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8030
Appendix T1 Discharges
to the Sanitary Sewer System |
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1.0
Introduction
Jefferson Lab’s
sanitary sewer system discharges to the Hampton Roads
Sanitation District (HRSD) wastewater treatment plant in the Denbigh area
of Newport News. The treated wastewater is subsequently discharged to the James River.
Some liquid waste, such as oil, chemicals, and/or grease, can cause a shock load on a wastewater treatment facility that, in turn, causes unacceptable effluent to be discharged to surface waters. To avoid problems, only domestic wastes or wastes specifically allowed by permit should be discharged to drains, sinks, and toilets. For a list of prohibited discharges refer to ES&H Manual Chapter 6730 Appendix R1 Prohibited Sanitary Sewer Discharges.
Wastewater that does not meet HRSD specifications must be disposed of by alternate methods.
Environmental, Safety, Health, and
Quality (ESH&Q) Reporting coordinates the provision of requests for special
discharges to the sanitary sewer and performs permit-identified reporting.
2.0
Industrial Wastewater Release Program
The Lab’s
Industrial Wastewater Discharge Permit contains compliance conditions and is administered by the HRSD. The wastewater collection system is grouped into four areas:
·
Area A encompasses the VARC,
and has no routine sampling requirement.
·
Area BC includes CEBAF Center
and the residence facility, and also has no routine
sampling requirement.
·
Area D, the Test Lab, which is monitored for pH at the sampling point Manhole D,
encompasses discharges from acid neutralization systems.
·
Area EF encompasses the EEL
Building and the structures on the accelerator site. Manhole EF is monitored
for pH.
Refer to Table 2 in ES&H Manual Chapter 2420 Permits and Authorizations from External Agencies for permit issues and site responsibilities.
A special sampling point, the Hall Floor Drain sump, consolidates potentially activated water discharges from the Experimental Halls and the accelerator tunnel. Discharges from this sampling point are analyzed for tritium and other gamma-emitting radionuclides. The composite results, shown in relation to the total discharge through Area EF, are maintained in accordance with the HRSD permit. Refer to ES&H Manual Chapter 8030 Appendix T2 Activated Water Management for more information.
HRSD randomly monitors wastewater and Jefferson Lab is subject to punitive actions if we discharge unauthorized materials.
2.1 Prohibited sanitary sewer discharges
There are
certain materials and chemicals that are strictly prohibited
by HRSD
from disposal down the drain. If you are
uncertain about using any particular substance that could end up down the
drain, contact the Jefferson Lab Material Safety
Data Sheet (MSDS) Coordinator at ext. 7882 for assistance.
2.2
A broad list of
prohibited materials and chemicals
· Petroleum or mineral based oils
·
Flammable
liquids, solids,
or gases
·
Toxic or poisonous liquids,
solids, or gases
·
Wastes with a pH < 5.0
(such as acids)
·
Solids or viscous substances
that may block sewer system lines
·
Excessive discharges
of significant quantities of unpolluted rainwater and such.
2.3 Important Reminders:
·
Observe the list of
prohibited discharges. If uncertain, ask
your supervisor or local ESH&Q staff for guidance.
· Solid debris from cleaning operations should be
separated from the wastewater, if possible, and be put in the regular
trash.
3.0
Process for Obtaining Authorization for Discharges
If an activity (a routine process, or a one-time or infrequently
performed process) is identified that could generate a sanitary sewer discharge
that is not covered by the Lab’s Industrial Wastewater Discharge Permit, then
the waste
stream should be reviewed and modified to meet HRSD criteria
as noted in the box below, or the following steps should be taken to request
authorization for discharge to HRSD.
Step 1: Identify Waste Streams and Quantitative Data
Provide the following information to the extent known to ESH&Q
staff, who will provide guidance and assistance.
·
activity / process
description and location
·
waste stream characteristics
– composition and concentration of contaminant
·
quantity generated – daily
average volume, batch volume, and frequency
·
quantity discharged each time
– frequency, duration of discharge, and time of day performed
·
identify where the waste
will be discharged if approved neutralization tank location or sink location
Step 2: Share Information
Provide the information to ESH&Q for use in
preparing a proposal to HRSD. ESH&Q will coordinate information
transmittal with HRSD and keep
the Thomas Jefferson Site Office informed as necessary.
Special Notes
·
For nonroutine
or unusual requests, the same information must be provided
to ESH&Q.
·
Approval is
not guaranteed.
·
Discharge of the waste
is prohibited until approved by HRSD. Requests can take from two to thirty days so plan ahead if possible.
·
In the event that the
sampled waste is from a routine process that is typically
allowed to discharge to the sewer system, and the sampling results show
concentrations above regulatory guidelines of a regulated constituent,
discharge may still be allowed.
· Metal-contaminated material discharge is limited by concentration no matter which discharge route (neutralization tank or sink drain) is being used.
·
No matter which disposal route is selected, disposal
procedures will be reviewed by ESH&Q staff.
Step 3: Determine method to obtain representative samples
A representative ESH&Q staff member and HRSD will likely
observe the production process to determine at what point samples to identify
actual waste characteristics should be taken. They will also review the method of
collection and disposal, such as whether the waste will be
discharged through a neutralization tank system.
HRSD will work with
Jefferson Lab to determine the total number of preliminary samples required.
Step 4: Devise Jefferson Lab-Coordinated Sampling Plan and
Discharge Procedure
The waste generator and ESH&Q staff will determine the most
appropriate sampling plan for the activity from information provided by HRSD. ESH&Q staff will provide the sampling
plan to ESH&Q Reporting for submittal to HRSD. Upon notification of approval from HRSD, the waste
generator’s department will be responsible for the sampling and analysis. The HWC can assist with sampling
arrangements.
Step 5: Waste
Stream Characterization (Prior to Disposal)
The waste generator
will implement the sampling plan. Results
of the analyses shall be provided to ESH&Q staff,
the HWC, and ESH&Q Reporting. ESH&Q
Reporting will transmit the results to HRSD for acceptance. The HRSD submittal will
include any updated information regarding the waste generation process,
including variances that could occur.
Step 6: HRSD Disposition – Approval or Disapproval
·
If more sampling data is required by HRSD, then
submit additional sampling information as described in Step 4.
·
If the data
are adequate and the waste stream
meets required conditions and can be disposed of through the sanitary sewer,
then, if the waste product can be disposed of through the agreed upon path,
which is either directly to the sewer system or through the appropriate
neutralization system, the final agreement with HRSD may have
additional process sampling requirements that will apply. This information will be obtained and provided
to ESH&Q Reporting by the dates noted in any agreement. The waste generator’s log will also note the
method by which the product is disposed.
·
If the data are
adequate and the waste stream,
in the current process, does not meet suitable conditions for sanitary sewer
disposal, then as the waste stream
is not approved for sewer disposal, consult the HWC for assistance with
disposal alternatives. The HWC may also
be able to provide advice on how to alter the process to qualify for sewer
disposal or to select an alternate disposal method.
Important Contacts:
Hazardous Waste Coordinator (HWC) |
ext. 7882 |
ESH&Q Reporting |
ext. 7308 |
Facilities Management |
ext. 7400 |
Radcon Electrical/Mechanical Maintenance Services Manager |
ext. 7417 or
876-1743 ext. 7671 |
4.0
Revision Summary
Revision 0.1 – 12/11/12 - Updated
to reflect compliance with DOE Order 458.1 Radiation Protection of the Public and the
Environment.
Revision 0 - 08/01/03 – Original
Content.
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ISSUING
AUTHORITY |
TECHNICAL POINT-OF-CONTACT |
APPROVAL
DATE |
REVIEW REQUIRED
DATE |
REV. |
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ESH&Q Division |
08/01/03 |
04/28/12 |
0.1 |
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