more » almost 4 years ago
stevie "Answers we came up with in our workshop are: yard waste, fertilizers, pesticides soaps and cleaners, pet waste, We could use more resources on..." | Read more » almost 4 years ago
stevie "Answers we came up with at our workshop include: to help keep your neighborhoods from flooding to keeps our waterways cleaner to protecting our p..." | Read more » almost 4 years ago
stevie "I found a number of the ones that use soda bottles don't really account for measuring on cylinders that aren't strait. I wrote up an activity that ..." | Read more » almost 4 years ago
stevie "Here's another interesting idea I just found https://giphy.com/gifs/instrument-AsFbniBeEbecU " | Read more » almost 4 years ago
RadioFreeTerry "Hi Stevie...I'm no expert in this area but in my surfing I happened across a few links on this topic recently. Hopefully these will be of some use ..." | Read more » almost 4 years ago
Ag8n "Wondered about that. The main plant Had a storm sewer. One of the small satellite plants had something labelled a storm sewer. But, when the sam..." | Read more » about 4 years ago
stevie "Here's a great publication I just found by Hilairie Schackai from Water Wise in New Orleans that's a guide on Harvesting Rainwater. It includes inf..." | Read more » over 4 years ago
warren "Miriam from the Gulf Coast discussion list (not sure of her username here?) shared: I participated as part of the Disaster Response Team last summ..." | Read more » over 4 years ago
pdhixenbaugh "As an add-on, most stormwater flows into storm drains and directly into streams without treatment. In combined sewer systems, CSOs happen periodica..." | Read more » about 5 years ago
pdhixenbaugh "Some other things -- certain types of industries can ask for an exemption from this permit if they claim they have zero stormwater pollution exposu..." | Read more » about 5 years ago
pdhixenbaugh "The general permits also come in different variants, and the Municipal Separate Storm Sewer Systems (MS4) permit is a big one. For example, my muni..." | Read more » about 5 years ago
liz "Many older cities treat stormwater before it is discharged. Quoting Kate Asher in Anatomy of a City (2005), "New York is one of only 800 or so citi..." | Read more » over 5 years ago
warren "Just to clarify, #NPDES is the National Pollutant Discharge Elimination System " | Read more » over 5 years ago
stevie "Yes! You can read about NPDES permit exemptions on this page "There are highly consequential exemptions listed in Section 402(l) of the Clean Wate..." | Read more » over 5 years ago
stevie "You can read about this on the NPDES wiki here. "There are two kinds of permits issued under NPDES: individual and general. Individual permits are..." | Read more » over 5 years ago
stevie "One way stormwater is regulated is through the National Pollutant Discharge Elimination System (NPDES). See NPDES wiki "NPDES only applies to “poi..." | Read more » over 5 years ago
warren "Hi, Stevie -- is it possible that anything from Model My Watershed could help answer the question? I think they may run these equations in a map fo..." | Read more » over 5 years ago