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Many green infrastructure practices manage stormwater by allowing it to soak into the ground as it would in a natural setting. This approach has the potential to restore groundwater recharge rates, but also has the potential to introduce pollutants into the subsurface.
The reports and articles linked here on the EPA website examine both the ability of green infrastructure to increase groundwater recharge, and the ability of green infrastructure to treat infiltrated water.
Source: EPA.gov
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Join Perma-Liner Industries March 31 – April 2 in Clearwater, Florida for their Trenchless Open House. This three-day event is jam-packed with demonstrations in live municipal utilities.
Experience one-on-one time with field technicians, sales and marketing team members.
TUESDAY, MARCH 31ST
Demonstration: 9:00am: Perma-Lateral™ Tear-Away with Steam Cure
11:00am: Lunch
12:00pm: Perma-Lateral™ Tear-Away with Steam Cure
1:00pm: Perma-Liner™ Sectional Point Repair
2:00pm: Picote Solutions Demonstration
3:00pm: Dancutter Robotics Demonstration
4:00pm: Schwalm Robotics Demonstration
WEDNESDAY, APRIL 1ST
Demonstration: 9:00am: Perma-Liner™ Sectional Point Repair
11:00am: Lunch
12:00pm: CIP Manhole Rehabilitation
2:00pm: Post Inspection of Perma-Lateral™ Tear-Away
3:00pm: Post Inspection of Perma-Liner™ Sectional Point Repair
4:00pm: Post Inspection of CIP Manhole Rehabilitation
THURSDAY, APRIL 2ND
Demonstration: 9:00am: Perma-Main™ Continuous Lining
Call 1-866-336-2568 for more details.
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Water pollution degrades surface waters making them unsafe for drinking, fishing, swimming, 
and other activities. As authorized by the Clean Water Act, the National Pollutant Discharge Elimination System (NPDES) permit program controls water pollution by regulating point sources that discharge pollutants into waters of the United States.
Point sources are discrete conveyances such as pipes or man-made ditches. Individual homes that are connected to a municipal system, use a septic system, or do not have a surface discharge do not need an NPDES permit; however, industrial, municipal, and other facilities must obtain permits if their discharges go directly to surface waters. In most cases, the NPDES permit program is administered by authorized states.
Since its introduction in 1972, the NPDES permit program is responsible for significant improvements to our Nation’s water quality.
Learn more about NPDES on the US EPA website.
Source: EPA.gov
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Akkerman Tunnel Boring Systems have been installing pipe around the world for over 40 years. Akkerman is pleased to introduce the 5200 Pump Unit, the most essential element of the Tunnel Boring System. This flagship product has been improved in several essential areas while retaining the best qualities of its predecessors, to achieve optimal pipe jacking performance.
The 5200 Pump Unit maximizes the Tunnel Boring System’s capabilities with enhanced functionality to offer the utmost power and precision in many geological circumstances. The unit presents application flexibility with three independent hydraulic sources – two low-pressure sources for the Tunnel Boring Machine (TBM) boring head supply and one high-pressure source for jacking and Intermediate Jacking Stations (IJSs).
Low-pressure hydraulic boring head supply is provided by two, 100 HP (74 kW), totally enclosed fan-cooled (TEFC) electric motors. Each motor features variable displacement piston pumps managed with electronic displacement control, allowing the user to select between 30, 60, 90, or 120 gpm at the flip of a switch. The boring head system supplies 30-120 gpm of oil at 3,000 psi to all Akkerman TBMs or 30-60 gpm at 5,000 psi to Series II TBMs. The advanced 5,000 psi boring head supply is advantageous in demanding ground conditions which require increased cutter torque and greater horsepower in single feed applications.
All jacking and IJSs functions are accomplished by a 12.5 gpm, 8,000 psi capable pump, driven by a 60 HP TEFC electric motor. At 8,000 psi, the jacking system offers 400 tons of jacking force and 30% more pressure for the IJSs. Operators will appreciate the handling of jacking functions with variable pump output and electronic valve actuation.
A 240 gal (908 L) hydraulic tank supplies oil to the pumps and in-tank filtration keeps it free of contaminates. Oil also continuously flows through a dedicated cooling and filtration circuit.
The importance of operator’s safety is evident in the 5200 Pump Unit design. An emergency e-stop is located on the operator’s platform and an optional remote cabled e-stop is available for in-shaft personnel. The control panel on the operator’s station has an enhanced interface and simplified appearance.
The 5200 Pump Unit touts many additional quality features. The unit can be hoisted from a single lift point. The location of the laser slot ensures an unobstructed laser path. Removable, vandal resistant, lockable doors protect the unit during when not in use. Electric is facilitated through a 400-amp, 480-volt, 3-phase connection. The 5200 Pump Unit is 90-in. (2,286 mm) tall, making it ideal for clearance when used with most pit shorting configurations.
The 5200 Pump Unit is interchangeable with all Akkerman Tunnel Boring System components. Contact a sales engineer for more information about this and all Akkerman equipment offerings at +1 (800) 533.0386 and visit akkerman.com.
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Vac-Tron Equipment, the industry innovation leader in industrial vacuums, potholing, daylighting, hydro excavation, air excavation and environmental clean-up equipment, would like to introduce the new LP 533/833 SGT, our new gas unit.
SGT: Powered by a 37 HP Kohler Gas Engine, this is a unit with similar performance specs as the pre tier 4 final SDT model with 1000 CFM Vacuum Pump. The SGT delivers great performance with a much lower cost of the Tier 4 final Diesel option.
This machine features the new SERIES 33 SAFETY REAR DOOR. The hydraulic screw rear door offers a high torque motor with a self-adjusting threaded shaft designed for low maintenance and easy operation. It opens to a full 90” angle and is equipped with a safety lock that engages automatically.
It features CVS FILTRATION HOUSING. The LP ground level filtration housing also incorporates a 28″ (71.1 cm) diameter cyclone, four-way valve for reverse pressure, and the largest silencer in the industry for quiet performance. Patent pending.
It has an OPTIONAL STRONG ARM. The Optional strong arm is to help support the weight of the vacuum hose.
It has 6″ (15.2 CM) DEBRIS DISCHARGE VALVE. For quickly off-loading liquid materials by gravity or under pressure to another container.
EASY ACCESSIBILITY. Easy access engine compartment for service and regular maintenance of all components.
For more information contact Vac-Tron Equipment LLC at 1-888-Vactron or visit us online at www.vactron.com.
Vac-Tron Equipment, LLC. reserves the right to make changes in engineering, design and specifications; add improvements; or discontinue manufacturing at any time without notice or obligation. Equipment shown is for illustrative purposes only and may display optional accessories or components.
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EPA is committed to promoting sustainable practices that will help ensure that citizens continue to enjoy the benefits of clean and safe water. Guided by the 
Agency’s Clean Water and Drinking Water Infrastructure Sustainability Policy, EPA is working with a broad group of stakeholders to help bring about more sustainable practices on three levels.
· Sustainable Water Infrastructure—Sustaining the collection and distribution systems, treatment plants and other infrastructure that collects, treats and delivers water-related services.
· Sustainable Water Sector Systems—Sustaining all aspects of the utilities and systems that provide water-related services.
· Sustainability Communities—Promoting the role of water services in furthering the broader goals of the community.
Each of these levels supports the others. The effective management of water infrastructure is one of the main challenges faced by our water sector systems. Our water sector systems must also address a range of other challenges to ensure their operations and infrastructure are sustainable. Sustainable infrastructure and systems are essential to ensuring the environmental and economic sustainability of communities throughout the nation. Learn more here.
Source: EPA.gov
