My first ArcGIS Instant App

I’m studying GIS through Penn State, and having SO MUCH FUN digging around in data and making maps. So, I want to share the first map app I made (intended for educational purposes only!): it’s a “Wastewater recreation map” to help those of us who want to safely recreate on these dirty ‘ol rivers. 

Side note: I used ArcGIS Online’s “Instant App” feature to make this, and I was amazed by how intuitive and fun it was. I’ve worked in many contexts where we’ve been building (or dreaming of) “click to deploy” systems like this; it was really cool to use a tool that was achieving that so elegantly.

Many rustbelt cities, including Pittsburgh, have combined sewer systems: the wastewater infrastructure is combined with the stormwater infrastructure, so during heavy rains the sewer system can overflow into the public waterways. Knowing the location of sites where this outflow is discharged, along with sites where other types of facilities are discharging effluent into the rivers, can help boaters make informed decisions about where to launch their boat, and where they might want to avoid.

Image: Combined sewer outfall (CSO) at an ALCOSAN site near Chartiers Creek in Crafton, PA (Source: Lee Eicholtz, USGS) 

This map displays the locations of public access boat ramps and launches in Pennsylvania, alongside ALCOSAN sewer outflows and other PA “water resource discharge” locations — these can be sewage treatment plants, instream discharge, spray irrigation field, groundwater recharge, on-lot septic, or an unidentified facility type.

The layers used in this map source information about river access locations (boat ramps and launches) from the Pennsylvania Fish and Boat Commission, PA Department of Environmental Protection (DEP), and “water trail” partner organizations. The information about sewage and other discharge locations is from ALCOSAN, the PA Department of Health, and PA DEP.

Layers:

ALCOSAN. Sewer outfalls. https://services8.arcgis.com/vXrmg6iOl1pzNz4z/arcgis/rest/services/ALCOSAN_Outfalls_LOCKED/FeatureServer 

College Township, original data from PA Fish & Boat Commission and water trail partners. Fishing and Boating Access. https://services8.arcgis.com/qnunbWxvlJsj1oVm/arcgis/rest/services/Fishing_and_Boating_Access/FeatureServer 

Commission for Environmental Cooperation (CEC). On-Site Surface Water Discharges. https://services7.arcgis.com/oF9CDB4lUYF7Um9q/arcgis/rest/services/PRTR_2023_Water_Discharges_AGO/FeatureServer 

Crawford County GIS, data from PASDA service. PA Fish & Boat launch locations. https://maps.pasda.psu.edu/arcgis/rest/services/pasda/PAFishBoat/MapServer/0 

EJScreen / PA Department of Health (DOH), original data from US EPA. Wastewater discharge. https://pennstate.maps.arcgis.com/home/item.html?id=beb2109d2e6b4cb89d488a02da95b89a&sublayer=0#overview

PA Department of Environmental Protection. Water Resources – Discharge Locations. https://gis.dep.pa.gov/depgisprd/rest/services/emappa/eMapPA_External/MapServer/297 

PA Department of Environmental Protection. Water Obstructions and Encroachments – Boat Launch Ramp Locations. https://gis.dep.pa.gov/depgisprd/rest/services/emappa/eMapPA_External/MapServer/211 

Other references:

Allegheny County. “Water Pollution Control”. https://www.alleghenycounty.us/Services/Health-Department/Waste-and-Water-Related-Programs/Water-Pollution-Control Accessed August 31, 2026.

Pennsylvania Department of Environmental Protection. “Wastewater Reports”. https://www.pa.gov/agencies/dep/programs-and-services/water/clean-water/wastewater-reports Accessed August 31, 2026. 

Pennsylvania Water Science Center. “CSO outfall, ALCOSAN, Pittsburgh, Pennsylvania”. (2025: April 26). USGShttps://www.usgs.gov/media/images/cso-outfall-alcosan-pittsburgh-pennsylvania Accessed August 30,2026.

Pittsburgh Water. “Combined Sewer System”. https://www.pgh2o.com/your-water/sewer/combined-sewer-system Accessed August 30, 2026.

United State Environmental Protection Agency. “Effluent Guidelines”. https://www.epa.gov/eg Accessed August 31, 2026.

History podcasts, and then some

Today I went in search of some podcasts to listen to while working on organizing my recipes. First I tried some British biographies from the Oxford Dictionary of National Biography. I listened to the mp3s for Vita Sackville-West and the legendary Sweeney Todd. While the facts in these biographies are interesting, it seems that the narrators are just reading them from a biographical dictionary; the sentences just sound like they were written for the page, though the readers are both skilled at making the texts pleasant to listen to. I thought these podcasts lacked the sort of wandering intrigue that makes many others catch my attention. Perhaps it’s just the more popular interview format that makes other podcasts more interesting for me. I also think I have a preference for historical trivia to be revealed in an order determined by something other than chronology. Nevertheless, as an auditory form of access to a reference work, the Oxford DNB podcasts are easy to peruse, and they offer insights into the lives of some people I would never learn about otherwise.

Next I discovered the archives of Talking History, a program by the Organization of American Historians. The show is now defunct, but you can still download old episodes. I listened to one about the so-called “Children’s Blizzard of 1888“. This podcast takes the form of an interview, followed by a description of digital collections you can access online that offer photographs and a chronology of blizzards in the US. Then, a rather verbose scholar opines on the fate of cities vs. the destructive tendencies of Mother Nature. I liked the format of this podcast a lot better. The potpourri was entertaining, and hearing an author interviewed about a book always leaves you the option of going out and reading the book if you want to discover more. Some other interesting topics covered in this podcast series include the social and political history of marriage, a history of women’s basketball, and what’s behind Daylight Savings Time. And those are all just from 2006!

I don’t have iTunes on any of my computers that has the internet, so I sort of delayed getting into the whole podcast thing. It took me awhile to realize no iPod was required; that “podcast” didn’t mean anything more than “mp3 file” in many cases. I know the History Channel, the Library of Congress, the BBC, NPR, and many other major news outlets offer lots of podcasts, but I thought it might be nice to mention some from perhaps lesser-traveled areas of the web. Enjoy…

The Memory Palace – short podcasts on some of the more unusual or under-reported aspects of history, presented (i think) rather poetically.
BackStory with the American History Guys – lots of great topics, very chatty format. In keeping with the blizzard theme, I listened to their episode on the history of climate control. What can I say? I am over summer.
Environmental History podcast – about human societies and the environment in the past.
12 Byzantine Rulers and Norman Centuries – two podcast series by author and speaker Lars Brownworth, who has been featured in the New York Times (just sayin).
Journal of American History podcast – interviews with scholars about their work. Only on its 7th episode, but seems promising.

…and for more on other topics, try:
Science Podcasters – a list of high-quality podcasts on various science topics, e.g. “Brain Science Podcast”, “The Nursing Show”, and “This Week in Parasitism” (not kidding).
Astronomy Cast
Library of Congress Guide to Poetry and Literature Webcasts