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Equipment to Meet Growing Policy, Regulation, and Contract Requirements

New concepts implemented in work truck portable wash & water reclaim equipment

S-K ENVIRONMENTAL

Invasive species wash system

2 Equipment to meet growing policy, regulation & contract requirements

Table of Contents ISSUE ............................................................................................................................................................. 3

DIRECTION OF POLICY, REGULATION AND CONTRACT REQUIREMENTS ...................................................... 3

Trends in Management Strategy .................................................................................................................. 4

Facts of Weed Seed Movement..................................................................................................................... 4

MEETING THE CHALLENGE OF EQUIPMENT CLEANING ................................................................................ 5

Mobility ................................................................................................................................................... 5

Quality Control ........................................................................................................................................ 6

Efficiency ................................................................................................................................................. 6

Environmental Sensitivity .......................................................................................................................... 6

Facts of Vehicle Cleaning .............................................................................................................................. 6

TECHNOLOGY IMPROVEMENTS .................................................................................................................... 7

Improving Processing Time & Debris Removal ............................................................................................. 7

Meeting Environmental Rules & Regulations ............................................................................................... 8

Wash Pad ............................................................................................................................................... 8

Sludge Reclaim System ............................................................................................................................ 8

Further Decreasing Risk of Weed Seed Movement ...................................................................................... 8

Improving Consistency and Efficacy of a Portable Wash System ......................................................... 9

Sure-Koat™ System Test ..................................................................................................................... 9

Picture 1. Electrostatic spray system applying Sure-Koat™ treatment to the undercarriage of the

test truck ............................................................................................................................................. 10

Diagram 1. Weed Seed placement in open Petri dishes on truck frame. .......................................... 10

Graph 1. Germination results of 400 seeds per treatment from field test. ....................................... 10

CONCULSION ............................................................................................................................................... 10

WORKS CITED .............................................................................................................................................. 11


New Concepts Implemented in Work Truck Portable Wash & Water Reclaim

Equipment

Equipment to meet growing policy, regulation, and contract requirements.

March, 2015

ISSUE

Invasive species such as undesirable plants on

roadsides, have long been recognized as hazards

to human health, due to consequences as

severe as blocking line of sight or being a fire

hazard, to as inconvenient as being a source of

hay fever or degrading the aesthetic of the

landscape. Federal agencies, State and Counties

have long addressed weed problems through

re-active vegetation management programs to

control the culprits that elicit the greatest

economic or ecological impacts. However;

there has been an increasing trend to address

weed management through preventative

programs. Prevention is the most efficient

invasive pest management strategy (TNC,

2007). Prevention programs have also proven

to be more cost effective then control

programs (USDI). Therefore; federal, state, and

county weed management plans are putting

greater emphasis on prevention strategies. A

prevention measure that is gaining popularity is

the cleaning of vehicles to remove weeds seeds

and vegetative reproductive parts to reduce the

movement of weeds. Studies to evaluate the

effectiveness of mobile vehicle wash systems

have revealed they are effective, but there is

room for improvement. Contractors and

maintenance crews are faced with choosing a

wash system that is not only effective, but also

efficient for their operation. Additionally,

environmental rules that spring from laws, such

as the National Environmental Protection Act

(NEPA) and the Clean Water Act further

dictate what is needed in a wash system to

meet site requirements. Policy, regulations and

contract requirements are being refined to

prevent weed seed movement at the same time

that research results on wash systems are being

translated into equipment improvements.

Public and private organizations can benefit

from knowing the current trends in prevention

management and what are the best product

solutions available to meet the requirements.

DIRECTION OF POLICY, REGULATION AND CONTRACT REQUIREMENTS

For several years now, there have been

numerous agencies as well as interagency

groups involved with influencing and creating

policy of invasive plant management, at a local,

regional or national level – including

State/Regional Invasive Species Councils (e.g.,

the Southeast Exotic Pest Plant Council),

Invasive Plant Task Forces (e.g., the Beach Vitex

Task Force), and Cooperative Weed

Management Areas (e.g., the South Fork WMA


in Wyoming) (Westbrooks, 2011). Such

agencies and groups routinely employ a number

of strategies to manage widespread invasive

plants through prevention, control, and public

outreach. Groups such as these and their

members routinely reach out to state and

federal legislators to influence invasive species

policies, including the inclusion of management

strategies in state environmental policy and

federal agency policy. Additionally, a more

inclusive group, the North American Invasive

Species Management Association (NAISMA)

works hard to hold industry standards that will

improve invasive species management across

North America. These standards are developed

to ensure that weed management programs

across states, regions and country boarders are

working toward similar goals and are able to

share information across programs. In February

of 1999 an Executive Order 13112 was signed

that formed the National Invasive Species

Council (Federal Register, 1999). The Council

performs activities and creates a National

Management Plan to ensure that federal

prevention and control activities for invasive

species are coordinated, effective and efficient.

Trends in Management Strategy

The impact of all these groups have made land

managers more aware of the choices they have

in management programs to address invasive

species. Regulatory and non-regulatory actions

such as management plans, codes of conduct

and education and outreach efforts are all

important tools that are being applied within a

comprehensive strategy to prevent the

establishment of invasive species. Of the basic

management choices: Prevention, Early

detection/rapid response, and Control and

management; prevention is the most efficient

invasive pest management strategy (TNC, 2007)

(Taylor, 2011). Prevention programs have also

proven to be more cost effective than control

programs (USDI). When developing an invasive

species prevention program, the pathways in

which an area can be potentially infested is an

important consideration.

A risk-based approach to invasive species

management is mandated by Executive Order

13112 and requires consideration of the

likelihood that an invasive species will establish

and spread as well as the degree of harm it

could cause (Federal Register, 1999). When

evaluating pathways that contribute to weed

invasions, specific species and the total load

involved in pathway/vector risk is considered.

NISC, partnered with the Aquatic Nuisance

Species Task Force, has laid out a pathway

assessment tool to be utilized to aid policy

planning. This assessment only ranks

unintentional, man-made pathways, and ensures

that the priorities of, first humane health,

second economy, and then ecology are

Facts of Weed Seed Movement Movement of weed seeds out of a known

infested area in to an area known to be free

of specific weed species is an activity that

vegetation managers try to avoid. Studies

have found passenger vehicles may carry up

to 135 seeds per vehicles, picking seeds up

from the road or roadside and spreading

them farther down the road (Taylor, 2011).

The potential for movement of seeds from off

road vehicle use is greater than on road, and

Montana State University research found off

road vehicles picked up 14 to 26 times more

weed seeds in wet conditions versus dry

conditions depending on if it was wheeled or

tracked equipment, respectively (Taylor,

2011). The study additionally found that for

the wheeled vehicles, of the weed seeds

picked up under muddy conditions, 100% of

the seeds were lost after driving 80 miles on

paved wet roads, and 50% loss on unpaved

wet roads. Vehicles averaged picking up 21

seeds/mile in spring and 394 seeds/mile in fall.


accommodated (NISC, 2006). Federal agencies

that are currently implementing prevention

strategies by addressing pathway vectors are

the US Forest Service (USFS) and Bureau of

Land Management (BLM). The USDA/USFS has

instituted rules requiring that vehicles entering

and leaving forest fire management areas must

be washed to help minimize weed seed transfer

from one National Forest to another.

Currently, there is a nationwide rule for all

USFS Timber Sale Contracts to have a standard

provision that requires equipment cleaning to

prevent the movement of weed seeds in or out

of a harvest area. The USDI/BLM has also

adopted this strategy for timber sales as well as

some pipeline and well head projects.

Although The Federal Highway Administration

(FHWA) does not have a wide spread standard

policy for removal of weed seeds, they do

address the issue in their Environmental Guide

under the topic of Roadside Vegetation, in the

non-federal related information AASHTO

publication (AASHTO, 2004). In this document

they identify that the first-line of defense and

the most cost-effective strategy against invasive

species is preventing invasion in the first place.

The report discusses that off-road vehicles are

among the largest offenders in transporting

seeds, with transportation systems, spraying and

mowing operations being a portion of what is

responsible for weed spread. FHWA also

recognizes movement of construction

equipment from a weedy site to a non-weedy

site is a common mechanism of transporting

seeds (Callicot, 1999). As states gain more

understanding and evidence of the economical

savings in implementing more prevention

management strategies, these practices could

gain greater emphasis in state environmental

policy for construction and maintenance

practices. States are already including vehicle

wash requirements for removal of weeds seeds

from vehicles in fire suppression operations

(example : Montana Department of Natural

Resources and Conservation, Appendix Fire

Suppression Repair Plan Template). Standard

inclusion of vehicle cleaning for weed seed

removal in roadside maintenance and

construction projects may not be far off.

MEETING THE CHALLENGE OF EQUIPMENT CLEANING

In situations where equipment cleaning is

required new challenges arise. Those challenges

help define the right type of equipment wash

system that is needed. Typical defining

characteristics are:

As the frequency of work sites change, ease

of mobility of a wash station becomes of

greater importance.

As turnover in personnel or number of

personnel increase, the quality control to

assure adequate cleaning of equipment

becomes a greater challenge.

As contract payment becomes more tightly

tied to a completion deadline, efficiency of

a wash system is important.

As work site environmental sensitivity

increases, wash activities and handling of

debris and grey (dirty) water may become

more restrictive, dictated by the:

o National Environmental Policy Act

o Clean Water Act

o Threaten and Endangered Species

Act

Mobility

The majority of portable work truck wash

systems are mounted on a trailer or housed in a

container that can be lifted by crane on to a

flatbed trailer. The ability of a wash system to

function in different sites is more dictated by

the staging site or placement of the wash pad.


Some systems are designed to operate on hard

top where sand or water baffles can be used to

contain or direct grey water. Systems are

available with raised ramps that include water

catchments; however; these units often require

cranes for set-up and dismantle, which limits

mobility. The most flexible systems include a

thick mat with built in baffles that facilitate

collection of used wash water and debris under

numerous situations. The ability for easy set-up

and through site clean-up are important

considerations.

Quality Control

In round table discussions, state officials have

voiced that one of the biggest challenges in

vehicle wash programs is reliable operators of

wash equipment. Typical wash systems rely on

an operator with a high pressure hand wand.

The wash operator may vary, being the vehicle

operator or specially trained personnel. One

portable wash system, the DOTWash by S-K

Environmental, attempts to take the wash

operator out of the quality equation by adding

an automated undercarriage high volume wash

and an automated Sure-Koat™ system that

coats the washed vehicle with an ultra low

volume, static charged treatment the kills any

remaining seeds lodged on the undercarriage or

wheel wells. The system has the option of

utilizing a hand wand operator to address hard

to remove debris or debris on the upper sides

of equipment. The combination of the two

automated systems with the hand operator

gives the highest quality control in the industry

and greatly reduces operator error.

Efficiency

The time required to accommodate vehicle

cleaning can quickly add up and have a large

impact on work progress. It is understood that

in the long view this pro-active approach to

invasive weed control will save time and effort

in the future; however; the immediate impact

on project progress must be considered.

Studies indicate that five minutes of washing

removes up to 88% of weed seeds (Balbach H.,

2008). However; five minutes of wash time can

result in a long line of vehicles trying to enter

or leave a work site. An automated system,

where an undercarriage high volume/pressure

wash is activated by the vehicle rolling over a

pressure strip, and deactivated as it exits the

wash pad, can greatly reduce time and keep

work trucks moving. Adding an automated

Sure-Koat™ system gives piece of mind that

weed seeds are controlled that may still be

lodged after the automated wash, without

slowing truck movement.

Environmental Sensitivity

Typically when there is a concern of weed

movement in or out of a site, there are also

NEPA, CWA and/or T&E concerns. A wash

Facts of Vehicle Cleaning

In a 2005 report, Fleming does a good job at high lighting the different options available in mobile wash

systems in his report ‘Vehicle Cleaning Technology for Controlling the Spread of Noxious Weeds and

Invasive Species’ (Fleming, 2005). In 2008, Fleming, Rew and Balbach evaluated five of the top portable

commercial vehicle wash systems. The research was conducted with the US Army Corps of Engineers due

to the potential hazard in transporting invasive species among Continental U.S. military training sites or

even from area to area on a military installation (Balbach H., 2008). The study used Class 3 fire engines,

light 4x4s and bull dozers. Five wash systems with experienced operators were tested. The wheeled

vehicle wash time was limited to 5 minutes and the track vehicle was limited to one hour. All systems were

fairly successful at removing the majority of debris; however; even the most effective system could only

remove 88% of the debris from the wheeled vehicles. Average removal was around 77% of debris.


system must be able to comply with site

requirements under these rules and regulations.

Self contained wash systems with water reclaim

ability are paramount in this situation. Several

wash systems have recently added the ability to

reclaim and recycle the sludge of used water

and debris (grey water). Important attributes of

a recycling system to look for are the;

system for collection of grey water,

including how the reservoir is created and

reclaim pump capacity.

configuration and size of the settling tank to

address collection and ease of disposal of

large debris.

minimum micron size of debris being

removed in filters.

ease of cleaning, removing, and disposing

debris from settling tanks and filters.

time for grey water to be processed

through the reclaim system.

Recycling properties of wash systems are

becoming more standard in regard to finest

particles removed. Preferred size of the settling

tank and processing time minimums will be

dependent on individual uses. Ease of cleaning

the reclaim and recycling system is often a

personal preference but will be an important

factor in choosing a system. The attribute that

often sets systems apart in regard to meeting

rules and regulations is containment and

collection of the grey water. For equipment

utilizing existing pavement as a wash pad,

reservoirs are often created by placing reclaim

pumps near sewer drains that are blocked by

sand filled baffles. This set-up limits placement

of wash pad areas and may be controversial on

securely meeting regulations. These systems

may not be well configured for collection and

processing a large amount of debris. The ability

to modify a site to accommodate large steel or

other types of ridged wash pads may be limited,

making reclaim mats more appropriate. For

systems that utilize a poly or vinyl mat as a

mobile wash pad, quality becomes an important

factor, as well as, the effectiveness of the baffles

used to contain grey water and return pumps

that can handle large amounts of debris. Mats

with built in baffles have proven extremely

versatile, meeting the requirements of site rules

and regulations as dictated by NEPA, CWA and

T&E requirements.

TECHNOLOGY IMPROVEMENTS

The facts support that cleaning equipment is a

responsible prevention measure to reduce the

spread of invasive weeds. However; the facts

also indicate that there is room for

improvement in portable vehicle wash

technology. S-K Environmental has participated

as an operator, with their first generation

portable wash system, in several of the cleaning

studies for quantifying equipment effectiveness.

The S-K wash system was typically utilized on

US Forest Service contracts at fire incident

camps. Even though they achieved top debris

removal scores, S-K Environmental recognized

there was room for improvement in regard to

meeting environmental law requirements,

vehicle processing time, debris removal, and

improvements toward the goal of decreasing

the amount of viable seeds remaining on the

cleaned equipment, regardless of operator.

Improving Processing Time & Debris Removal

S-K Environmental (S-K) found that processing

time could be reduced by utilizing an

undercarriage spray system in conjunction with

the standard high pressure hand wand for

debris removal. After testing several

undercarriage cleaning systems, S-K

accomplished the best results with a dual

spinner jet spray delivering 300psi at 30

gallons/min. The addition of tire pressure

activation strips, to activate and deactivate the


dual spinners, further decreased processing

time by allowing the vehicle to be in continuous

motion during the cleaning. As the vehicle rolls

over the dual spinners, removal of debris from

the undercarriage is simultaneous with hand

wand spraying removing debris from the vehicle

sides and bumpers. The dual operation not only

saves time but also improves the amount of

debris removed.

Meeting Environmental Rules & Regulations

The two most important features of a portable

wash system to meet environmental rules and

regulations are the wash pad and processing of

the sludge removed from the vehicles.

Wash Pad

There is no standard wash pad for portable

wash systems. Pads vary from:

modular steel wash racks complete with

catch basins,

to use of existing pavement with sand or

rubber baffles directing sludge to low areas

for collection,

to differing mobile mat materials to be used

with separate baffles to contain sludge.

S-K Environmental strived to utilize a superior

system that would allow for set-up on a wide

variety of sites, easy mobility, and excellent

debris containment and collection. They

achieved this with a reclaim mat made of heavy-

duty vinyl. Mats come in numerous sizes to

accommodate any work truck and equipment

sizes. A unique feature of the mats is a built in

baffle, making them exceptionally appropriate

for sites needing to follow environmental rules

and regulations. The baffles are easily filled with

clean water to form a collection reservoir for

the sludge pumps. At completion, the clean

baffle water can be released in the environment

and the mats folded for loading on the wash

trailer that comes equipped with a jib crane for

this purpose. No contaminants, sludge, or

weed seeds are left on site.

Sludge Reclaim System

As the use of portable wash systems in sensitive

environmental areas increase, more wash

system manufacturers are adding water reclaim

systems. Standard systems utilize a settling tank

for large debris, followed by two filters of 100

to 200 microns and 5 to 50 microns. A major

difference between systems is the processing

time of the grey water. Processing time

becomes important when the reclaimed water

is re-used for vehicle cleaning and a high

number of vehicles are being processed daily. S-

K’s experience of processing large numbers of

vehicles at fire incident camps has helped them

to manufacture a reclaim system that

thoroughly removes debris and has an efficient

processing time. Processing time is increased

with the addition of a screen to remove large

debris prior to the settling tank and a final filter

of 10 micron, sufficient for removal of weed

seeds, rather than a 5 micron filter that slows

processing time. Water is sufficiently clean for

reuse or release into the environment in-

keeping with environmental regulations. The

reclaim system as also configured to allow for

easy removal of filters and settled debris for

appropriate disposal.

Further Decreasing Risk of Weed Seed Movement

When interpolating the data collected from

vehicle cleaning studies, it is reasonable to

consider over 400 weed seeds per off road

work truck. Standard washing protocol and

equipment may be expected to remove 80% of

those weed seeds, leaving approximately 80

weed seeds to still be introduced or spread to

new areas. With experience in weed

management and control, S-K Environmental

understood the importance of an effective


prevention strategy; therefore; they wanted to

further reduce that number of viable seeds to

decrease the likelihood of weed spread. The

improvements that S-K has made to the wash

system have improved debris removal to be one

of the highest in the industry. However; there

still may be some viable weed seeds remaining

lodged on the frame of a cleaned vehicle.

Increasing removal would increase vehicle

processing time, so S-K looked to reducing the

viability of the remaining seeds.

Seed viability was most successfully reduced

utilizing the Sure-Koat™ system, a system

designed by and only commercially available

with S-K Environmental wash equipment. The

Sure-Koat™ system is an electrostatic spray

system delivering an ultra low volume (2.5 to 4

oz) of product that decreases seed viability by

95% to 100%, depending on weed species. The

electrostatic spray gives a like charge to small

droplets of the Sure-Koat™ product making it

attractive to the frame of the truck and any

organic matter lodged on the undercarriage

(ESS, 2014). The result of the like charged

particles repelling each other causes the spray

to wrap around areas typically shadowed from a

standard spray application. S-K Environmental

conducted tests with several noxious and

invasive weed species to verify weed seed

control and evaluate process feasibility with the

Sure-Koat™ treatment.

Improving Consistency and Efficacy of a

Portable Wash System

The Sure-Koat™ system is set-up on a

secondary vinyl mat complete with water baffles

and automated pressure sensitive strips. After

leaving the debris removal mat, vehicles roll on

to the Sure-Koat™ mat, automatically activate

the electrostatic sprayer, receive the seed

control treatment and deactivate the sprayer as

they roll off the mat. The total time for the

additional step, to assure the highest possible

weed seed control, is approximately 20 sec.

The use of the S-K Environmental DOTWash

can be seasonally extended by changing the

Sure-Koat™ product to a neutralizer for mag-

chloride.

With the addition of the Sure-Koat™ system,

S-K Environmental has been able to decrease

operator error without losing efficiency of the

total wash system.

Sure-Koat™ System Test

Methods: Lab tests were conducted to determine the best product and rate to reduce seed viability. The

best treatment, considering acceptable control and safest product as related to environmental and

human health, was used in field tests. Field testing consisted of four replications with 400 seeds each for

each weed species. Treatments included a non-treated field check of 50 seeds / open petri dish treated

with water only to simulate a wash for removal of debris only. Treatment 2 was the Sure-Koat™

product applied as the electrostatic spray to 50 seeds / open petri dish. Treatment 2 was accomplished

by securing the open Petri dishes to the undercarriage of a typically sized DOT truck (Picture 1). Prior

to Petri dish placement seeds were sprayed until wet with water to simulate the debris wash that would

take place prior to the Sure-Koat™ treatment. Petri dishes were strategically positioned in or near

areas where seeds may become lodged and would not receive a direct spray from the electrostatic

nozzles (Diagram 1). The truck was run through only the Sure-Koat™ application. On average the cycle

over the electrostatic nozzles was approximately 20 seconds from front to rear bumper with an

approximate delivery rate of 2.5 oz/20 sec. Treatment 3 was quickly dipping seeds directly in the Sure-

Koat™ product. The protocol for this treatment mimicked earlier lab tests for comparison purposes.

All seeds from the three treatments were allowed to air dry, packaged for shipping and sent for

germination testing.


Picture 1. Electrostatic spray system applying Sure-

Koat™ treatment to the undercarriage of the test

truck

Diagram 1. Weed Seed placement in open Petri

dishes on truck frame.

Results: Germination tests confirmed

that the electrostatic spray system

adequately distributed the Sure-Koat™

spray to achieve reduced seed viability

and seedling vigor as expected from lab

tests. There was little to no germination

from Scotch thistle seeds and spotted

knapweed seeds that germinated were

unable to survive (Graph 1). The Sure-

Koat™ system achieved 100% control

of Scotch thistle and 97% control of

spotted knapweed. Placement of petri

dishes and the control achieved was

also analyzed for all weeds tested.

There was no correlation between

placement of the petri dishes and the

control achieved. Results proved that

the charged droplets were able to

adequately cover surfaces that were not

in the direct line of spray from the electrostatic nozzles.

Charged droplets were able to adequately cover seeds

that were obstructed by items such as the truck frame,

struts and the 1” lip of the Petri dish.

Graph 1. Germination results of 400 seeds per treatment

from field test.

CONCULSION

More federal, state and county organizations

are adopting invasive weed management

strategies with greater emphasis on prevention.

More and more, these strategies are including

the requirement to clean weed seeds from

vehicles participating in projects with a high

probability of weed seed introduction or

potentially high maintenance costs if weeds

become established. In response, portable wash

equipment is being improved to meet the

industries requirements. Private and public

organizations participating in these programs

can benefit from being familiar with the options

available in portable vehicle wash equipment.

Choosing the equipment with the options

necessary to meet the growing policies, rules

and regulations is only one factor in being

prepared to meet those requirements. The

second factor is considerations of the best

equipment for meeting the needs of the

operator, such as efficiency, versatility, mobility

and seasonal use. Operators, regulators and

public agencies and equipment manufacturers

need to work together to keep expectations

and costs realistic while still accomplishing the

goal of reducing weed management costs.


WORKS CITED

AASHTO. (2004). Environmental Stewardship Practices, Procedures, and Policies for Highway Construction and Maintenance, Chapter 9. NCHRP Project 25-25(04) Center for Environmental Excellence by AASHTO.

Balbach H., R. L. (2008). Evaluating the Potential for Vehicle Transport of Propagules of Invasive Species. U.S. Army Engineer Research and Development Center ERDC/CERL TN-08-1.

Callicot, J. a. (1999). The Nature of Roadsides and the Tools to Work with it. FWHA-EP-03005. Office of Natural and Human Environment, Federal Highway Administration.

ESS. (2014). http://maxcharge.com/. 62 Morrison Street, Watkinsville, GA: Electrostatic Spray Systems.

Federal Register, V. n. (1999). Executive Order 13112. Presidential Document 61883.

Fleming, J. (2005). Vehicle Cleaning Technology for Controlling the Spread of Noxious Weeds and Invasive Species. San Dimas, CA: United States Department of Agriculture, Forest Service Technology & Development Program 0551-1203-SDTDC.

NISC. (2006). Policy Planning. Developed jointly by the Aquatic Nuisance Species Task Force and National Invasive Species Council prevention committee via the Pathways work team.

Taylor, K. M. (2011). Weed Seed Dispersal by Vehicles. Montana State University Extension MontGuide MT201105AG New 6/11.

TNC. (2007). Strategies for Effective state Early Detection/Rapid Response programs for Plant Pests and Pathogens. The Nature conservancy and Environmental Law Institute.

USDI. National Invasive Species Council Web Site http://www.doi.gov/invasivespecies/prevention/index.cfm. US Department of Interior.

Westbrooks, R. a. (2011). Invasive Plants _ Coming to America . . . . New Strategies for Early Detection and Rapid Response to Invasive Plants in the United States. US Geological Survy and EDDMapS. TM = Trademark of S-K Environmental


DOTWash Product overview: The S-K Environmental portable wash station with automated control is specially designed for fast

and effective work truck cleaning at work site or equipment housing facilities. The DOTWash has an

efficient two step process of high power undercarriage cleaning using automated water jet spinners

to remove debris, followed by an ultra low volume Sure-Koat™ process utilizing electrostatic

technology to increase weed seed control without jeopardizing efficiency (Sure-Koat™ product can

be changed seasonally to accommodate neutralizing products for mag-chloride residue). The S-K

equipment utilizes the best technology to meet environmental rules and regulations with easy to

handle, large heavy-duty vinyl mats that have built-in water baffled sides and corner reclaim pumps to

collect the removed debris. Sludge is processed through a coarse strainer, settling tank and a two

stage filtration system before returning the water to the supply tank for reuse. The S-K

Environmental portable wash station is the best in the industry for weed seed removal, meeting

environmental requirements and as the added benefit of use for winter maintenance of vehicles

exposed to corrosive material.

TM – trademark of S-K Environmental

equipment to meet growing policy, regulation, and … · new concepts implemented in ... dictate...

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