AWWA: SDWA Anniversary Cause to Celebrate, 'Renew Our Commitment' to Safe Water

American Water Works Assn.

AWWA CEO David LaFrance thanks water professionals nationwide for keeping water safe for drinking

Dec. 16, 2014, marked the 40th anniversary of the Safe Drinking Water Act (SDWA), which today includes regulations for more than 90 contaminants. American Water Works Assn. (AWWA) CEO David LaFrance issued the following statement to mark the occasion.

Company Reference: 
Publication Date: 
December 18, 2014

Level Switches

Company Reference: 

Thomas Products Ltd. manufactures level switches, including multi-level indicator, side mounted, single level, or bottom mounted models. It can manufacture simple liquid level float switches as well as continuous output level sensors and everything in between.

Harwil Corp.

Harwil is a manufacturer of Flow Switches, Level Switches, Pump Controls and Temperature Sensors. Harwil Flow Switches are used to detect or monitor water flow in both residential and commercial applications. Our Flow Switches can detect flow to turn on a water treatment device such as a chemical feed pump, UV or ozone. We even have systems that can detect flow to a single faucet in an apartment building. We also manufacture pump protection systems that shut down a pump if there is a flow problem to prevent it from running dry. We offer a wide range of flow switches from Heavy Duty Stainless steel that are used by the US Navy, to medium duty that are water proof and can be direct buried to low cost light duty for use by Original Equipment Manufacturers in their systems. Harwil level switches are the industry standard in many applications. All Harwil switches are “Made in the USA”.


541 Kinetic Drive
Oxnard, CA 93030
United States
Toll-free: 800-562-2447
Phone: 805-988-6800
Fax: 805-988-6804

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Level Switch

The L-40 level switch is ideal for level control in RO tanks. It is compact and rugged, and can be mounted vertically or horizontally. A combination these level switches can be used to function as a high-level or low-level switch. In addition, they are often installed as emergency overflow switches (shown in the photo in red). When used with a latching controller, the L-40 can be used in a pump up/down system.

Thomas Products Ltd.

Thomas Products designs and manufactures hundreds of standard flow and level switches, as well as water flow gauges, liquid level gauges, flow gauges,water level controls, liquid level controls and flow controls. We can also custom design and manufacture variations of almost all of our parts for specific applications such as high temperature & unique mounting solutions. We have the ability to use any number of connectors, specific wire or cable, as well as threading connections. Thomas Products manufactures level and flow switches for the Water Filtration, Process Control, Petroleum, Chemical, Semiconductor, Marine, Harsh Environment, Commercial Building, Refrigeration, Air Conditioning, and Critical Condition Industries and many more.


987 West Street
Southington, CT 06489-1023
Phone: 860-621-9101
Fax: 860-621-1470

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Ronk Electrical Industries Inc

Manufacturer of electrical phase converters used to operate three-phase electrical equipment from single-phase power sources. The ADD-A-PHASE is most often used to power fan and pump motors. Available Duo ADD-A-PHASE units for dual motor lift station applications. Separate capacitor and control sections maintain redundancy. Other products such as rotary phase converters, power factor correction capacitors, and manual double-throw switches for backup power sources are available as well.


106 E State St
Nokomis, IL 62075-0160
Phone: 217-563-8333
Fax: 217-563-8336

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