Regulations and Legislation Features, Insights, & Analysis

  1. Utilizing A Phosphate Analyzer To Monitor And Control Chemical Feed Reduces Operating Costs And Improves Reliability

    The Environmental Protection Agency (EPA) administers the Safe Drinking Water Act (SDWA), which provides for the enhancement of the safety of public drinking water supplies through the establishment and enforcement of nationwide drinking water regulations. Congress gave the primary responsibility for establishing regulations to the U. S. EPA.   Until 1990, the EPA administered a certification process for chemicals, including phosphates, to be used for potable water treatment. By Randy C. Turner, Technical Director, Swan Analytical USA

  2. Clearing Up Misconceptions About Turbidimeter Performance And Calibration

    There is little doubt about the importance of taking turbidity readings as part of drinking water treatment. However, there are certain misperceptions about the associated requirements and procedures needed to confirm the validity of those readings. The major points of confusion seem to revolve around perception of the terms “approved,” “calibration,” and “validation.” Here is a quick synopsis on what you really need to know about meeting U.S. EPA Method 180.1: Determination of Turbidity by Nephelometry for accurate turbidity readings.

  3. Project Profile: Ramah Pine Hill Water System Ramah, New Mexico

    The Ramah Navajo Chapter owns and operates the Ramah Pine Hill water system located in Ramah, New Mexico. The water system is served by one well that provides drinking water for the community’s residents at a maximum of 130 gallons per minute (gpm) with an approximate arsenic concentration of 18 parts per billion (ppb) and iron concentration of 1.70 milligrams per liter (mg/L). By Adedge Technologies Inc.

  4. Full Scale Installation: City Of Brookfield, Wisconsin

    WRT’s award-winning system has been in operation in Brookfield, WI since 2007 to remove radium from two water wells. Brookfield, which is located 15 miles west of Milwaukee, is under a 20-year contract to have the radioactive contaminant removed to a level below EPA requirements, ensuring that the city has safe drinking water.

  5. Groundwater Replenishment System - Orange County, California (Case Study)

    The full-scale advanced treatment system takes filtered secondary effluent from the neighboring OCSD treatment plant and converts it to water that exceeds all drinking water quality standards. The 70 million gallon per day (MGD) system consists of microfiltration (MF), reverse osmosis (RO), and the TrojanUVPhox™ UV-oxidation/disinfection system.

  6. Project Profile: Brandywine Elementary School, New Palestine, Indiana, AD26 Arsenic, Iron, Manganese Removal System

    In July 2009, AdEdge Technologies Inc. (AdEdge) was contacted by Ladd Engineering, Inc. to provide a proposal for the Brandywine Elementary School in the Southern Hancock School District. By Adedge Technologies Inc.

  7. The Hidden Dangers Of Manganese In Drinking Water

    Evidence indicates that manganese (Mn) is more than a nuisance: it's a threat to health. It's time to get serious about removing it from drinking water.

  8. The Role Of pH Measurement During Coagulation

    In the wastewater treatment industry, coagulation has become one of the most widespread processes for effectively separating contaminants and effluent. But coagulation is a complicated and sensitive process, one that alters the chemical balance of the wastewater in order to strip it of unwanted constituents. As in many such processes, pH plays a critical role, and treatment professionals must analyze it closely if they want to properly coagulate their product.

  9. Thermo Scientific Product Assurance Services & Solutions (PASS)

    You are about to settle down for the night when all of the sudden, you find out that more than 1000 units have been taken off the production line because of a suspected product contamination. By Thermo Scientific Product Inspection

  10. Clari-DAF® System Provides Effective TOC Removal For Cambridge WTP

    To ensure treated water complied with the most stringent drinking water standards, including the Environmental Protection Agency (EPA) Stage 2 Disinfectants and Disinfection Byproducts Rule (State 2 DBPR), the City of Cambridge, MA, WTP decided to implement a robust multibarrier treatment solution.