HomeMy WebLinkAbout; ; JURMP Annual Report 2007-2008 IDDE Section 7 2007-2008 12/15/08; 2008-11-26Section 7 - Introduction to IDDE Orders 2001-01 and Order 2007-0001
Final FY 07-08
City of Carlsbad JURMP Annual Report Page 1-1
INTRODUCTION
This section of the City of Carlsbad’s (City) Jurisdictional Urban Runoff Management Plan
(JURMP) FY 07-08 Annual Report addresses the Illicit Discharge Detection and Elimination
(IDDE) requirements of the Regional Water Quality Control Board (Regional Board) Orders No.
2001-01 and 2007-0001 (NPDES No. CAS0108758) commonly known as the Municipal Storm
Water Permit (Permit).
Order No. 2007-0001 was issued January 24, 2007, and replaced Order No. 2001-01 issued in
2001. The new permit went into effect on March 24, 2008 partway through FY 07-08, therefore
this report covers both reporting periods: from July 1, 2007 to March 23, 2008 under Order No.
2001-01, as well as from March 24, 2008 to June 20, 2008 under Order No. 2007-0001. The
report is segregated into two main sections corresponding to the permit and time frames listed
above.
The Regional Board issued these Permits to prevent and control polluted urban runoff from
Municipal Separate Storm Sewer Systems (MS4s) discharging to downstream water bodies. As
runoff flows through urban areas, it can carry harmful pollutants such as pathogens, sediments,
fertilizers, pesticides, heavy metals, and petroleum products. Pollutants entering a receiving
water body through the MS4 may harm aquatic life through toxicity and habitat degradation.
Each of the Copermittees listed in the Permit was required to develop a JURMP outlining their
approach to protecting water quality and preventing harmful impacts from polluted urban runoff
submitted to the Regional Board in March of 2008. The Permit requires the submittal of an
Annual Report to the Regional Board to document the progress and implementation of the
JURMP with Addendum No. 2 outlining submission of this IDDE section in December of each
year.
The City is a municipal corporation, following the Council-Manager form of government. City
Departments fall under one of five major service areas (MSA’s): Public Safety, Administrative
Services, Public Works, Community Development, and Community Services. While the City
created the Storm Water Protection Program to help implement the Permit, program
implementation is carried out by several departments within different MSA’s. This allows for
program implementation and new requirements to be incorporated into daily activities of City
employees, instead of being viewed as completely new requirements without a connection to
on-going services.
The City encompasses just over 42 square miles and borders 6 miles of coastline. Carlsbad
also contains or borders three coastal lagoons (Buena Vista, Agua Hedionda and Batiquitos
lagoons). The City is part of the Carlsbad Hydrologic Unit (Watershed), which includes four
separate sub-watersheds that run through Carlsbad. These include each of the three lagoons
and their respective drainage areas, in addition to a fourth watershed commonly known as
Encinas Creek. Portions of Agua Hedionda Lagoon and Buena Vista Lagoon are listed as
impaired for bacterial indicators and sedimentation/siltation on the Federal Clean Water Act
Section 303(d) Impaired Water Bodies list. Buena Vista Lagoon is also impaired for nutrients.
While this report focuses on the City’s implementation of the JURMP and not the Watershed
program, the two are becoming more intertwined as waterbodies and implementation strategies
cross programmatic and jurisdictional boundaries.
Section 7 - Introduction to IDDE Orders 2001-01 and Order 2007-0001
Final FY 07-08
City of Carlsbad JURMP Annual Report Page 1-2
Highlights
There were several highlights to be noted in FY 07-08 as follows:
• The City responded to a total of 226 complaints of illegal discharges to the MS4
• There was an increase in the percentage of complaint calls originating from City staff
between the first ¾ of the year, and the last ¼, increasing from 48% to 59%
• The City’s existing nine Smart Covers saved 4 wastewater spills in the first ¾ of the
year, and the City added a tenth Smart Cover in the last ¼ of the year
• The City continued daily, quarterly, annual inspections of the wastewater system
• The City conducted 4106 manhole inspections and cleaned 188.24 miles of sewer lines
• The City conducted targeted outreach to >800 residents resulting from Dry Weather
Program investigations
• There was a decrease in exceedances in coastal monitoring in both storm drains and
receiving waters
• The City conducted 6 high level investigations resulting from either notification to or from
the Regional Board, or those involving hazardous materials
• The City issued 73 enforcement actions consisting of an informational letter, verbal or
written warning, or NOV
• The City conducted two Fats, Oils, and Grease workshops in the last ¼ of the year.
Notable Activities
Notable activities for FY07-08 include:
• There was an increase in complaints responded to from the hotline, with a total number
of calls in FY 06-07 of 154, and a total # of calls in FY 07-08 of 226
• The City conducted two Fats, Oils, and Grease workshops in the last ¼ of the year
• The City added a tenth Smart Cover in the last ¼ of the year
• The City conducted 6 high level investigations resulting from either notification to or from
the Regional Board, or those involving hazardous materials.
Section 7 - IDDE ORDER 2001-01
Final JULY 1, 2007 – MARCH 23, 2008
City of Carlsbad JURMP Annual Report Page 7-1
7.0 ILLICIT DISCHARGE DETECTION AND ELIMINATION COMPONENT
Under Order 2001-01, the City continued to conduct a proactive program for detecting and
eliminating illegal discharges and illicit connections to the storm drain system during this
reporting period. The City’s program actively sought to identify and eliminate illicit discharges
and connections by conducting illegal discharge investigations, responding to spills and sewage
overflows, conducting monitoring, and performing routine cleaning and maintenance activities
on the sewer and storm drain systems. Several notable activities occurred between July 1,
2007 and March 23, 2008 and are described below.
• Addition of staff – an Environmental Specialist I in October 2007, and a new Public
Works Supervisor for the Storm Drain Maintenance Division
• Continued operation of the stormwater hotline and complaint response with a summary
in Section 7.2.
• Continued 24 hour spill response for wastewater and storm drain emergencies
7.1 Introduction
The Illicit Discharge Detection & Elimination (IDD&E) Program for the City encompasses all
sources of solids and liquids containing pollutants and sanitary sewer system wastewater that
may enter the municipal separate storm sewer system (MS4). The Program focuses on
prevention while actively pursuing, investigating, and eliminating illicit discharges. The City
facilitates public reporting of illicit discharges and connections as described in Section 7.2.
Continued efforts are in place to facilitate reporting of spills, immediate response to spills, and
continued education to prevent spills. These efforts are described in Section 7.3. In addition to
complaint and spill response, the City continues to perform monitoring in support of the IDDE
program. These monitoring programs are described in Section 7.4. The previously mentioned
parts of the IDDE Program require routine follow-up investigations and may prompt enforcement
actions by the City. These efforts are described in Section 7.5. The City strongly encourages
voluntary elimination and cleanup of illicit discharges; however, enforcement is escalated to
obtain compliance, where necessary.
7.2 Public Reporting of Illicit Discharges and Connections
As required under Order 2001-01, the City continued to publicize and facilitate public reporting
of illicit discharges and water quality impacts. Methods to publicize and facilitate public
reporting included:
• Brochures and Publications
• Outreach events
• The City’s Website
• Internal training
• Operation of a Storm Water Hotline
• Operation of an Environmental Programs Hotline
All outreach methods utilized are described in detail in Sections 8.0 and 9.0, the Education and
Public Participation Sections of the Annual Report submitted to the Regional Board on
September 30, 2008.
Section 7 - IDDE ORDER 2001-01
Final JULY 1, 2007 – MARCH 23, 2008
City of Carlsbad JURMP Annual Report Page 7-2
During regular office hours from Monday to Friday, Storm Water Protection Program staff
answered the storm water hotline, checked emails to the storm water account, and forwarded
reported information to the appropriate personnel. When calls were received after office hours,
the hotline provided a voice mail message (in English and Spanish) directing complainants to
leave a message for follow-up or be directed to police dispatch for emergency response (i.e.,
dumping of hazardous materials into the storm water system).
The public continued to use the storm water hotline and e-mail address to report illegal
discharges to the storm drain system. During this reporting period, the Storm Water Program
received 161 reports regarding urban runoff or storm water. Figure 7.1 illustrates the
breakdown of storm water complaints by reporting mechanism.
Figure 7.1 Storm Water Complaints by Reporting Mechanism
July 1, 2007 - March 23, 2008 (Order 2001-01)
Field
19%
Mail
1%
Phone
23%
Storm Water Email
6%
Storm Water Hotline
50%
Web or e-mail
1%
Other calls ranged from information requests, to solid waste inquiries, to other City business.
Sources of illegal discharge reports to the City included approximately 44% from the public,
48% from City employees, and 8% from outside agencies. Figure 7.2 illustrates the breakdown
of reporting parties for the storm water complaints received during this reporting period.
Section 7 - IDDE ORDER 2001-01
Final JULY 1, 2007 – MARCH 23, 2008
City of Carlsbad JURMP Annual Report Page 7-3
Figure 7.2 Storm Water Complaints by Reporting Party
July 1, 2007 - March 23, 2008 (Order 2001-01)
City Staff
42%
Outside Agency
8%
Public
44%
Storm Water Inspector
6%
The Storm Water Protection Program responded to 161 complaints potentially related to urban
runoff during this reporting period. Figure 7.3 illustrates the breakdown of storm water related
complaints by type of complaint.
Figure 7.3 Storm Water Complaints
July 1, 2007 - March 23, 2008 (Order 2001-01)1%
1%
4%
25%
4%
1%
1%8%
39%
3%
1%
12%Drainage-Water ponding/pooling (1%)
Sprinklers-Private Property (1%)
Storm Drain-Dirt/Debris - Piles (4%)
Storm Drain-Dumping to Storm Drain (25%)
Storm Drain-Erosion from Existing Development (4%)
Storm Drain-Labels or Stencils (1%)
Storm Drain-Needs Cleaning - Private Property (1%)
Storm Drain-Vehicles Leaking Oil/Fluids (8%)
Storm Drain-Washing to Storm Drain (39%)
Storm Water-General Information/Questions (3%)
Vehicles-Leaking Oil or Fluids (1%)
Water Conservation-Private Property (12%)
Section 7 - IDDE ORDER 2001-01
Final JULY 1, 2007 – MARCH 23, 2008
City of Carlsbad JURMP Annual Report Page 7-4
The City continued to operate a Household Hazardous Waste (HHW), and used oil recycling
program. During the entire FY 07-08, the City collected and disposed of approximately 148 tons
of HHW (including recycled or diverted).
Residents used the Environmental Programs hotline and e-mail address to request information
about the HHW program, trash, and recycling. The City’s RFA system was used to track calls
about Environmental Programs comments and questions from residents. From July 1, 2007 to
March 23, 2008 the Environmental Programs Division responded to 60 complaints related to
HHW, recycling, and solid waste. Table 6.4 in the Residential section of the City’s FY 07-08
JURMP Annual Report submitted to the Regional Board on September 30, 2008 summarizes
these complaints.
7.3 Spill Reporting, Response, and Prevention
Spill Response
City employees are trained to follow the City’s Sewer Overflow Prevention Plan/Response Plan.
Staff training was conducted semi-annually, either by tailgate or all-hands class format. All spill
response incidents were tracked in the Hansen system or spill reports. Sanitary sewage
overflow responses were documented as required on the Sanitary Sewer Overflow Report
Form, which was sent via fax to the Regional Board, County Health Department, and the Storm
Water Protection Program.
During this reporting period the City responded to 17 sewage overflows or spills. Four of these
spill responses involved sewer mains, of approximately 5,686 gallons. The other 13 spill
responses were due to private sewer lateral spills, of approximately 916 gallons. Of an
estimated 5686 gallons spilled, 2061 gallons were recovered with approximately 3625 gallons
entering the environment. The overflow reports are found in Appendix 7.1.
Public Works Maintenance and Operations staff (M&O) continued to respond and coordinate
sewage spill response with the Leucadia Waste Water District (LWWD) and Vallecitos Water
District for spills that occur outside the M&O jurisdiction. During normal business hours, calls
were dispatched by M&O to field units for immediate response and evaluation. After working
hours, phone numbers were routed through police dispatch to M&O standby personnel.
A portion of the Leucadia Wastewater District (LWWD) collection system is located within the
City limits. LWWD are responsible for operating and maintaining their system, including
responding to overflows and spills. However, the City’s M&O Department responds or provides
assistance when requested. During this reporting period, LWWD responded to four sewage
overflows in Carlsbad, three of which were private lateral spills. A total of 340 gallons of
sewage was spilled with 250 gallons recovered, resulting in the release of 90 gallons of sewage
into the environment. Response details are found in Appendix 7.2.
A portion of the Vallecitos Water District (VWD) sewage collection system is also located within
the City limits. They are responsible for operating and maintaining their system, including
responding to overflows and spills. However, M&O responds or provides assistance when
requested. During this reporting period, VWD reported one sewage overflow in the City of
Carlsbad. Seven gallons were released and all seven gallons were recovered, with zero gallons
discharged to the environment.
Section 7 - IDDE ORDER 2001-01
Final JULY 1, 2007 – MARCH 23, 2008
City of Carlsbad JURMP Annual Report Page 7-5
The City continued to actively prevent and respond to sewage spills and other spills, and to limit
discharges from the sanitary sewer system to the MS4. This occurred through public education
and outreach, inspections, preventive maintenance, complaint response, and spill response
(containment and remediation). The City operated a total of 283.5 miles of sewer mains and
City staff maintained 253 miles of 12” and under sewer mains. Large sewer trunk mains are
maintained by both City staff and contract work. City staff maintains 14 sewer pump stations.
The City of Carlsbad had nine Smart Covers to monitor flow levels in problem sewer manholes
during this reporting period, and plans to add one more next quarter. Smart cover alarms saved
the City from four spills during the reporting period.
Table 7.1 contains a summary of information associated with miles of sewer mains and spills.
Table 7.1 Summary
Time Period
Number of
Reportable Spills1
Reportable
Gallons Spilled
Total Miles of
Sewer Mains
July 1, 2007 - March 23, 2008 5 5686 283.5
1 Includes all spills caused by a failure in the sewer system (excludes recycled water spills
and/or spills from sewer laterals).
The following inspection and preventive maintenance activities were conducted during this
reporting period.
Inspection
From Monday through Friday, all sewer pump stations were inspected daily. The ten largest
pump stations were also inspected on Saturdays and Sundays. The operator inspected the
electrical systems quarterly and the pumps and shafts were serviced annually. In addition,
outside services were contracted to inspect the electrical services annually. The wet wells were
cleaned every six weeks or more frequently if necessary.
Eleven pump stations are equipped with telemetry which were inspected daily. This included
checking the 24-hour history records, pump gallons per minute, wet well on-off cycles and pump
alternating cycles. The City conducted most pump repair work, although any needed machine
work was performed by outside services. In the case of emergencies, the City has a 24-hour
duty person, and cell phones were issued to each member of the Wastewater Operations staff,
and Supervisor. In the case of power failures, ten of the stations have onsite generators and
three stations can be powered by the City’s two trailer mounted generators. The remaining
station has 24 hours of storage capacity and can be maintained by a vacuum or pumper truck.
Education
Educating the public on the proper disposal of fats, oils and grease is one of the BMPs used to
prevent sewage spills. The City continued to distribute the Water Environment Federation
brochure entitled “Fat-Free Sewers.” These brochures were distributed at various public events
and during field visits. The City planned Fats, Oils and Grease (FOG) workshops for the Food
Service Establishments.
Preventive Maintenance
During this reporting period, the City performed routine preventative maintenance and
inspections of the sanitary sewer system, which included video inspections, access hole
inspections, semi-annual inspections of three major trunk lines, and routine cleaning of sewer
mains. For the reporting period July 1, 2007 through March 23, 2008, the City crews performed
Section 7 - IDDE ORDER 2001-01
Final JULY 1, 2007 – MARCH 23, 2008
City of Carlsbad JURMP Annual Report Page 7-6
approximately 3,496 manhole inspections. Regular monitoring of the sewer system was
achieved with routine cleaning and manhole inspections. Sewer system surveillance was
conducted on a regular basis. Flow monitoring was performed to compare the flows in dry and
wet seasons. Anything unusual was reported and followed up on.
Approximately 147.51 miles of sewer lines were cleaned during this reporting period. The
maintenance schedule is designed to provide more frequent cleaning for identified trouble
areas, with siphons being cleaned annually, low flow and flat lines cleaned semi-annually, and
grease problem areas cleaned quarterly. The Buena Vista Force Main is inspected Monday
through Friday, by walking all accessible areas from the lift station west to I-5.
Complaint Response
The Storm Water Protection Program occasionally depends on other City departments to assist
with investigations and remediation during field reviews. M&O and the Storm Drain
Maintenance Division were key to prompt, effective responses to investigations involving spills
and clean ups. Regular meetings and discussions about compliance issues facilitated this
interdepartmental coordination effort.
M&O personnel responded to 149 sewer stoppage complaints during this reporting period.
These requests and the City’s response were tracked electronically in the RFA and Hansen
systems.
Other Spills
The City’s Emergency Services (Fire/Police Departments) continued to respond to reports of
hazardous materials spills and discharges in Carlsbad. Fire Department personnel were trained
in hazardous material emergency response and identification of hazardous materials and other
City departments relied on the Fire Department to assume command during hazardous
materials incidents. Emergency services may request assistance from the Streets Department
or Storm Drain Maintenance Division (SDMD) to contain discharges that have the potential to
endanger life, property, and/or the City right-of-way, control traffic, and provide secondary
perimeter boundaries as directed by Emergency Services’ staff.
During this reporting period, the City’s Spill Response Procedure continued to be used to detail
the roles and responsibilities of Emergency Services, Streets Department, M&O, and the Storm
Water Protection Program. If Emergency Services was first on the scene of an unidentified spill,
the Incident Commander suspected the substance to be of a hazardous nature, emergency
response procedures were implemented. Incident Commanders retained a copy of the
Department of Transportations “Emergency Response Guidebook” which lists classifications of
hazardous materials and recommendations for handling materials.
The San Diego County DEH HIRT, through a Joint Powers Agreement, was involved in any
significant spills of a hazardous nature. The County maintains these records, as does the State
OES. Minor petroleum or other small spills on City streets were handled by the Streets
Department or SDMD using absorbents, sweeping, and proper waste disposal. These cleanup
requests were documented in the City’s RFA or work order systems. During this reporting
period, there were 9 other spills (non-sewage related) in Carlsbad as referenced in Appendix
7.3.
Section 7 - IDDE ORDER 2001-01
Final JULY 1, 2007 – MARCH 23, 2008
City of Carlsbad JURMP Annual Report Page 7-7
PREVENTION MEASURES OF SEWAGE INTRUSION INTO MS4
The City of Carlsbad’s Engineering Standards have several measures to prevent sewage
intrusion into municipal separate storm sewer systems (MS4).
1. All gravity sewer pipes and laterals are required to have gasketed joints, which create
water tight joints (Volume 1, Chapter 6, Item 3.A, 3.C, and 3.F). The water tight joints
are tested using the methods indicated in Standard Specifications for Public Works
Construction (SSPWC) section 306-1.4. The water tight test methods include a post-
installation closed circuit television (CCTV) inspection and an air pressure test where the
sewer line must sustain 2.5 to 3.5 psi gage pressure for at least 2 minutes after being
pressurized to 3.0 psi.
2. All gravity sewer lines are required to follow engineering standard for the amount of flow
they can carry. During peak hour dry weather season the pipe shall be designed to
carry a flow depth of 0.5 (or 0.75 depending on the pipe size) the diameter of the pipe
(Volume 1, Chapter 6, Item 4.C). This design requirement prevents the pipe from
becoming full, which would pressurize the pipe and potentially cause a leak.
3. Per Carlsbad’s Engineering Standard GS-6 and GS-6A, the sewer lines are typically
located at an elevation deeper than the storm drain line, which further prevents sewage
intrusion into MS4. In the event of a sewage pipe leak, the leakage flow will naturally
gravitate below the sewer line rather than up to the storm drain line.
4. The standard horizontal separation between sewer and storm drain is 13 feet, which
further prevents sewage intrusion into MS4.
5. In special cases where storm drain lines are installed at a depth greater than that of
sewer lines, additional design standards are required such as water tight joints or
encasements (Volume 1, Chapter 5, Item 1.G).
Preventative maintenance of the sanitary sewer system, as described above is also effective at
preventing infiltration from sanitary sewer lines into the MS4. Continued preventative
maintenance prevents exfiltration of sewer water from the pipelines by ensuring that flow is
maintained in the system and pressure does not build up causing water to leave the system.
In the storm drain system, ammonia test kits are utilized as part of the dry weather program,
primarily to test for the presence of sewage. These tests are taken once per year at various
points strategically placed throughout the MS4 to provide adequate coverage. Exceedances for
ammonia may trigger source investigations, which may detect infiltration from sewer lines if
present.
7.4 Urban Runoff Monitoring
Dry Weather Monitoring
During this reporting period, the City continued investigations related to the Dry Weather
Monitoring Program that was implemented between May 1 and September 30, 2007. As in
years past this program included monitoring at 60 MS4 locations throughout the City.
Several of the findings in the 2007 Dry Weather Program prompted further investigations
upstream. As reported previously, several investigations resulted in extensive outreach
campaigns in response to water quality exceedances, especially in residential areas, where
Section 7 - IDDE ORDER 2001-01
Final JULY 1, 2007 – MARCH 23, 2008
City of Carlsbad JURMP Annual Report Page 7-8
specific sources of pollutants were not able to be identified. The City distributed educational
information to over 800 residents, focusing mainly on over irrigation, lawn care and landscaping,
and pet waste.
Additionally, three sites were recommended for further inspection where low pH was detected.
The low pH was suspected to be caused by groundwater intrusion into the MS4. Using closed
circuit television (CCTV) camera equipment, the City inspected the portions of the MS4 where
the pH was low. In two cases, groundwater intrusion was evident through seams in the pipe
and no illicit connections were identified. In the third case, a connection to the MS4 was located
that appears to convey groundwater from a sub-drain system. In all three cases, groundwater
was confirmed as the source of the low pH.
Results and investigations from the 2007 Dry Weather Monitoring Program were reported in the
City’s Dry Weather Monitoring Report for 2007 submitted with the City’s FY 06-07 JURMP
Annual Report in January 2008.
Coastal Storm Drain Monitoring
As required under the Permit, the City continued to monitor storm drains discharging to coastal
waters. In order to facilitate the transition from Order 2001-01 to Order 2007-0001, the
Copermittees requested permission from the Regional Board to implement the Coastal Storm
Drain Monitoring Program beginning with the new monitoring season, October 1, 2007. This
request was granted and the City began to implement the program according to the Order 2007-
0001 requirements at this time.
Table 7.2 summarizes the City Coastal Storm Drain Monitoring activities under each permit
during this reporting period.
Table 7.2 Coastal Storm Drain Monitoring Program Summary Statistics (July 1, 2007 – March 23, 2008)
Sites Monitored Frequency
Routine Samples
Collected
Sites with
Exceedances Findings
Ocean Lagoon Pairs Singles
Storm
Drain
Receiving
Water
Order 2001-01
6 16 Monthly 9 9 2 1
All confirmation
samples were within
established criteria.
No further action.
Order 2007-0001
8 0 Monthly 1 3 1 0
No flow was
observed at the sites
when staff returned to
collect confirmation
samples. No further
action.
Results of this reporting period show that the majority of sites do not have sufficient flow to
sample the majority of the time during dry weather. Over the course of this reporting period,
114 site visits were made and samples were collected on 22 of the visits, or only 19% of the
time. Of the 22 monitoring events where samples were collected, four of the initial samples had
exceedances of water quality criteria: three for exceeding 95th percentile criteria in the storm
drain and one for exceeding Rec-1 criteria in the receiving water. On follow-up visits, none of
Section 7 - IDDE ORDER 2001-01
Final JULY 1, 2007 – MARCH 23, 2008
City of Carlsbad JURMP Annual Report Page 7-9
the samples collected confirmed exceedances of water quality criteria. On one of the three
follow-up visits, there was no flow at the site.
All data collected and a full analysis of the Coastal Storm Drain Monitoring Program will be
submitted in the San Diego County Storm Water Monitoring Annual Report to be submitted in
January 2009.
7.5 Follow-up and Enforcement
The IDDE process is an ongoing endeavor, involving a combination of education, inspections,
complaint response, and enforcement. The City used one or any combination of these efforts
as necessary to achieve compliance. The ultimate goal is to eliminate the discharge or
connection and to prevent future occurrences.
During this reporting period, the Storm Water Protection Program received 161 complaints of
potential illegal discharges. As illustrated in Figure 7.3, 64% of the complaints involved alleged
washing or dumping to the storm drain, totaling 104 of the 161 complaints. These types of
complaints are representative of illegal discharges reported to the program. All reports were
investigated, however not all reports of washing or dumping to the storm drain were illegal
discharges. Of the 104 reports of washing or dumping to the storm drain, 69 were found to be
valid complaints, 11 were not illicit discharges, and 25 were not found upon investigation. Table
7.3 provides a breakdown of illicit discharges and connections by residential, commercial,
industrial, and municipal land uses. There were no illicit connections identified. All illicit
discharges (69) that were identified were eliminated as required.
Table 7.3 Illicit Discharges and Connections
Land Use Number of Illicit Discharges Number of Illicit Connections
Residential 37 0
Commercial 18 0
Industrial 1 0
Mobile Washer 6 0
Municipal 5 0
Construction 2 0
All complaints were addressed according to the City’s Enforcement Procedures as described in
the JURMP, Section 2.4. In utilizing this escalating enforcement process, all illicit discharges
were eliminated. Table 7.4 summarizes the enforcement actions that were necessary to
eliminate the discharges described above. Enforcement actions specific to land uses (i.e.
residential, construction, industrial/commercial) are described in their respective sections of the
annual report.
Table 7.4 Enforcement Actions to Eliminate Illicit Discharges/Connections
Enforcement Action Number Percentage
No Issue/No Violation 22 21%
Verbal Warning 23 22%
Informational Letter 15 14%
Written Warning 4 4%
Notice of Violation 6 6%
Referred for Action 17 16%
Not Found 17 16%
104
Section 7 - IDDE ORDER 2001-01
Final JULY 1, 2007 – MARCH 23, 2008
City of Carlsbad JURMP Annual Report Page 7-10
The City conducted four high level illicit discharge investigations during this reporting period.
High level illicit discharge investigations include those that involve hazardous and/or toxic
substances and those investigations resulting from complaints to or from the Regional Board.
Each of these high level complaints is described below.
West Buffet (RFAA-753MT9)
On July 13, 2007 the City’s storm water staff was notified of grease observed at a storm drain
outfall near Buena Vista Creek. The observation was a result of the City’s Dry Weather
Monitoring Program. Initially the source was not identified and the City hired a contractor to
clean the storm drain and area adjacent to the outfall. Further upstream investigation led City
inspectors to a nearby restaurant, West Buffet. It appeared that they had washed grease and
other materials to the storm drain in the back of their building. They were instructed to stop the
activity immediately and agreed to have the storm drain system cleaned from their restaurant to
the outfall. The MS4 was hydro-jetted from the source to the discharge. The City oversaw both
cleanup efforts to ensure that no further discharges occurred. A Notice of Violation was issued
to West Buffet and the City charged the business for time and money spent on the cleanup of
the discharge. West Buffet responded in writing that they would implement BMPs to prevent
any further discharges to the MS4. A subsequent storm water inspection was performed on
January 23, 2008 and no violations were observed. The incident was reported to the Regional
Board verbally within 24 hours and followed up in writing within five business days.
La Costa Foam Incident (RFAA-7DTKV5)
During a rain event on November 30, 2007 the City responded to a report of foam entering the
storm drain. An investigation was initiated by City staff and it appeared that the foam originated
from property owned by SDG&E. SDG&E was contacted and responded to the incident with
equipment to contain the remainder of the foam and to recover as much as possible. Because
the discharge was observed in the storm drain and in Batiquitos Lagoon, the RWQCB was
notified. SDG&E cleaned the foam and drainage path from its source. The source of the foam
was not definitively identified. The incident was reported the Regional Board verbally within 24
hours and followed up in writing within five business days.
Sediment Discharge Carlsbad High School (RFAA-7BERTK)
In February the City of Carlsbad Storm Water Department received a complaint from nearby
residents regarding sediment leaving the property of Carlsbad High School. Sediment had been
discharged onto the City streets and into the storm drain system. City Staff worked with the
Carlsbad Unified School District and the RWQCB to address a short term solution to the erosion
issue. The School District cleaned up all sediment from the streets and implemented
appropriate BMPs to retain sediment on-site. City crews cleaned the sediment from the storm
drain system. Currently under construction, the District will address the long term erosion
concerns with the new construction.
Quality Inn and Suites (RFAA-7BRN4W)
On February 13, 2008, the City responded to a report of a mobile washing operation in the
parking lot of the Quality Inn and Suites. Semi-trucks were being washed on-site and excess
wash water was flowing into the storm drain system. Workers stopped all washing and were
required to build containment around the wash area and direct all water to the landscape prior to
Section 7 - IDDE ORDER 2001-01
Final JULY 1, 2007 – MARCH 23, 2008
City of Carlsbad JURMP Annual Report Page 7-11
resuming the activity. A follow up inspection was performed to verify compliance and a Notice
of Violation was issued to the Quality Inn and Suites for violations of Carlsbad Municipal Code
15.12.050 and 15.12.080.
A complete summary of all Storm Water Protection Program investigations and responses is
found in Appendix 7.4.
Order 2001-01 City of Carlsbad
Sanitary Sewer Overflows
July 1, 2007 - March 23, 2008
Appendix 7.1
Date Source Substance Volume Enter
MS4?
Enter
RW?
Response
03/22/2008 Private
Interceptor
FOG 600 Yes Yes Costco notified to clear and clean interceptor and
lateral, and to clean storm darins affected.
03/04/2008 Private
Lateral
Sewage 10 No No Replaced C/O cap, had resident cal plumber.
03/03/2008 Private
Lateral
Sewage 75 No No Illegal storm drain to sewer connection to be
disconnected. Call plumber for stoppage.
03/01/2008 Private
Lateral
Sewage 25 No No Debris in lateral.
01/31/2008 Private
Lateral
Sewage 30 No No Plumber cleared grease blockage.
01/17/2008 Private
Lateral
Sewage 45 No No Plumber cleared grease blockage.
12-31-07* Sewer MH Sewage 350 No Yes Clear root stoppage, TV to ID cause.
12/23/2007 Private
Lateral
Sewage 5 No No Plumber cleared root blockage.
12/21/2007 Private
Lateral
Sewage 20 No No Plumber cleared blockage.
11-13-07* Sewer Main
C/O
Sewage 60 No No Clear stoppage, capture all spill.
11-04-07* Sewer MH Sewage 2000 No No Contained, cleared grease blockage, and
captured all.
10-28-07* Sewer MH Sewage 3625 No No Vandalism, construction debris,
10/17/2007 Private
Lateral
Sewage 40 No No Plumber cleared tampons and sanitary napkins
in cleanout.
10/11/2007 Private
Lateral
Sewage 40 Yes Yes Plumber cleared root blockage.
09/10/2007 Private
Lateral
Sewage 30 No No Plumber cleared lateral stoppage.
09/07/2007 Private
Lateral
Sewage 15 Yes Yes Root blockage.
09-04-07* Sewer MH Sewage 1 No No Clear root stoppage.
*These spills were from the City of Carlsbad maintained sewer main.
FY 07-08Sanitary Sewer OverflowsLeucadia Wastewater DistrictAppendix 7.2Date AddressVolume (gallons)Recovered (gallons) lat - deg.min.sec long - deg.min.sec CIWQS #08/31/07 Private Cleanout, 2534 Luceirnaga, Carlsbad, CA 20 0 33.06.11N 117.15.25W 65675110/24/07 Private Cleanout, 7306 Alicante, Carlsbad, CA 10 0 33.05.41N 117.15.32W 70644011/26/07 Private Cleanout, 2824 Cacatua St, Carlsbad, CA 10 0 33.06.37N 117.14.36W 70812111/9/2007 LWD Manhole, N. Estrella Del Mar Rd, Carlsbad, CA 300 250 36.06.12N 117.15.47W 707537
City of Carlsbad JURMP Annual Report FY 07-08Appendix 7.3Other Spills July 1, 07 to March 23, 08Event TypeCauseVolume (Gal) SpilledVolume (Gal) RecoveredIncident Date Street NumberStreet Responsible Party Zip CodeWater Body ImpactWater Body413Vehicle Leak¼ ¼ Diesel 8/7/07 3780Pio Pico Dr.Unknown92008None None413Traffic Accident1 Diesel 1 Oil 1 Diesel 1 Oil 10/29/07 1221Las Flores Zach Edwards Meas AZ 8520592008None None413Mechanical ProblemUnknown Hydraulic FluidUnknown 11/1/07 7044Ivy St Coast Waste Management92011None None413Vehicle Leak1 Motor Oil 1 Motor Oil 11/3/07 3401Monroe St Unknown92008None None413Fuel Pump Hose20 Diesel Unknown 11/10/07 7170Avenda Encinas Chevron Gas Station (same address)92011None None413Vehicle Leak1 Gasoline 1 Gasoline 11/19/07 2858Loker Ave East. Unknown92010NA NA413Vehicle Leak1 Motor Oil 1 Motor Oil 12/17/07 3748Jefferson St Unknown92008None None413Leak from Drum20-30 Gallons Oil Unknown 12/18/07 UnknownLa Costa / Paseo TamarindoUnknown92009NA NA413Vehicle LeakUnknownUnknown2/5/08 1700Olivenhain Rd Unknown92009None None
Section 7 IDDE ORDER 2007-0001
Final MARCH 24, 2008 – JUNE 30, 2008
City of Carlsbad JURMP Annual Report Page 7-1
7.0 ILLICIT DISCHARGE DETECTION AND ELIMINATION COMPONENT
Under Order 2007-0001, the City continued to conduct a proactive program for detecting and
eliminating illegal discharges and illicit connections to the storm drain system. The City’s
program actively seeks to identify and eliminate illicit discharges and connections by conducting
illegal discharge investigations, responding to spills and sewage overflows, conducting
monitoring, and performing routine cleaning and maintenance activities on the sewer and storm
drain systems. Several notable activities occurred between March 24 and June 30, 2008 and
are described below.
• Continued operation of a stormwater hotline and complaint response with a summary in
Section 7.2.
• Continued 24 hour spill response for wastewater and storm drain emergencies
• Updated the Dry Weather Program sites
• Conducted the Dry Weather Program from May 1 – September 30, 2008
7.1 Introduction
The Illicit Discharge Detection & Elimination (IDD&E) Program for the City encompasses
sources of solids and liquids containing pollutants and sanitary sewer system wastewater that
may enter the municipal separate storm sewer system (MS4). The Program focuses on
prevention while actively pursuing, investigating, and eliminating illicit discharges. The City
facilitates public reporting of illicit discharges and connections as described in Section 7.2.
Continued efforts are in place to facilitate reporting of spills, immediate response to spills, and
continued education to prevent spills, described in Section 7.3. In addition to complaint and spill
response, the City continues to perform monitoring in support of the IDDE program, described in
Section 7.4. Routine follow-up investigations and associated enforcement actions are described
in Section 7.5. The City strongly encourages voluntary elimination and cleanup of illicit
discharges, however, enforcement is escalated to obtain compliance when necessary.
7.2 Public Reporting of Illicit Discharges and Connections
As required under Order 2007-0001, the City continues to publicize and facilitate public
reporting of illicit discharges and water quality impacts. Methods to publicize and facilitate
public reporting include:
• Brochures and Publications
• Outreach events
• The City’s Website
• Internal training
• Operation of a Storm Water Hotline
• Operation of an Environmental Programs Hotline
All outreach methods utilized are described in detail in Sections 8.0 and 9.0, the Education and
Public Participation Sections of the City’s FY 07-08 Annual Report, submitted on September 30,
2008 to the RWQCB.
During regular office hours, 8 am to 5 pm, Monday through Friday, Storm Water Protection
Program staff answered the storm water hotline, checked emails to the storm water account,
and forwarded reported information to the appropriate personnel. When calls were received
Section 7 IDDE ORDER 2007-0001
Final MARCH 24, 2008 – JUNE 30, 2008
City of Carlsbad JURMP Annual Report Page 7-2
after office hours, the hotline provided a voice mail message (in English and Spanish) directing
complainants to leave a message for follow-up or be directed to an after hours number for
dumping of hazardous materials into the storm water system.
The public continued to use the storm water hotline and e-mail address to report illegal
discharges to the storm drain system. During this reporting period, the Storm Water Program
received 65 reports of potential illegal discharges to the MS4. Figure 7.1 illustrates the
breakdown of storm water complaints by the reporting mechanism.
Figure 7.1 Storm Water Complaints by Reporting Mechanism
March 24 - June 30, 2008 (Order 2007-0001)
Field
11%
Phone
26%
Storm Water Email
11%
Storm Water Hotline
52%
Other calls ranged from information requests, to solid waste inquiries, to other City business.
During the time period from March 24 through June 30, 2008 the storm water program
researched software available to track the number of calls to the storm water hotline. New
methods to track calls were implemented July 1, 2008 and will be reported on in the Annual
Report for Fiscal Year 2008-09. There were 65 storm water related complaints received, 35 of
which were via the hotline.
Sources of illegal discharge reports to the City included approximately 36% from the public,
59% from City employees, and 5% from outside agencies. Figure 7.2 illustrates the breakdown
of reporting parties for the storm water complaints received during this reporting period.
Section 7 IDDE ORDER 2007-0001
Final MARCH 24, 2008 – JUNE 30, 2008
City of Carlsbad JURMP Annual Report Page 7-3
Figure 7.2 Storm Water Complaints by Reporting Party
March 24 - June 30, 2008 (2007-0001)
City Staff
32%
Outside Agency
5%
Public
36%
SW Inspector
27%
Of the 65 storm water related complaints received during the period from March 24 to June 30,
2008, most were related to washing or dumping to the storm drain. Figure 7.3 illustrates the
types of storm water related complaints received during this period.
Figure 7.3 Storm Water Complaints
March 24-June 30, 2008 (Order 2007-0001)
Storm Drain-Dumping to Storm
Drain
36%
Storm Drain-Erosion from
Existing Development
3%Storm Drain-Vehicles Leaking
Oil/Fluids
14 %
Storm Drain-Washing to Storm
Drain
34%
Storm Water-General
Information/Questions
5%
Water Conservation-Private
Property
6%Water Conservation-Water
Audits
2%
As compared to previous reporting periods, call volume appears to be increasing marginally.
For this report period, March to June, there were 65 calls. In FY 07-08, the total number of
storm water related calls were 226 compared to 154 in FY 06-07.
Section 7 IDDE ORDER 2007-0001
Final MARCH 24, 2008 – JUNE 30, 2008
City of Carlsbad JURMP Annual Report Page 7-4
7.3 Spill Reporting, Response, and Prevention
Spill Response
City employees are trained to follow the City’s Sewer Overflow Prevention Plan/Response Plan.
Staff training was conducted semi-annually, either by tailgate or all-hands class format. All spill
response incidents were tracked in the Hansen system or spill reports. Sanitary sewage
overflow responses were documented as required on the Sanitary Sewer Overflow Report
Form, which was sent via fax to the Regional Board, County Health Department, and the Storm
Water Protection Program. During this reporting period of March 24 to June 30, 2008, the City
responded to 2 sewage overflows or spills of approximately 1,145 gallons. Of the estimated
1,145 gallons spilled, all was recovered plus approximately 10,020 gallons of wash down water.
The overflow reports are found in Appendix 7.1.
The City Public Works Maintenance and Operations Division (M&O) continued to respond and
coordinate sewage spill response with the Leucadia Waste Water District (LWWD) and
Vallecitos Water District (VWD) for spills that occurred outside the M&O jurisdiction. During
normal business hours, calls were dispatched by M&O to field units for immediate response and
evaluation. After working hours, phone numbers were routed through police dispatch to M&O
standby personnel.
A portion of the LWWD collection system is located within the City limits. LWWD is responsible
for operating and maintaining their system, including responding to overflows and spills.
However, M&O responds or provides assistance when requested. During this reporting period,
LWWD responded to zero sewage overflows in Carlsbad.
A portion of the VWD sewage collection system is also located within the City limits. VWD is
responsible for operating and maintaining their system, including responding to overflows and
spills. However, M&O responds or provides assistance when requested. During this reporting
period, Vallecitos Water District reported zero sewage overflows in the City of Carlsbad.
The City continued to actively prevent and respond to sewage spills and other spills, and to limit
discharges from the sanitary sewer system to the MS4. This occurred through public education
and outreach, inspections, preventive maintenance, complaint response, and spill response
(containment and remediation). The City operated 283.5 miles of sewer mains, and City staff
maintained 253 miles of 12” and under sewer mains. Large sewer trunk mains are maintained
by both City staff and contract work. City staff maintained 14 sewer pump stations.
The City also added an additional Smart Cover to the existing nine, for a total of ten, to monitor
flow levels in problem sewer manholes. Smart Cover alarms saved the City from one spill
during this reporting period. The City entered into a joint project with Encina Wastewater
Authority and installed new ADS Intelliserve flow monitoring systems to monitor sanitation flow
rates 24 hours a day at selected areas.
Section 7 IDDE ORDER 2007-0001
Final MARCH 24, 2008 – JUNE 30, 2008
City of Carlsbad JURMP Annual Report Page 7-5
Table 7.1 contains a summary of information associated with miles of sewer mains and spills.
1 Includes all spills caused by a failure in the sewer system (excludes recycled water spills
and/or spills from sewer laterals).
The following inspection and preventive maintenance activities were conducted during this
reporting period.
Inspection
From Monday through Friday, all 14 sewer pump stations were inspected daily. The ten largest
pump stations were also inspected on Saturdays and Sundays. The operator inspected the
electrical systems quarterly and the pumps and shafts were serviced annually. In addition,
outside services were contracted to inspect the electrical services annually. The wet wells were
cleaned every six weeks or more frequently if necessary.
Eleven pump stations are equipped with telemetry which was inspected daily. This included
checking the 24-hour history records, pump gallons per minute, wet well on-off cycles and pump
alternating cycles. The City conducted most pump repair work; although any needed machine
work was performed by outside services. In the case of emergencies, the City has a 24-hour
duty person, and cell phones were issued to each member of the Wastewater Operations staff,
and Supervisor. In the case of power failures, ten of the stations have onsite generators and
three stations can be powered by the City’s two trailer mounted generators. The remaining
station has 24 hours of storage capacity and can be maintained by a vacuum or pumper truck.
Education
Educating the public on the proper disposal of fats, oils and grease is one of the BMPs used to
prevent sewage spills. The City continued to distribute the Water Environment Federation
brochure entitled “Fat-Free Sewers.” These brochures were distributed at various public events
and during field visits. The City held two Fats, Oils, and Grease (FOG) workshops during this
reporting period.
Preventive Maintenance
During this reporting period, the City performed routine preventative maintenance and
inspections of the sanitary sewer system, which included video inspections, 610 manhole
inspections, semi-annual inspections of three major trunk lines, and routine cleaning of sewer
mains. Regular monitoring of the sewer system was achieved with routine cleaning and
manhole inspections. Sewer system surveillance was conducted on a regular basis. Flow
monitoring was performed to compare the flows in dry and wet seasons. Anything unusual was
reported and followed up on.
Approximately 40.74 miles of sewer lines were cleaned from March 23 – June 30, 2008. The
maintenance schedule is designed to provide more frequent cleaning for identified trouble
areas, with siphons being cleaned annually, low flow and flat lines cleaned semi-annually, and
grease problem areas cleaned quarterly. City staff also performs Monday through Friday
checks of the Buena Vista Force Main, walking the line from the lift station to I-5.
Table 7.1 Summary
Time Period
Number of
Reportable Spills1
Reportable
Gallons Spilled
Total Miles of
Sewer Mains
March 24 - June 30, 2008 2 1145 283.5
Section 7 IDDE ORDER 2007-0001
Final MARCH 24, 2008 – JUNE 30, 2008
City of Carlsbad JURMP Annual Report Page 7-6
Complaint Response
The Storm Water Protection Program occasionally depends on other City departments to assist
with investigations and remediation during field reviews. M&O and the Storm Drain
Maintenance Division were key to prompt, effective responses to investigations involving spills
and clean ups. Regular meetings and discussions about compliance issues facilitated this
interdepartmental coordination effort.
M&O personnel responded to 36 sewer stoppage complaints during this reporting period.
These requests and the City’s response were tracked electronically in the Accela, Hansen
systems, and the CIWQS website.
Other Spills
The City’s Emergency Services (Fire/Police Departments) continued to respond to reports of
hazardous materials spills and discharges in Carlsbad. Fire Department personnel were trained
in hazardous material emergency response and identification of hazardous materials and other
City departments relied on the Fire Department to assume command during hazardous
materials incidents. Emergency services may request assistance from the Streets Department
or Storm Drain Maintenance Division (SDMD) to contain discharges that have the potential to
endanger life, property, and/or the City right-of-way, control traffic, and provide secondary
perimeter boundaries as directed Emergency Services’ staff.
During this reporting period, the City’s Spill Response Procedures continued to be used to detail
the roles and responsibilities of Emergency Services, Streets Department, M&O, and the Storm
Water Protection Program. If Emergency Services was first on the scene of an unidentified spill,
and the Incident Commander suspected the substance to be of a hazardous nature, emergency
response procedures were implemented. Incident Commanders retained a copy of the
Department of Transportations “Emergency Response Guidebook” which lists classifications of
hazardous materials and recommendations for handling materials.
The San Diego County DEH HIRT, through a Joint Powers Agreement, was involved in any
significant spills of a hazardous nature. The County maintains these records, as does the State
OES. Minor petroleum or other small spills on City streets were handled by the Streets
Department or SDMD using absorbents, sweeping, and proper waste disposal. These cleanup
requests were documented in the City’s RFA or work order systems. During this reporting
period, there were nine other spills (non-sewage related) in Carlsbad as reference in Appendix
7.2.
PREVENTION MEASURES OF SEWAGE INTRUSION INTO MS4
The City of Carlsbad’s Engineering Standards have several measures to prevent sewage
intrusion into municipal separate storm sewer systems (MS4).
1. All gravity sewer pipes and laterals are required to have gasketed joints, which create
water tight joints (Volume 1, Chapter 6, Item 3.A, 3.C, and 3.F). The water tight joints
are tested using the methods indicated in Standard Specifications for Public Works
Construction (SSPWC) section 306-1.4. The water tight test methods include a post-
installation closed circuit television (CCTV) inspection and an air pressure test where the
sewer line must sustain 2.5 to 3.5 psi gage pressure for at least 2 minutes after being
pressurized to 3.0 psi.
Section 7 IDDE ORDER 2007-0001
Final MARCH 24, 2008 – JUNE 30, 2008
City of Carlsbad JURMP Annual Report Page 7-7
2. All gravity sewer lines are required to follow engineering standard for the amount of flow
they can carry. During peak hour dry weather season the pipe shall be designed to
carry a flow depth of 0.5 (or 0.75 depending on the pipe size) the diameter of the pipe
(Volume 1, Chapter 6, Item 4.C). This design requirement prevents the pipe from
becoming full, which would pressurize the pipe and potentially cause a leak.
3. Per Carlsbad’s Engineering Standard GS-6 and GS-6A, the sewer lines are typically
located at an elevation deeper than the storm drain line, which further prevents sewage
intrusion into MS4. In the event of a sewage pipe leak, the leakage flow will naturally
gravitate below the sewer line rather than up to the storm drain line.
4. The standard horizontal separation between sewer and storm drain is 13 feet, which
further prevents sewage intrusion into MS4.
5. In special cases where storm drain lines are installed at a depth greater than that of
sewer lines, additional design standards are required such as water tight joints or
encasements (Volume 1, Chapter 5, Item 1.G).
Preventative maintenance of the sanitary sewer system, as described above is also effective at
preventing infiltration from sanitary sewer lines into the MS4. Continued preventative
maintenance prevents exfiltration of sewer water from the pipelines by ensuring that flow is
maintained in the system and pressure does not build up causing water to leave the system.
In the storm drain system, ammonia test kits are utilized as part of the dry weather program,
primarily to test for the presence of sewage. These tests are taken once per year at various
points strategically placed throughout the MS4 to provide adequate coverage. Exceedances for
ammonia may trigger source investigations, which may detect infiltration from sewer lines if
present.
7.4 Urban Runoff Monitoring
Dry Weather Monitoring
The Dry Weather Monitoring Program was implemented between May 1 and September 30,
2008. The program was designed to detect and eliminate illicit connections and illegal
discharges to the MS4. This was accomplished by performing field observations and field
screening at all monitoring locations and performing analytical monitoring at 25% of the
locations. As in years past this program included monitoring at 60 MS4 locations throughout the
City. New in 2008, the program included an assessment for trash at each location, as required
per Order 2007-0001. The dry weather sites were re-assessed as part of the JURMP
preparation process and have changed slightly.
All results and investigations are included under separate cover in the City’s Dry Weather
Monitoring Report for 2008. This report includes the Dry Weather Field Screening and
Analytical Monitoring Map.
In general, exceedances for field screening and analytical parameters decreased in the 2008
monitoring season as compared to previous years. Water quality at most sites had no
exceedances. The most common field constituent to exceed action levels were nitrate-nitrogen.
The most common analytical constituents to exceed action levels were bacteria. All follow up
activities were performed as required under Order 2007-0001. Follow-up activities performed
Section 7 IDDE ORDER 2007-0001
Final MARCH 24, 2008 – JUNE 30, 2008
City of Carlsbad JURMP Annual Report Page 7-8
immediately after the initial sampling efforts are described in the Dry Weather Report under
separate cover. Follow-up activities performed by the City are described in Appendix 7.4.
Required follow up actions were taken for all sites where water quality exceeded established
action levels as described in the permit.
MS4 Outfall Monitoring
The MS4 Outfall Monitoring Program is part of the Regional Monitoring required in Order 2007-
0001. This program has been developed by the Regional Copermittees and was implemented
within the region during FY 07-08 as required. Sites were monitored in all watersheds
throughout the County. Monitoring results will be summarized in the County of San Diego
Storm Water Monitoring Annual Report, to be submitted in January 2009.
The objective of this monitoring program is to assess MS4 discharge water quality throughout
the county and assess the relative contributions to receiving waters within each defined
watershed management area.
The monitoring design is based on a combination of random and targeted sampling of MS4
outfalls in each watershed. Random sampling will be conducted to assess countywide
conditions of MS4 outfall water quality. Targeted sampling will be conducted to assess the
relative contribution of particular MS4 outfalls to receiving waters.
A detailed description of the program was submitted to the Regional Board prior to July 1, 2008
as required by the Order. The description includes monitoring locations, frequencies, analytes,
sampling and analysis methods, procedures, and reporting strategies.
Random samples were collected throughout the watershed management areas by the Regional
Monitoring contractor. These samples were collected during FY 07-08, as prescribed in the
permit.
Targeted samples will be collected during FY 08-09 and during subsequent years by the
individual jurisdictions, independent of the regional group. The targeted approach includes six
locations within the City of Carlsbad. These locations were selected based on criteria
developed in the Regional Monitoring Workgroup. Table 7.2 lists the targeted locations,
hydrologic area, and analytes to be monitored for the program.
Table 7.2 Targeted monitoring locations.
Site ID
Hydrologic
Area Analytes
1D-21 904.2 Bacteria, TSS, Total Nitrogen-N, Total Phosphate-P
1D-20 904.2 Bacteria, TSS, Total Nitrogen-N, Total Phosphate-P
1C-21 904.2 Bacteria, TSS, Total Nitrogen-N, Total Phosphate-P
16C-61 904.3 Bacteria, TSS
21C-14 904.3 Bacteria, TSS, Total Nitrogen-N, Total Phosphate-P
19C-1 904.3 Bacteria, TDS, TSS, Manganese, Selenium, Sulfates
Results will be summarized in the Regional Monitoring Report submitted by the County of San
Diego each year.
Section 7 IDDE ORDER 2007-0001
Final MARCH 24, 2008 – JUNE 30, 2008
City of Carlsbad JURMP Annual Report Page 7-9
Coastal Storm Drain Monitoring
As required under the Permit, the City continued to monitor storm drains discharging to coastal
waters. In order to facilitate the transition from Order 2001-01 to Order 2007-0001, the
Copermittees requested permission from the Regional Board to implement the Coastal Storm
Drain Monitoring Program beginning with the new monitoring season, October 1, 2007. This
request was granted and the City began to implement the program according to the Order 2007-
0001 requirements at that time.
Table 7.3 summarizes the City Coastal Storm Drain Monitoring activities during this reporting
period, March 24 – June 30, 2008.
Table 7.3 Coastal Storm Drain Monitoring
Sites Monitored
Routine Samples
Collected
Sites with
Exceedances Findings
Ocean Lagoon Frequency
Total Site
Visits Pairs Singles
Storm
Drain
Receiving
Water
8 0 Monthly 24 0 4 1 0
No flow was observed at
the site when staff returned
to collect confirmation
samples. No further action.
Results of this year of monitoring show that the majority of sites do not have sufficient flow to
sample the majority of the time during dry weather. Over the course of this reporting period, 24
routine site visits were made and samples were collected on four of the visits, or only 17% of the
time. Upstream investigations are performed at the time of sampling. During these four site
visits, the storm drain flow did not reach the receiving water, therefore samples were only
collected from the storm drain. Of the four monitoring events where samples were collected,
one of the initial samples had exceedances of water quality criteria in the storm drain sample.
On the follow-up visit there was no flow at the site.
All data collected and a full analysis of the Coastal Storm Drain Monitoring Program will be
submitted in the San Diego County Storm Water Quality Monitoring Annual Report to be
submitted in January 2009.
7.5 Follow-up and Enforcement
The IDDE process is an ongoing endeavor, involving a combination of education, inspections,
complaint response, and enforcement. The City used one or any combination of these efforts
as necessary to achieve compliance. The ultimate goal is to eliminate the discharge or
connection and to prevent future occurrences.
During this reporting period, the Storm Water Protection Program received 65 complaints of
potential illegal discharges. As illustrated in Figure 7.4, 70% of the complaints involved alleged
washing or dumping to the storm drain, totaling 46 of the 65 complaints. These types of
complaints are representative of illegal discharges reported to the program. All reports were
investigated, however not all reports of washing or dumping to the storm drain were illegal
discharges. Of the 65 reports of washing or dumping to the storm drain, 33 were found to be
valid complaints, 9 were not illicit discharges, and 4 were not found upon investigation. Table
7.4 provides a breakdown of illicit discharges and connections by residential, commercial,
industrial, and municipal land uses. All illicit discharges (33) that were identified were eliminated
as required. There were no illicit connections identified during this reporting period.
Section 7 IDDE ORDER 2007-0001
Final MARCH 24, 2008 – JUNE 30, 2008
City of Carlsbad JURMP Annual Report Page 7-10
Table 7.4 Illicit Discharges and Connections
Land Use Number of Illicit Discharges Number of Illicit Connections
Commercial 9 0
Industrial 1 0
Municipal 1 0
Mobile Washer 3 0
Residential 19 0
Total 33 0
All complaints were addressed according to the City’s Enforcement Procedures as described in
the 2008 JURMP, Section 2.4. In utilizing this escalating enforcement process, all illicit
discharges were eliminated. Table 7.5 summarizes the enforcement actions that were
necessary to eliminate the discharges described above.
Table 7.5 Enforcement Actions Related
to Illicit Discharges
Enforcement Action Number Percentage
Verbal Warning 6 13%
Informational Letter 14 30%
Written Warning 1 2%
Notice of Violation 4 9%
Total 25
The City conducted two high level illicit discharge investigations during this reporting period.
High level illicit discharge investigations include those that involve hazardous and/or toxic
substances and those investigations resulting from complaints to or from the Regional Board.
Each of these high level complaints is described below.
Agua Hedionda Lagoon Middle Basin Oil Discharge (RFAA-7DAMC6)
On March 31, 2008 Storm Water staff received a call from a City employee stating there was an
oily substance discharging from a storm drain into Agua Hedionda Lagoon. Upon receipt, Storm
Water staff, Carlsbad Fire Department and other city divisions responded immediately.
Carlsbad Fire Department and public works crews initiated containment measures, and Storm
Water staff, police units and other city employees canvassed the area looking for the source.
The California Office of Emergency Services was notified and San Diego County HIRT
responded. It was determined by San Diego County HIRT that the substance was most likely
motor oil. An environmental clean-up contractor was called in to conduct a thorough cleanup of
the immediate area around the outfall and the upstream storm drain system. It was estimated
that approximately five gallons of motor oil entered the lagoon. The incident was reported to
Regional Board staff within 24 hours verbally and followed up in writing within five business
days.
After a comprehensive search of the drainage area, City employees were unable to locate a
source. The following day an article describing the event ran in the newspaper. Upon reading
the article, a Carlsbad resident notified the Storm Water department of the suspected location
that the motor oil entered the storm drain. After confirming the location was in fact accurate,
Carlsbad Police initiated an investigation and were able to determine that the used motor oil
Section 7 IDDE ORDER 2007-0001
Final MARCH 24, 2008 – JUNE 30, 2008
City of Carlsbad JURMP Annual Report Page 7-11
from a tractor trailer was emptied to the storm drain; however, they were unable to identify the
responsible party. Outreach materials were distributed and placed in nearby businesses and an
educational letter was sent to all residents in the surrounding neighborhood.
AT&T Vault Discharge (RFAA-7DRTJZ)
On April 16, 2008, City Storm Water Staff received a report of a large flow of discolored water
entering a storm drain in a local business park. Upon receipt, multiple departments including
Storm Water Protection and Storm Drain Maintenance responded. Upon arrival, the discharge
had ceased; a rust colored stain in the street and gutter line and rust colored water in Encinas
Creek were observed. The discharge originated from an AT&T underground utility vault.
Approximately 2800 gallons of discolored water were pumped from an underground utility vault
by HP Communications (a contractor for AT&T). AT&T was contacted and required to clean the
street and storm drain and was advised to contact appropriate agencies (RWQCB, CDFG,
USFWS, and City of Vista) concerning cleanup of material in the creek. The City oversaw the
cleanup of the street and storm drain and the other agencies were involved in the cleanup of the
impacted area of the creek.
The City of Carlsbad Storm Water Department issued a Notice of Violation to AT&T and HP
Communications, Inc. for four violations of the City of Carlsbad Municipal Code including:
prohibited discharges, a discharge in violation of a separate Permit, a failure to reduce
pollutants, and a failure to contain, cleanup, and notify the City of the discharge. Follow-up
inspections/investigations showed no further issues or action required.
A complete summary of the storm water related complaints is provided in Appendix 7.3.
7.6 Effectiveness Assessment
Level 1: Compliance with Activity Based Permit Requirements
Overall, the City is compliant with activity based permit requirements.
• The City implemented a program to actively seek and eliminate illicit discharges and
connections to the MS4: As described above in Sections 7.1-7.5.
• The City continued to verify the accuracy of its MS4 map and update it at least annually:
The accuracy of the City’s MS4 map is verified continually by field staff and updated with
new information or as existing information is updated. The most current MS4 map is
provided in Appendix 7.5.
• The City performed Dry Weather Screening and Analytical Monitoring:The City
conducted a Dry Weather Monitoring Program inclusive of 60 monitoring locations
throughout the drainage area in the City. The Dry Weather Report for 2008 is included
as under separate cover with this submission.
• Investigations and follow-up actions were performed in accordance with the Permit:
Indications of illicit discharges and/or connections to the MS4 were investigated and
followed up accordingly. Follow-up investigations to dry weather field screening
exceedances were usually performed immediately and always within two business days
Section 7 IDDE ORDER 2007-0001
Final MARCH 24, 2008 – JUNE 30, 2008
City of Carlsbad JURMP Annual Report Page 7-12
of the field screening. Any results of analytical parameters were investigated within two
business days of receipt of results from the laboratory.
• All illicit discharges and connections were investigated and eliminated: All reported illicit
discharges and connections were investigated and eliminated.
• The City implemented and enforced the City’s ordinances to prevent or eliminate illicit
discharges and connections to the MS4:The City implemented an escalating
enforcement process as described in its 2008 JURMP, Section 2. Enforcement actions
related to illicit discharges are described above in Table 7.5.
• The City prevented and responded to sewage spills, including from private laterals and
failing septic systems, and other spills:The City responded to all reported spills as
described above in Section 7.3.
• The City facilitated public reporting of illicit discharges and connections via a public
hotline:A storm water hotline was staffed year round. Complaints received via the storm
water hotline are summarized above in Section 7.2.
Overall, the City’s IDDE program is compliant with permit requirements.
Level 2: Changes in Knowledge/Awareness
Educational material is distributed in response to nearly all storm water related complaints,
whether to residents or businesses within the City. Additionally, educational information is
distributed to entire neighborhoods throughout the year, most often in response to complaints or
dry weather exceedances. Often, exceedances of nutrient action levels in residential areas will
trigger the need for larger scale distribution of outreach materials. These efforts are described
in Section 6 of the City’s JURMP Annual Report for FY 07-08, submitted in September 2008.
While the City does not currently measure the changes in knowledge, educational materials
provide a good source of information to citizens and businesses about the connection between
their activities and water quality.
Level 3: Behavioral Change/BMP Implementation
Behavioral changes and BMP implementation are continually obtained through the IDDE
program. Over the Fiscal Year 2007-08, 226 storm water related complaints were responded to
by City staff. Of these, approximately 150 pertained to illegal dumping or washing. In all cases,
the discharges were discontinued immediately. Some of the incidents were one time
occurrences, however, many were routine activities performed by the responsible parties. In
these cases, through education and enforcement actions, BMPs were implemented and
behavioral changes were evident. Follow-up inspections confirmed BMP implementation and
behavioral changes.
Level 4: Load Reductions
Load reductions are difficult to estimate in relation to the IDDE program. Estimates of sewage
recovered during spills can provide the number of gallons of raw sewage prevented from
entering the environment. If correlated with bacteria data, rough estimates of load reductions of
bacteria may be generated. Of an estimated 6831 gallons (5686 from July 1, 2007 to March 23,
Section 7 IDDE ORDER 2007-0001
Final MARCH 24, 2008 – JUNE 30, 2008
City of Carlsbad JURMP Annual Report Page 7-13
2008 and 1145 from March 24 to June 30, 2008) spilled during FY 07-08 due to municipal
infrastructure failure, 3206 gallons were recovered. If a conservative estimate of 1,000,000
cfu/100 ml of fecal coliform is used for raw sewage, a total of 121,360,300,000 colony forming
units of fecal coliform was prevented from entering the environment.
Level 5: Changes in Discharge Water Quality
Dry Weather Field Screening and Analytical Monitoring Program
The City has conducted an annual Dry Weather Field Screeing and Analytical Monitoring
Program since 1995. The purpose of the monitoring program is to detect and eliminate illicit
connections and illegal discharges to the storm drain system. The Dry Weather Monitoring
Program report for FY 07-08 and follow-up activities is provided under separate cover. The
following discussions summarize current and past dry weather results in order to assess
changes in MS4 water quality, through the 2008 dry weather season.
Fecal coliform concentrations are generally lower over the past five years than in 2003, while
enterococcus concentrations are slightly higher in recent years. In comparison to dry weather
action levels, fecal coliform and enterococcus mean values are well below the established
action levels across all years of data. With many variable factors unaccounted for, it is unclear if
the recent results are due to improvements and BMP implementation or to the variable nature of
bacteria concentrations.
The City has conducted field testing of detergents since 1995. Data appear to show a
downward trend in detergent levels found in the MS4 with results less than established action
levels for MBAS.
The average pH levels have also shown a downward trend since 1995, with results generally
below action levels. This may be a result of the decreased detergents in the MS4, which are
typically basic having pH values >7.
Ammonia and Nitrate concentrations have continued to show no significant increases from
previous years. With the exception of 2002, all recent years have averaged well below the
established action level for ammonia-nitrogen.
Lower in recent years, all ortho-phosphate averages are well below established dry weather
action levels.
Over the course of the past seven years of dry weather programs, water quality parameters
have been repeatedly analyzed at the same sites allowing for a comparison of data. In general,
water quality within the MS4 is good, with concentrations of bacteria, nutrients, pH, and
surfactants generally decreasing and below Action Levels. Efforts continue to focus on bacteria
concentrations in the MS4 and their sources. In the future, increased efforts to understand
bacteria concentrations and sources will be made through various TMDL activities. With an
enhanced understanding of bacteria, the City will be better prepared to address and abate
sources within the watershed.
Coastal Storm Drain Outfall Monitoring Program
The City continued to collect samples from various storm drain outfalls as part of the Coastal
Outfall Monitoring Program. If water was flowing from a storm drain outfall, samples were
collected and analyzed for total coliform, fecal coliform and enterococci. Storm drain sample
results were compared to the 95th percentile criteria established in the previous year’s annual
Section 7 IDDE ORDER 2007-0001
Final MARCH 24, 2008 – JUNE 30, 2008
City of Carlsbad JURMP Annual Report Page 7-14
report for the CSDM Program. Where required, a paired receiving water sample was collected
to assess the impacts of the storm drains on the receiving waters. However, the majority of the
time, storm drain flows, when present, did not reach the receiving water and only a single storm
drain sample was collected. The receiving water samples were compared to Rec-1 standards
to determine exceedances. Where storm drain bacteria concentrations exceeded 95th
percentile criteria or receiving water samples exceeded Rec-1 objectives, follow-up sampling
and/or investigations were performed.
Recent years indicate a decrease in storm drain exceedances for all three bacterial indicators,
showing improvements in outfall water quality. In all cases, the flow from outfalls was
intermittent and low volume. In most cases, the flow did not actually reach the receiving waters,
but dissipated into the sand or sediment. The City will continue to conduct the Coastal Outfall
Monitoring Program and to conduct follow-up investigations as detailed in the Monitoring Plan
per permit requirements.
Level 6: Changes in Receiving Water Quality
It is important to note that receiving water quality reflects considerably more than the quality of
the City’s MS4 discharges. In addition, receiving water quality can be adversely impacted by
other events that are not under the control of the City, such as other permitted NPDES
discharges, wildlife (impacting bacteria levels), atmospheric deposition, and other events and
activities.
Watershed Receiving Water Samples
This year the City continued to have four receiving water samples collected during the Dry
season in order to provide additional baseline data of surface water quality in conjunction with
Carlsbad Watershed numbers. These samples are collected at the same time as the Dry
Weather Program samples. This is the sixth year of data collected under the this program. The
program includes monitoring sites on Buena Vista Creek, Agua Hedionda Creek (at the Mass
Loading Station site), Encinas Creek, and San Marcos Creek. Each of these tributaries is
representative of the four separate Carlsbad sub-watersheds.
This special study was initiated in support of the Carlsbad Watershed Copermittees’ efforts to
learn more about the quality of receiving waters in the Carlsbad Hydrologic Unit. The high
priority pollutants in the Carlsbad Watershed are sediment, nutrients, and bacteria. Data
collected in this study is insufficient in quality to provide information on nutrients due to the
methodology used in analyzing nutrient concentrations. The prioritization of sediment as a high
priority pollutant does not appear to be supported by data collected in this study. This is likely
because all samples were collected during dry weather and sediment is potentially more
prevalent during wet weather.
Bacteria is also listed as a high priority pollutant in the Carlsbad Watershed and data has been
shown to exceed REC-1 water quality objectives during wet and dry weather. This special study
appears to support the Watershed’s prioritization of bacteria during dry weather.
Overall, water quality in these creeks appears to be within both Basin Plan water quality
objectives and dry weather action levels for the constituents monitored in this special study.
These data support the findings of previous monitoring in the Carlsbad Watershed indicating
that bacterial indicators are a constituent of concern in the Carlsbad Hydrologic Unit. Other
Section 7 IDDE ORDER 2007-0001
Final MARCH 24, 2008 – JUNE 30, 2008
City of Carlsbad JURMP Annual Report Page 7-15
water chemistry constituents in the creeks appear to be within standards. Because this is a
limited set of data, the watershed is in need of additional data to validate these findings. With
the onset of the requirements of Order 2007-0001, Temporary Watershed Assessment Stations
were located on Buena Vista Creek and on Agua Hedionda Creek during FY 07-08, collecting
samples for analysis during wet and dry weather. These results were not available at the time
of this report, but will be available for inclusion in future years.
Coastal Outfall Monitoring Program – Receiving Waters
Of samples collected in the receiving waters during FY 07-08, there was only one exceedance
for enterococcus across all three indicators. This exceedance occurred in Agua Hedionda
Lagoon prior to the change in procedure to monitor only ocean sites. There were no
exceedances of the REC-1 standards in the Ocean for total coliform, fecal coliform or
enterococci during the last six reporting periods. A general decline in receiving water
exceedances in the lagoons is evident across all bacterial indicators, showing improvements in
water quality.
It should be noted that lagoon samples were only collected during July, August, and September
of 2007, as the Coastal Monitoring Program implemented permit requirements under Order
2007-0001 on October 1, 2007 monitoring only ocean outfalls. The City will continue to
implement this program and to conduct follow-up investigations in accordance with the Adaptive
Plan.
Overall, the City has remained in compliance with all permit requirements of the IDDE program.
With full program implementation, evidence of knowledge and behavior changes are evident,
although difficult to measure. Program implementation also results in immediate load
reductions, through complaint response efforts, whether related to urban runoff, sewer
overflows, or other spills. It is difficult to quantify these reductions at this time,however, the City
will continue to develop assessment measures related to load reductions. Changes in
discharge water quality are also evident, most often showing improvements during dry weather.
While not fully attributable solely to the IDDE program, implementation of the monitoring
programs provides useful data to make this assessment. As more data is collected in discharge
waters and in receiving waters, assessments will show a more accurate picture of the changes
in water quality and relationships to MS4 programs.
Order 2007-0001 City of Carlsbad
Sanitary Sewer Overflows
March 23 - June 30, 2008
Appendix 7.1
Date Source Substance Volume Enter
MS4?
Enter
RW?
Response
06/27/2008 Private
Lateral
Sewage 10 No No Root blockage.
06/19/08* Sewer
Lateral
C/O, main
stoppage
Sewage 20 No No Clear root stoppage, capture all
spill.
04/28/08* Sewer MH Sewage 1125 Yes No Captured at silt pond, used
bypass pump to sewer, flushed
storm system with 10,000 gals
fresh water.
04/14/2008 Private
Lateral
Sewage 800 No No Plumber cleared root blockage.
04/10/2008 Private
Lateral
Sewage 25 No No Plumber cleared root blockage.
*These spills were from the City of Carlsbad maintained sewer main.
City of Carlsbad JURMP Annual Report FY 07-08Appendix 7.2Other Spills March 24, 08 to June 30, 08Event TypeCauseVolume (Gal) SpilledVolume (Gal) RecoveredIncident Date Street NumberStreet Responsible Party Zip CodeWater Body ImpactWater Body413Unknown5 gallons Oil Unknown 3/31/08 UnknownChinquapin / Long PlUnknown92008Aqua HediondaAgua Hedionda413Fork Lift RolloverUnknown Oil / Fuel Unknown Oil / Fuel4/1/08 UnknownPalomar Airport Rd Unknown92008NA NA413Vehicle LeakUnknown OilUnknown Oil4/12/08NAI-5 Unknown92011None None413Vehicle Leak1 Oil 1 Oil 6/20/08 3521Charter Oak Unknown92009None None411Unknown2-3 Diesel 2 Diesel 10/3/07 UnknownAlga Rd / Corintia StUnknown92009None None411Vehicle Leak0.5 Gasoline None 12/1/07 UnknownAmbrosia / Aviara PkwyUnknown92011None None411Semi Truck leak25 Diesel 25 Diesel 1/15/08 5931Darwin Ct Pacifica Trucks – Wilmington CA92009None None411Tiki Torch0.25 Gallon Lamp OilNone 4/20/08 1604Sapphire Dr Unknown92011None None411Vehicle AccidentUnknown Unknown 5/5/08 UnknownPio Pico / Carlsbad Village DrUnknown92008None None
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2007-0001City of Carlsbad Dry Weather Program Appendix 7.4Site IDInitial Site Visit Initial FindingsDate Data ReceivedDate InvestigatedSampled by Confirmation/Findings Follow up Closing Notes19C-1 (AH-46)09/04/2008TC=78,000 FC=39,000 Ent = 31,00009/11/08 DmaxConfirmation sample collected on 09/11/08 (TC=46,000, FC=23,000, Ent=6,000). Results still high for Fecal Coliform.Resample on 09/18/08 (TC=36,000, FC=34,000, Ent=7,300). Fecal Coliform result still out of compliance. Sample was taken at next accessible manhole above this outfall (24A-3) with no exceedances (TC=4,600, FC=4,000, Ent=800).No exceedances were found in the discharge up the pipe from the outfall. There was an excessive amount of vegetation surrounding the outfall and several various animal droppings were found around the site. Suspected source of fecal coliform is wild animals in vicinity of outfall. Closed.48D-24 (BA-13)09/05/2008TC=52,000 FC=8,500 Ent=38,00009/11/08 DmaxConfirmation sample collected on 09/11/08 (TC=15,000, FC=12,000, Ent=2,000)09/11/08 resample results within limits for TC, FC and Entero.Exceedance not confirmed. Closed.45G-13 (BA-40)09/10/2008TC=23,000 FC=18,000 Ent=11,00009/18/08 DmaxConfirmation sample collected on 09/18/08 (TC=10,400, FC=10,200, Ent=4,600)09/18/08 resample results within limits for TC, FC and Entero.Exceedance not confirmed. Closed.42C-92 (BA-06)09/10/2008TC=56,000 FC= 37,600 Ent=9,00009/18/08 DmaxConfirmation sample collected on 09/18/08 (TC=63,000, FC=53,000, Ent=15,200) Results high for all parameters.10/15/08 Onsite investigation performed by PH, JW, and CD. 10/22-10/23/08 Contractor brought in to clean SD lines and boxes. Resample taken on 10/27/08 within limits for TC, FC and Entero.Samples taken following cleaning of SD lines and boxes were within limits for all paramaters. Closed.48D-24 09/05/2008 Sub-optimal DmaxTrash observed in vacant lot east of Dove Lane.Referral to Code Enforcement for clean-up of private property, 10/9/08.Referral to Code Enforcement for clean-up of private property, 10/9/08.37B-19 Marginal DmaxTrash observed (boxes and paper) between 2225 and 2265 Camino Vida Roble.Referred to Storm Drain Maintenance Division for clean-up of MS4, 10/9/08.Cleaned 10/10/08.58A-13 Sub-optimal 10/09/08 DmaxWhite powdery substance in front of 2012 and 2022 Ladera Court.Referral to Environmental Specialist for investigation, 10/9/08.See RFAA--7K9NT7. No powdery substance found on site at time of investigation. Street sweepers had cleaned the streets.1D-31 Sub-optimal DmaxTrash (food containers and aluminum cans) observed in vegetation on South Bank of Buena Vista Creek, ten yards west of El Camino Real.Referral to Storm Drain Maintenance Division for clean-up of trash on Creek bank, 10/9/08.Cleaned 10/10/08.1D-20 Sub-optimal DmaxTrash (soda cans, drink cups, plastic bags) observed on South side of Buena Vista Creek, 50 feet west of South Vista Way bridge.Referral to Storm Drain Maintenance Division for clean-up of trash on Creek bank, 10/9/08.Cleaned 10/10/08.2008 Dry Weather Exceedances and InvestigationsFollow-up Sampling and Investigations for Water Quality ExceedancesFollow-up Actions Related to Trash Observations during Monitoring
BATIQUITOS
LAGOON
AGUA
HEDIONDA
LAGOON
BUENA
VISTA
LAGOON
PACIFIC
OCEAN COLLEGE BLA
VIA
R
A
P
Y MELROSE DRTA M ARACK
AV
C A N N O N R D
ALGA RD
OLIVENHAIN RD
C A R LS B AD VILLA
GE DR
CARLSBAD BLPOINSETTIA LN
LA COSTA AV EL CAMI
NO REALP A L O M A R A I R P O R T RD
A G U A H E D I O ND A CREEK
E N C I NA S C REE K
S A N MARCOS CREEK
ENCI
NITAS CREEKCity Boundary
Water Bodies
Watershed Subbasins:
Agua Hedionda Creek
Batiquitos/San Marcos Creek
Buena Vista Creek
Encinas Creek
Major Roads
Rivers/Streams
Storm Drain Conduit
Storm Drain Structure
City of Carlsbad
Municipal Separate StormSewer System (MS4)
0 3,500
FeetProduced by City of Carlsbad GIS Department June 2008 (r85.08)
Order 2007-0001 Appendix 7.5