women
Restaurants
Campgrounds/
Recreation Areas
Rest Areas
RV Parks
Lodges/Inns
EPA Region 8's Technical Guide To
2016 Drinking Water Regulations
For Wyoming Small Business Owners

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Why Should You Read This Guide?
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If your business or facility makes water
available to the public by providing food, drinks,
restrooms or lodging, then you are likely
managing a public water system that must meet
certain safety requirements according to the
Safe Drinking Water Act.
Reading this guide could save you money!
If you do not monitor according to the drinking
water regulations and people get sick from unsafe
water you provide, it can result in costly lawsuits.
Furthermore, the reputation of your business may
be tarnished for years!
The Safe Drinking Water Act provides for stiff
penalties for water systems that have continuing
violations. One trailer park owner in Wyoming
received a $28,000 penalty for 15 violations.
Contact Us!
Environmental Protection Agency
Region 8 Drinking Water Unit
1595 Wynkoop Street (8P-W-DW)
Denver, CO 80202-1129
Phone: i-(Soo) 227-8917
Email: r8dwu(a)epa.aov
Fax: 1-877-876-9101
Improper sampling techniques can result in a
positive Revised Total Coliform Rule (RTCR) sample
that could result in additional follow-up lab costs!
Reading this guide will help you
PROVIDE SAFE DRINKING WATER!
It is your duty to ensure your water system is
operating in a way that protects the health of
your employees, your customers and yourself.
Using this guide may help you avoid many of
the common mistakes that can lead to
drinking water contamination. Remember:
Any time you have a question, do not hesitate
to contact the EPA Region 8 Drinking Water
Unit! We can be reached at I -800-227-8917.
For Important Tools and
Information Visit:

https://www.epa.gov/region8-waterops

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WHAT IS IN THIS GUIDE?
INTRODUCTION
Why Did I Receive This Guide?
Wyoming or EPA Region 8-Who Does What?
Where Do I Start?
How Do I Arrange To Have My Water Tested?
What Do I Do After I Receive My Test Results?
Pg.4
Pg.4
Pg-5
WHAT TESTING IS REQUIRED 8c WHY Pg. 6
Pg-7
Pg.8
Steps To Take After a Positive Total Coliform Sample Pg. 9
When Must I call EPA?	Pg. 10
What Do I Do With Copies Of The Test Results?	Pg. 10
WHAT ARE SANITARY SURVEYS?	Pg. 10
HOW TO PREVENT CONTAMINATION	Pg. I I
REQUIRED STARTUP PROCEDURES
FOR SEASONAL SYSTEMS	Pg. 12
REPORTING SYSTEM CHANGES	Pg. 12
EMERGENCY RESPONSE PLAN	Pg. 13^
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INTRODUCTION
Why Did I Receive This Guide?
If your business or facility serves an average of at least 25
people per day for at least 60 days in a year or has at least 15
water connections, it is classified as a transient non-community
(TNC) public water system (PWS).TNCs provide water by
means of serving food, water, drinks or ice; providing restroom
facilities or water faucets; and overnight lodging.Typical
examples ofTNCs are recreational areas, guest ranches, gas
stations, lodges, campgrounds and restaurants.
Wyoming Or Environmental Protection Agency
Region 8-Who Does What?
Wyoming is the only state that has not requested authority to
fully implement the Safe Drinking Water Act. The
responsibilities for ensuring that drinking water is safe in
Wyoming are shared between the Wyoming Department of
Environmental Quality (Water Quality Division) and the EPA
Region 8. In addition, public eating and drinking establishments
are monitored by either the Wyoming Department of
Agriculture's Consumer Health Services Division or by a local
health department. If an infectious pathogen or poison is
suspected in the water supply, the Wyoming Department of
Health also becomes involved.
Contact Us!
EPA Region 8 is responsible for the following activities:
Oversee monitoring/reporting of water testing Sanitary surveys
Technical assistance to water system operators Homeland security
Laboratory certification	Formal enforcement
Compliance determinations
The State of Wyoming is responsible for the following activities:
Plan and specification review	Construction/well drilling permits
Water rights	Operator certification
Capacity development	Operation of state laboratories
Food and beverage inspections	Financing drinking water projects
Source water protection	General public health
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Where Do I Start?
As an owner/operator of a public water system, you can access the
information that EPA maintains on your water system through EPA
Region 8's Drinking Water Watch (DWW) website. Please make
note of your PWS ID number assigned by EPA (it looks like
WY56XXXXX).This is your unique ID. The DWW website also
allows you to receive important reminders about your required
sampling. Be sure to sign up. It's a great tool to help keep you in
compliance!
Simple steps to register for Drinking Water Watch:
1.	Access the "Drinking Water Online" website at
https://www.epa.gov/region8-waterops.
2.	Click on the Registration and Account Maintenance link
under the Water System Info section.
3.	This will take you to: https://yosemite.epa.gov/r8/wateropsreg.nsf.
4.	Click on "Non-EPA users only - request a new account"
and follow the instructions to complete the registration process.
Please allow up to 6 hours for the registration process to
complete before you log on.
5.	Add Drinking Water Watch (DWW) to your favorites and log on
at the following secure website:
https://sdwisr8.epa.gov/Region8DWW/JSP/loginForm.jsp.
Note: You have to be a designated point of contact (POC) for a PWS
and need a valid working email address to sign up for DWW. In order to
complete the registration process you will need to know your unique
Outreach User ID, which you can obtain from us prior to registering.
Another resource that does not require a password is Drinking
Water Online, https://www.epa.gov/region8-waterops. which
contains many helpful tips. If you do not have access to the internet,
you can always call EPA Region 8 at 1-800-227-8917 to receive
information about your water system.
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What Testing is Required and Why?
All transient non-community (TNC) systems are required to test for total
coliform bacteria and nitrates/nitrites.Additionally, depending upon the source
of your water, you will either be subject to the Ground Water Rule, or the
Surface Water Treatment Rules (that includes those ground water systems that
are under the influence of surface water).
You can find the specific monitoring requirements for your water system after
logging into the Drinking Water Watch website (mentioned previously) or by
contacting the EPA. On the left side of the site click on "Sample Schedules and
Reminders" and then click on "Monitoring and Reporting Requirements."
1.	Revised Total Coliform rule
Coliforms are bacteria that are generally not
harmful and are naturally present in the
environment.They are used as an indicator that
other, potentially harmful, bacteria are present.
The presence of coliform bacteria in tap water
suggests that there couid be a problem with
existing equipment, treatment systems or a
breach in the distribution system which could
introduce contamination.
2.	Nitrate/Nitrite Rule
Nitrate and nitrite are inorganic chemicals found in fertilizer, sewage and wastes
from animals. High levels of nitrate or nitrite in drinking water have caused
serious illness and sometimes death in infants less than six months of age.
Increasing levels indicate problems at the source area and require further
investigation.
3.	Ground Water Rule (if you use a ground water source)
Sampling of ground water sources for coliform and E. coli analysis may be
required. Fecal contaminants, such as strains of E. coli bacteria can cause nausea,
diarrhea, cramps, and possibly death.
4.	Surface Water Treatment Rules (if surface water or ground
WATER IS UNDER THE DIRECT INFLUENCE OF SURFACE WATER)
Surface water can contain many different disease causing organisms and requires
specific treatment requirements (filtration and disinfection), daily monitoring and
monthly reporting. Your system must also be operated by a qualified operator. Call
EPA for more information on surface water requirements.
Contact Us!
US EPA Region 8 Drinking Water Unit Phone: i-(8oo) 227-8917
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V
Contact Us!
US EPA Region 8
Drinking Water Unit
11.595 Wynkoop Street
(8P-W-DW)
Denver, CO 80202-1129
Phone: i-(8oo) 227-8917
Email: r8dwu@epa.gov
Fax:1-877-876-9101
How do I Arrange to Have My
Water Tested?
1.	Contact an EPA Region 8 Certified Laboratory
Contact a laboratory that is certified by EPA Region 8 for that
specific contaminant. This information may be found at
https://www.epa.gov/region8-waterops by selecting the Certified
Laboratories link under the Monitoring and Sampling
section. If you do not use an EPA Region 8 certified laboratory for
each specific contaminant, the results will not be accepted. Ask
the lab if they will send all sample results for all contaminants to
EPA Region 8, or if you must send the results to EPA.
2.	Provide the Lab with Complete Reporting Information
Tell the laboratory that you are a public water system (PWS).
Your monitoring schedule provided by EPA contains most of the
information you need to complete the lab forms.You can even
send a copy of the monitoring requirements to the laboratory
to arrange for the specific testing needed at your system.
3.	Collect the Drinking Water Sample
The laboratory will send you a sampling kit which includes sample
bottles and instructions on how to properly collect the drinking
water sample. Call the laboratory if you have any questions after
reading the instructions. Please be sure to include your PWS
number on all sample forms.
• Revised Total Coliform Rule (RTCR) bacteria samples
should be collected in the distribution system at location(s)
identified in your sample siting plan (contact EPA if you need
assistance in creating a sample siting plan). Make sure to sample
early in your monitoring period, at the beginning of the month and
preferably on a Monday in case repeat sampling is required.
Avoid: Sampling from new faucets or newly repaired
faucets, leaky faucets, outdoor faucets (or those faucets
connected to softeners, hot water heaters or pressure
tanks), and setting down the bottle lid or exposing the
inside of the lid or bottle to anything other than the
sample water (do not rinse or remove the white powder
in the bottle).
Do: Take your time: sanitize the sample tap and your
hands; flush the tap for 5 minutes before taking the sample;
and minimize the time the sample bottle is opened- open
the bottle immediately prior to gathering your sample and
replace the lid as soon as the sample is collected. Keep in
mind that improper sampling can result in a positive/unsafe
sample that can lead to costly follow-up sampling.
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•	Nitrate and Nitrite Rule samples should be collected during your open season at
each entry point to the distribution system after treatment. Please refer to your Monitoring
and Reporting Requirements document to ensure you sample at all required sampling point
locations. Write those locations in the sampling location on your laboratory form.
•	Ground Water Rule samples must be collected within 24 hours of being notified of a
total coliform positive routine sample under the Revised Total Coliform Rule (RTCR). You
must sample and analyze all ground water sources in use at the time of the original TC+ for
the presence of E. coli for the same number of routine RTCR positive samples. (Note: If you
have three routine RTCR positive samples you will need to collect three source samples
from each ground water source.) The Ground Water Rule (GWR) sampling form must be
used, which may be found at: https://www.epa.gov/region8-waterops/reporting-forms-and-
instructions-reporting-forms. Please refer to your Monitoring and Reporting Requirements
document to ensure you sample at all required sampling point codes.
•	Surface Water Treatment Rule on-site monitoring is required to ensure your
treatment system is working: includes filtered water turbidity, chlorine residual at the
point of entry, status of UV unit (if used), and chlorine residual with your Revised Total
Coliform Rule bacteria sample(s). Additional onsite monitoring may be necessary
depending on the type of filtration utilized.
What do I Do after I receive My Test results?
1.	Nitrate/Nitrite Rule Sample Results
If your results exceed 10.4 mg/L for nitrates, and I mg/L for nitrites, call EPA
immediately at I -800-227-8917 and take a confirmation sample within 24 hours to
verify if dangerous levels exist in your water. Otherwise, send a copy of your results to
EPA (see contact information on page 10). Labs do not automatically submit these
sample results to EPA. It is your responsibility.
2.	Surface Water Treatment Rules Results
If on-site monitoring of filtered water turbidity exceeds your specific system limits,
or if the chlorine residual at the point of entry drops below 0.2 mg/L, you must
notify EPA within 24 hours by calling 1-800-227-8917. Otherwise, please send your
monthly reports to EPA.
3.	Revised Total Coliform Rule (RTCR) Sample Results
If your routine sample was safe or absent, continue to sample as required by your
monitoring schedule. If you had an unsafe or positive (total coliform present) sample,
follow the flowchart on the next page or consult your Monitoring and Reporting
Requirements. Do not shock chlorinate the system before collecting repeat, routine or
source samples unless you have prior approval from EPA Region 8. If you have an
E. coli positive you must call EPA and speak with the RTCR Manager immediately.
4.	Ground Water Rule (GWR) Sample Results
If you have an E. coli positive source sample, you must call EPA immediately and speak with
the GWR Manager. Within 24 hours, collect five additional GWR source samples from the
same source that had the EC+. If you previously took a combined source sample, you will
need to sample all sources separately. Tier I public notice must be provided.
If the source is solely total coliform positive, you should inspect your system to identify the
cause of the positive result, but there is no further sampling requirement.
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Follow Your RTCR Sampling Plan and the Flowchart Below
to Take Your Required Total Coliform Samples
** If any of the following criteria are met, you must contact the RTCR Manager immediately at
1-800-277-8917, and a Level 2 Assessment must be completed by a party approved by EPA
within 30 days:
-	You previously triggered a Level 1 Assessment within a rolling 12 month period;
-	You have any combination of TC+ and EC+ routine and repeat samples; or
-	If you failed to collect all required repeat samples after an EC+ routine sample result.
Additional RTCR information and RTCR Assessment forms can be found at:
https://www.epa.gov/region8-waterops/revised-total-coliform-rule.
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When Must I call EPA?
•	Any E.coli positive water sample result
•	When the average result from Nitrate initial and confirmation samples exceeds 10.4 mg/L
•	Anytime your on-site monitoring of filtered water turbidity exceeds your specific system
limits, or if the chlorine residual at the point of entry drops below 0.2 mg/L
•	When animal contamination is present in finished water storage tanks
•	Failure or interruption of a key water treatment process
•	Natural disasters that disrupt the water supply or distribution system
•	Chemical spills or other contamination that may impact the water supply
What Do I Do With Copies of the Test results?
Send copies of the results to EPA using one of the following methods. Include your
PWS name and PWS ID# on all correspondence.
r
Email:
R8DWU@epa.gov

Fax:
1 "(877) 876-9101
L
Mail:
US EPA Region 8
Drinking Water Unit (8P-W-DW)
1595 Wynkoop St.
You are required to keep a copy of all laboratory sample results and
correspondence with EPA.
•	RTCR and Groundwater Rule records must be kept for 5 years
•	Nitrate/Nitrite records must be kept for 10 years
•	Surface Water Treatment Rule records of onsite turbidity and
chlorine monitoring must be kept for 10 years
WHAT ARE SANITARY SURVEYS?
At least once every five years you will be contacted by EPA or an EPA contractor
to set up a visit at your facility for a sanitary survey.The purpose of the sanitary
survey is to evaluate and document the capabilities of the water system's sources,
treatment, storage, distribution network, operation and maintenance, and overall
management to ensure the provision of safe water. Sanitary surveys can help
identify deficiencies in the water system before any contamination of the public
water supply occurs.You can go to the following website to learn more about how
to prepare for a sanitary survey: https://www.epa.gov/region8-waterops/system-
and-operational-improvements-sanitary-surveys.
After a sanitary survey is completed by an EPA employee or contractor, you will
receive a letter and report in the mail a few months later.Within the letter, you
may see a list of significant deficiencies and/or recommendations that require your
attention.The letter will state if you are required to correct any significant defi-
ciencies.You must keep sanitary survey records and follow up action records for
10 years.
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HOW TO PREVENT CONTAMINATION
• The first barrier against contaminants entering a water system is maintaining
adequate positive pressure in the water lines. If a water system loses pressure
due to a line break or power and/or pump failure, contaminants can be drawn
into the water from the surrounding soil. Call EPA immediately for guidance
on what to do if your system experiences a loss of pressure.
Tank and well vents should have 24-mesh
non-corrodible screen (0.03 inch openings)
Learn how to prevent contamination from entering wells and water storage tanks at
https://www.epa.gov/region8-waterops/system-and-operational-improvements-sanitary-surveys:
click on the blue underlined words for Technical Tips.
Inspect wells routinely for problems such as: lack of bolts in the well cap, lack of 24-mesh
screen on the well vent, or broken/missing well cap or sanitary seal.
Tank and well vents should have 24-mesh non-corrodible screen (0.03 inch openings)
Eliminate cross-connections and install backflow prevention devices. Connections that can
contaminate your water line include:
*	Hand-held pesticide or herbicide applicators attached to garden hoses
*	Stock tanks with hoses lying in the tank without an air gap
•	Eliminate rodents and their dropping from facilities utilizing information
contained at the following site:
www.cdc.gov/ncidod/diseases/hanta/hps/noframes/prevent3.htm.
•	Avoid storing, mixing or using pesticides, fertilizers, degreasers, fuels, and other
pollutants near the well.
• Maintain water treatment units as recommended by manufacturers
(replace filter cartridges, regenerate salt, etc.).
•	Disinfect drinking water wells after repairs or modifications.
•	Keep your spring areas dry and your spring collection boxes watertight.
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REQUIRED STARTUP PROCEDURES
FOR SEASONAL SYSTEMS
If your public water system is open only part of the year, it is considered a
seasonal system. Under the Revised Total Coliform Rule (RTCR),you are
required to complete a Seasonal Start-up Checklist and submit the form to
our office prior to serving water to the public for the season. You
will be in violation of the RTCR and subject to enforcement action if you
serve water to the public before completing the start-up procedures and
submitting this form to our office.
The Seasonal Start-up Checklist form can be found at the following site:
https://www.epa.gov/region8-waterops/revised-total-coliform-rule-seasonal-startup-checklist.
Please send the filled out form and certification to EPA at R8dwu@epa.gov
(Attention: RTCR Manager) prior to serving water to the public each
season.
Please notify EPA before you make any changes to the water system's
source of water, treatment equipment, system facilities, ownership,
contact person or number of people served. Please fill out the Change
to PWS form found on the reporting forms page at
https://www.epa.gov/region8-waterops/reporting-forms-and-instructions-reporting-forms
and send it to EPA, or call EPA to request the form.
REPORTING SYSTEM CHANGES
Contact Us!
US EPA Region 8 Drinking Water Unit Phone: i-(8oo) 227-8917
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Emergency Response Plan for Transient
Ground Water Systems
All public water systems must have an Emergency Response Plan (ERP) that details emergency operations
procedures for possible foreseeable emergencies such as power outage, loss of water, equipment failure,
and other emergency conditions. When a sanitary surveyor conducts a sanitary survey on your system they will
ask if you have an ERP. Please fill this form out now, and keep it handy.
System Name:	
Public Water System (PWS) Number: WY56	
Operator Name/Cell #:	
Back-up Operator Name/Cell #:	
Owner Name/Cell #:	
Population Served:	 Number of Service Connections:	
Chemicals Used to Treat the Water:	
Name/# of Chemical Supplier:	
Life Threatening Emergency #:	
County Sheriff #:	
Critical/Vulnerable Customer Contact #s:
EPA Emergency Contact (Monday - Friday 9-4 pm Mountain Time) #: 1-800-227-8917
EPA After Hours Emergency Contact Number: 303-294-1788. Tell the operator you are drinking water
operator with an emergency situation.
Wyoming Association of Rural Water Systems #: 307-436-8636
WY DEQ District Engineer Name and #:	
Alternate Sources of Drinking Water #:	
Power Company #:		Electrician #:	
Plumber #:	 Parts Supplier #: 	
Wyoming Water Agency Response Network #: 307-637-6471	Website: www.wyowarn.org
TOTAL COLIFORM/E. COLI POSITIVE SAMPLE, see the following website:
https://www.epa.gov/region8-waterops/emergencies-and-securitv-follow-unsafe-total-coliform-rule-positive-sample
LOSS OF PRESSURE/WATER OUTAGE ACTION PLAN*
WATER CONTAMINATION ACTION PLAN*
Shut-off valve location and instructions:
Location of spare or repair parts:	
ALWAYS CALL THE EPA TOTAL COLIFORM RULE OR GROUND WATER RULE MANAGER
IF YOU HAVE AN E. COLI POSITIVE/UNSAFE SAMPLE AT 1-800-227-8917
*Quick Emergency reference material/Public Notices for Loss of Pressure, Boil Orders, Do Not Drink, etc. can be
found at: https://www.epa.gov/region8-waterops. Click the topic under the top "Emergencies and Preparedness" header.
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SPECIAL THANKS TO THE FOLLOWING:
	\
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
REGION 8
	P
EPA New England
Wyoming Office of Tourism
Wyoming Association of Rural Water Systems
Washington State Department of Health's Office of Drinking Water
Maine Center for Disease Control & Prevention's Office of Public Health & Human Services
February 2016
Drinking Water Unit
1595 Wynkoop Street (8P-W-DW)
Denver, CO 80202-1129
Phone: l-(800) 227-8917
Email: r8dwu@epa.gov
Fax: 1-877-876-9101

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