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Newsletter #73 for April 19, 2012

Calibration & Care of pH Meters

The most recent newsletter from Water Online had a link for cleaning, inspecting, and calibrating pH meters. We aren't advocating for Water Online, or any trade group out there, but we subscribe to dozens of newsletters from a variety of groups like Water Online so that we can give you the best and most up to date info out there. When I tried to look at the information they provided, it required me to register to see the article.

I didn't want to post something here that would require anyone to register, but I really liked the idea of providing you with something practical about pH meters that are part of many of your daily routines. Because our goal is to always provide info that is free and publically available, I did a little searching on the web to see what was out there.

I found that there is a lot of free, publicly available information on calibrating pH meters, as well as on care, storage, and many other topics. One of the best for basic information was all-about-ph.com.

Other Resources
* Good overview of care and calibration from MBH Engineering systems
* Calibration video from NCBioNetwork.org for a Fisher Scientific meter
* Video from Kirkwood Community College

Many of the sites that I found suggested a two point calibration and others, like the videos above, say to use a three point calibration. I'm no expert, so if you aren't sure, ask a technical assistance provider you trust, but if your samples are usually below pH=7, then you should use buffers of pH 7 and 4. If above 7, then use 7 and 10 for the best accuracy.


Stormwater and Source Water Protection

no dumping sign on storm sewer

The state of Maryland recently enacted legislation requiring localities in 9 counties to fund projects to reduce pollution from runoff from roads, buildings and parking lots. It will establish a tax for landowners based on the paved/structured area they have. It's also an opportunity to do outreach in those communities about the importance of protecting storm drains.

These metal placards were recently placed on all of the storm drains in Champaign, Illinois. Not only do they raise awareness of the issues, but hopefully make people think twice before dumping something harmful.


Video of the Week

In each week's newsletter, we're highlight an excellent video worth watching. That video is also be featured on our home page during the week. Visit our archive for past features.

This week's featured video is a fun and memorable public service announcement about wasting water.


Stop Running Toilets


Weekly Reading for April 17, 2012

Each week we'll provide a collection of our favorite links we know you'll love too!

Spicewood Beach Must Keep Getting Water Trucked In - Texas Community is still hauling water.
Dried Out: Confronting The Texas Drought - a lot of good info about Texas. Slide the bar on the US map from right to left to watch the changing drought conditions in the US over the past two years. Texas has really been the target.
Warm weather and spring algae temporarily affect the taste and smell of tap water - Algae blooms can affect smell and taste, but water is still safe to drink.
The Big Name Change - In WEF Highlights for April, feature describes efforts to rebrand wastewater operations to better reflect the role of wastewater systems, and to promote the role and importance of wastewater management to consumers.

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SmallWaterSupply.org Calendar

Upcoming Free Webinars

April 24 - WEF: Basic Wastewater Series Part 3: Solids Processing
This webcast is the third of four webcasts being offered in a 4-part series related to the fundamentals of wastewater operations. This series will cover subjects related to every stage of the wastewater treatment process, from primary and preliminary treatment to nutrient removal. Conditioning and thickening are also discussed.

Want to find additional training opportunities for operators, including events in your area? Search the SmallWaterSupply.org Calendar for more online and in-person events.


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