Open Water

_Main image above is by Suzanne McDaniel, and was taken at Island End River in Chelsea, MA, part of the Mystic River watershed. Suzanne's photo was one of the winners of the [MyRWA photo contest]( ## The Open Water Project The Open Water Project aims to - develop and curate open hardware and open software useful for water-related applications - build and facilitate data infrastructures that allow for easier sharing of water data - encourage the growth of communities focused on 'free and open' approaches to water science - support ongoing work by grassroots communities interested in their own local water quality issues To this end, we've been focusing on several initiatives, in particular: **The RIFFLE: An Open Source Datalogger.** We are working to develop an open source hardware datalogger that can be placed in the field for extended deployments and measure common water parameters like: - temperature - conductivity - depth - turbidity The main Public lab wiki for this device is [here]( For recent research and descriptions of projects, you can search for 'riffle' on Public Lab, via [this link]( **The Coqui: using audio as a sensor data format.** We're also exploring using audio frequencies to convey sensor readings -- like a modem, but even simpler -- in order to make sensor readings more accessible for people (or to enable data transmission over ubiquitous audio jacks on PCs and smartphones). Read more about this idea on the [Coqui wiki](, or look for recent updates on Public Lab [here]( **A mailing list.** Sign up for the [plots-water-quality email list](!forum/plots-waterquality), and participate in discussions about low-cost, open source water quality monitoring tools and techniques. [![riffleStraightUp.png](]( [![Riffle-ito.png](]( [![riffleLabel2.png](//](// ##Fracking and Water Quality + Runoff There are also unique water issues related to frac sand. To get some background information and to explore options for addressing water issues as they relate to frac sand mining in your community, [head on over to the frac sand wiki page]( ## Community Projects We'd also like to use this wiki as a place to post links to other projects that embody an 'open science / open source' approach to hydrology and water technologies. Please add your links below! - InfoAmazonia Network:

Author Comment Last activity Moderation
infowavex9 "It is the technology of automatically collecting consumption, diagnostic, and status data from water meters. Wavex coin Wavex is a US-based Coin th..." | Read more » 10 months ago
JasmineKurb "Wow, This is amazing. Science is completely based on experiments. If you are staying science then you should know how to do experiments and you mus..." | Read more » 11 months ago
Ag8n "The data shows that natural titration indicators with long shelf life (90 days) do exist ( see the Hippeastrum note above). However, Red cabbage d..." | Read more » about 1 year ago
Ag8n "The research shows that natural titration indicators, with good shelf life, do exist ( see Hippeastrum, above). However, Red cabbage does not appe..." | Read more » about 1 year ago
Ag8n "The acid (from the pH 3 solution ) for the cabbage indicator could mess up some titrations. A blank might need run(and, depending on the titration..." | Read more » about 1 year ago
Ag8n "Clarification. Acidic media is pH 3. " | Read more » about 1 year ago
Ag8n "Check this reference: "Evaluation of red cabbage dye as a potential natural color for pharmaceutical use" by Neela Chigurupati, et. al. Industrial..." | Read more » about 1 year ago
Ag8n "Some natural indicators can have shelf lives of up to 90 days in solution. See "Hippeastrum hybridum anthrocyanin indicators of acid - base titrat..." | Read more » about 1 year ago
Ag8n "Interesting paper on this same subject. " Application of Butterfly Pea extract as an indicator of acid - base titrations " by Nyi Mekar Saptarini ..." | Read more » about 1 year ago
hunternick363 "This is a nice and simple method of measuring the PH of a solution. I remember these kinds of experiments we used to do in science class. We have t..." | Read more » about 1 year ago
stevejohnson "thanks for the information " | Read more » about 1 year ago
Ag8n "For a couple other reads, look up "The Effect of pH on Color Behaviour of Brassica oleracea Anthocyanin" in Journal of Applied Sciencies, volume 11..." | Read more » about 1 year ago
bhamster "I did this! We tested vinegar, baking soda, lemon juice, pickle juice, and carbonated water. A lot of acids easily available in the kitchen. Then w..." | Read more » about 1 year ago
alejobonifacio "Hi @Ag8n! Thanks for your reply! I had this cabbage solution in fridge almost a week and I didn't see an appreciable color change. I don't know if ..." | Read more » about 1 year ago
Ag8n "First, I'd like to thank Alejo for posting this page. It is very helpful. Then, I' d like to refer you to the comments page in compound chem ( da..." | Read more » over 1 year ago
mauriceatkinson "Hi I would love to build a system just like this but I am concerned that the github libraries are over 4 years old and look like they are not manin..." | Read more » over 1 year ago
EllenHarri "Good Work, Keep it up. " | Read more » over 2 years ago
ronnikahn221 "Thanks for sharing this information. Rasberry pi is the smallest computer in the world in very cheap rate. Easily managable and handy. For more i..." | Read more » almost 3 years ago
moorepatsy10 "Hiya good site!! Individual .. Superb .. Incredible .. I'll bookmark your site and take the feeds also? I am happy to look out a lot of supportive ..." | Read more » almost 3 years ago
dominictoretto1831997 "I wrong or this could be considered as "method"? Its own particularities made the KnowFlow a different one than Coqui, Riffle or Mae d'aigua. I'm b..." | Read more » over 3 years ago
CarolineWebb " Really easy to understand to assembling the Coquí - a Simple Water Conductivity Sensor which is used in academic sector. And will sure share with ..." | Read more » almost 4 years ago
jack_ponting " " | Read more » almost 4 years ago
shritejkhopade8 "a screenshot you could post? thaks for posting " | Read more » about 4 years ago
warren " Hi all! With help from @zengirl2, @asnow and @bronwen, we've posted a new Coqui activity with a smaller breadboard and flatter wiring here: https:..." | Read more » about 4 years ago