Document npbOe00Gz2Gjdq21ZjnrME53X
* UNI TED * STA TESR UNE ITEG D SI TATEO S EN NVI RON1 MEN
TAL PROTECTION AGENCY
AGENCY5 POST OFFICE BSOQSTUOAN,R EMA, 02S1U09I-T39E1 2
100
ONMENTAL PROTECTION
Draft: 11/18/2022
Final:11/29/2022
Subj:Inspection Report
Clean Water Act
City of Warwick, Rhode Island
From:Taylor Fontaine (PG Environmental), Tiffany Brackett (PG
Environmental)
Thru:Kelly Brantner - TOCOR
To:File
I. Facility Information
A. Facility Name:City of Warwick, Rhode Island
B. Facility Address:City Hall-3275 Post Rd, Warwick RI 02886
C. Facility / MS4Eric Hindinger
Program Contacts: Engineering Program Manager
eric.j.hindinger@warwickri.com
David Kurowski - - Field Construction Inspector (Official Title),
also acting City Engineer
david.a.kurowski@warwickri.com
II. Background Information
A. Date(s) of Inspection: Virtual - September 20-22, 2022, Onsite - October 11, 2022
B. Weather Conditions: Virtual - Not applicable, Onsite field activities - Temperatures
approximately 68 degrees and sunny skies
C. US EPA Representatives: Rachel Olugbemi and Damian Bednarz (EPA Region 1)
D. US EPA Contractor Representative(s): Taylor Fontaine (PG Environmental), Tiffany
Brackett (PG Environmental)
E. State / Local Representative(s): Margarita Chatterton, Environmental Engineer III, Rhode
Island Department of Environmental Management (Virtual portion)
ED_019088A_00003843-00001
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
F. Federally Enforceable Requirements Covered During the Inspection: Stormwater
discharges and certain non - stormwater discharges from the City of Warwick (hereinafter,
the City) Municipal Separate Storm Sewer System (MS4) are authorized by the Rhode
Island Pollutant Discharge Elimination System (RIPDES) General Permit Number
RIR040000 entitled " Storm Water Discharge from Small Municipal Separate Storm
Sewer Systems and from Industrial Activity at Eligible Facilities Operated by Regulated
Small MS4s " (hereinafter, the Permit), issued by the Rhode Island Department of
Environmental Management (RIDEM) on December 19, 2003. The City obtained
coverage under the Permit with Permit number RIR040031, effective March 17, 2004.
G. Previous Enforcement Actions: The City entered into a Consent Agreement with the State
of Rhode Island and Providence Plantations Department of Environmental Management,
Office of Compliance, and Inspection on June 7, 2016 (hereinafter, Consent Agreement).
The Consent Agreement provided the City with a list of action items and deadlines to be
implemented. For the purposes of this report, some inspection observations and findings
may touch upon both Permit requirements as well as actions times in the Consent
Agreement.
III. Inspection Purpose
EPA Region 1 with their contractor PG Environmental inspected the City's MS4 program for
compliance with the Permit. For the purposes of this inspection report, the representatives listed
above from EPA Region 1 and PG Environmental comprise the " EPA Inspection Team ".
Virtual meetings were held on September 20-22, 2022, and an onsite inspection on October 11,
2022. The inspection was initially announced to the City via email on September 1, 2022, with a
follow up email on September 7, 2022, once the current City contact was identified. The email
notification included a pre - inspection records request and a tentative agenda for the inspection.
The virtual portion of the inspection consisted of records reviews and virtual interviews with
City representatives and included an evaluation of all six Minimum Control Measures (MCMs)
described in the Permit: Public Education and Outreach, Public Involvement and Participation,
Illicit Discharge Detection and Elimination (IDDE) Program, Construction Site Stormwater
Runoff Control, Stormwater Management in New Development and Redevelopment, and Good
House Keeping and Pollution Prevention for Municipal Operations. To conclude the virtual
interviews, the EPA Inspection Team held a closing conference with City representatives on
September 22, 2022, to provide an overview of the EPA Inspection Team's preliminary
observations from the virtual interviews.
The EPA Inspection Team conducted an onsite visit on October 11, 2022. The EPA Inspection
Team used the onsite visit to inspect outfalls, active construction sites, post - construction best
management practices (BMPs), and municipality - owned and operated facilities. While onsite the
EPA Inspection Team reviewed additional documents, held in - person discussions with City staff,
and observed the City's implementation of MS4 program elements. At the end of the onsite
inspection, a closing conference was held with City representatives to discuss preliminary
observations from the onsite visit.
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
2
ED_019088A_00003843-00002
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
Although the findings in this inspection report identify areas of potential Permit noncompliance,
they do not constitute any formal notice of violation. Appendix A of this report contains the
Permit. Appendix B of this inspection report contains photographs from the field inspection
conducted on October 11, 2022. Appendix C of this inspection report is the Exhibit Log and
contains various documents that were reviewed by the EPA Inspection Team. Exhibits are
referenced as applicable throughout this inspection report.
IV. Permittee Details
The City of Warwick is in Kent County, Rhode Island (RI), approximately 5 miles south of
Providence, RI and 55 miles south of Boston, Massachusetts. The City encompasses 35.5 square
miles of land. As of the 2020 census, the City's population was approximately 82,823. The City
is bordered by the municipalities of Cranston to the North, East Greenwich and Greenwich Bay
to the south, Narragansett Bay to the east, and West Warwick to the West. Additionally, the
City's MS4 system is interconnected with East Greenwich, Cranston, and the Rhode Island
Department of Transportation (RIDOT). City representatives stated that the interconnection from
the City flows through RIDOT's system and out to Greenwich Bay.
The City's primary MS4 receiving waters are Greenwich Bay, Narragansett Bay, Pawtucket
River, Tuscatucket Brook, Gorton Pond, Providence River, and tributaries to Narragansett Bay
such as Buckeye Brook. The Permittee's receiving waters have Total Maximum Daily Loads
(TMDLs), and a full list of TMDLs with the impairment are listed in the City's Stormwater
Management Program Plan (SWMPP) from 2008, (refer to Appendix C, Exhibit 1). At the time
of the inspection, the City had a Draft Revised SWMPP, dated 2016, that focuses solely on the
IDDE Program (refer to Appendix C, Exhibit 2).
There is no combined sewer system in the City. City representatives estimated that 20 percent of
the City uses septic systems and is not connected to a sanitary sewer. The remaining 80 percent
of the City is serviced by a separate sanitary sewer system.
V. Inspection Observations
Based on the conversations held with City representatives during the inspection, as well as a
review of MS4 program documentation provided by City representatives, the EPA Inspection
Team presents the following observations. Findings about how the City implements the MS4
program relative to the requirements of the Permit are indicated in bold text and are accompanied
by relevant Permit citations. As previously stated, although the findings in this inspection report
identify areas of potential Permit noncompliance, they do not constitute any formal notice of
violation.
1. MS4 Program Management
Implementation of the City's MS4 program is primarily administered by the Department of
Public Works (DPW) (including the Highway, Building Maintenance, and Engineering
Divisions), with assistance from the Planning Department, Planning Board, and Building
Department. The City's MS4 program is funded through a line item in the overall capital budget.
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
3
ED_019088A_00003843-00003
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
The City's 2008 SWMPP lists the individuals with roles and responsibilities within the
Stormwater Management Team (refer to Appendix C, Exhibit 1). According to City
representatives, the City hired Mr. David Kurowski as the City Field Construction Inspector in
spring 2022 to assist with updating and improving their MS4 program. City representatives
stated that the City has no formal agreements or memorandums of understanding (MOU) with
neighboring municipalities or RIDOT pertaining to stormwater.
The City has contracted with a third - party consultant in the past (BETA Group, Inc.) to assist
with aspects of the MS4 program including mapping and dry weather inspections, with sampling
and testing as needed. Additionally, the City has contracted with BETA Group, Inc., and
Crossman Engineering to assist with the development of MS4-related documentation to meet
their Consent Agreement deadlines. The City historically worked with the Southern Rhode
Island Conservation District (SRICD) to implement the Public Education and Outreach and
Public Involvement and Participation MCMs. At the time of the inspection, the SRICD was no
longer involved with the City's MS4 program.
Stated above in Section IV of this report, at the time of the inspection, the City had a Draft
Revised SWMPP, dated 2016, that focuses solely on the IDDE Program (refer to Appendix C,
Exhibit 2). The City's 2008 SWMPP is not representative of the City's current MS4 program
personnel or practices. For example, at the time of the inspection, the City Engineer was Dave
Kurowski, not John DeLucia as listed in the SWMPP (refer to Appendix C, Exhibit 1). Further,
the SWMPP routinely lists actions items that " will be developed ", but often were not developed
at the time of the inspection. Specific examples are provided in the sections below. City
representatives stated the SWMPP was being updated at the time of the inspection.
2. Public Education and Outreach
The DPW is responsible for implementing the Public Education and Outreach MCM. The City
relies primarily on print media, a City calendar distributed to City residents (with stormwater
information), and the City webpage for educating the public about stormwater pollution. The
City has identified the following targeted pollutants: pet waste management, lawn fertilizing, and
pesticide use, and has developed flyers, posters, and public signage on municipal trash
receptacles intended to educate the public on these pollutants and reduce their impact.
2.a
The City had not identified specific target audiences for the education program who
are likely to have significant stormwater impacts.
Permit Part IV.B.1.b states that the " operator must document the decision process for the
development of a storm water public education and outreach program. The rationale statement
must address both the overall public education program and the individual BMPs, measurable
goals and responsible persons for the program. If documented strategies are not in place to meet
the requirements of Part IV.B.1.b.2 and 4 of this permit at the time the SWMPP is required to be
submitted, the operator must include development of the strategies within the first year of the
program as a measurable goal. Any changes to the SWMPP to include the strategies must be
submitted in writing in accordance with Part IV.E.2 of this permit. The rationale statement must
include the following information, at a minimum...
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
4
ED_019088A_00003843-00004
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
Permit Part IV.B.1.b.3 requires a " List of the target audiences for the education program who are
likely to have significant storm water impacts (including commercial, industrial and institutional
entities) and why those target audiences were selected. The program must include efforts to
cover both industrial and residential activities including illegal dumping into storm drains. "
The City's 2008 SWMPP Section Develop Outreach Strategies, Target Audiences, and
Partnerships (refer to Appendix C, Exhibit 1) states, " Strategies will be developed to target
specific audiences that could potentially have the greatest impact to minimizing pollutant
loadings and to improving water quality. These audiences will include commercial, industrial,
and institutional entities likely to have a significant impact on storm water. " However, these
strategies and decision process had not been developed at the time of the inspection.
2.b
The City had not identified methods to evaluate the effectiveness of the educational
messages and overall public education and outreach program.
Permit Part IV.B.1.b states that the " operator must document the decision process for the
development of a storm water public education and outreach program. The rationale statement
must address both the overall public education program and the individual BMPs, measurable
goals and responsible persons for the program. If documented strategies are not in place to meet
the requirements of Part IV.B.1.b.2 and 4 of this permit at the time the SWMPP is required to be
submitted, the operator must include development of the strategies within the first year of the
program as a measurable goal. Any changes to the SWMPP to include the strategies must be
submitted in writing in accordance with Part IV.E.2 of this permit. The rationale statement must
include the following information, at a minimum
Permit Part IV.B.1.b.7 requires " Procedures to evaluate the success of this minimum measure,
including discussion of how the measurable goals for each of the BMPs were selected. "
At the time of the inspection, the City had no procedures in place to track the success or impact
of the public education and outreach aspect of the MS4 program.
3. Public Involvement and Participation
The DPW is primarily responsible for implementing the Public Involvement and Participation
MCM. During the inspection, City representatives stated City residents can comment on the
SWMPP and the MS4 program at public meetings, but City representatives stated there was little
commenting / involvement to date. The City representatives did not provide any other examples of
public participation opportunities provided by the City.
3.a
The City had not identified specific target audiences of the public involvement
program, including a description of the types of groups engaged.
Permit Part IV.B.2.b.2.i states that the " operator must include the following milestones in the
Public Involvement / Participation program:
i.
Identify the target audiences of the public involvement program, including a
description of the types of groups engaged (e.g., commercial and industrial
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
5
ED_019088A_00003843-00005
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
businesses, trade associations, environmental groups, homeowner associations,
educational organizations, etc.) "
The City's 2008 SWMPP (refer to Appendix C, Exhibit 1) states, " The City will develop a plan
that includes the identification of target audiences and a description of the types of groups
engaged. " This plan and associated target audiences had not been developed at the time of the
inspection.
3.b
The City did not regularly provide the opportunity for public involvement activities
included in their MS4 program.
Permit Part IV.B.2.b.2.ii states that the " operator must include the following milestones in the
Public Involvement / Participation program:
ii.
Description of types of public involvement activities included in the program (e.g.,
citizen representatives on a storm water management panel, public hearings,
volunteer monitoring, etc.) "
At the time of the inspection, the City had not regularly provided the opportunity for public
involvement activities in their MS4 program. The only public participation activity initiated by
the City was public comment on the draft 2016 SWMPP. City representatives stated that City
personnel will assist in local public activities, but they do not organize them or proactively
provide opportunities for the public. For example, the 2021 Annual Report states that the DPW
regularly assists with community cleanups (refer to Appendix C, Exhibit 3). However, these
cleanups are not organized by the City, but rather other local groups.
3.c
The City had not identified methods to evaluate the effectiveness of the educational
messages and overall public involvement and participation program.
Permit Part IV.B.2.b states that the " operator must document the decision process for the
development of a storm water public involvement / participation program. The rationale statement
must address both the overall public involvement / participation program and the individual
BMPs, measurable goals and responsible persons for the program. If documented strategies are
not in place to meet the requirements of Part IV.B.2.b.2 of this permit at the time the SWMPP is
required to be submitted, the operator must include development of the strategies within the first
year of the program as a measurable goal. Any changes to the SWMPP to include the strategies
must be submitted in writing in accordance with Part IV.E.2 of this permit. The rationale
statement must include the following information, at a minimum ..
Permit Part IV.B.2.b.4 requires " Procedures to evaluate the success of this minimum measure,
including discussion of how the measurable goals for each of the BMPs were selected. "
At the time of the inspection, the City had no procedures in place to track the success or impact
of the public participation aspect of the MS4 program.
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
6
ED_019088A_00003843-00006
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
4. Illicit Discharge Detection and Elimination (IDDE) Program
The DPW (including the Highway, Building Maintenance, and Engineering Divisions)
implements the IDDE MCM. The City's 2008 SWMPP and Revised SWMPP, dated 2016,
describe the City's practices for this MCM (refer to Appendix C, Exhibits 1 and 2).
According to the City's 2021 Annual Report, the City adopted an IDDE ordinance under the
Code of Ordinances on August 17, 2016 (refer to Appendix C, Exhibit 3). The City's IDDE Plan
was updated on January 31, 2019 (refer to Appendix C, Exhibit 4).
According to the City's 2021 Annual Report, the last mapping of the City's MS4 system was
conducted in June 2018 by BETA Group, Inc, and included mapping of all 499 identified
outfalls. The City's mapping is a geographic information systems - based (GIS) interface that
includes location of outfalls, names of waterbodies receiving discharge from outfalls, catch
basins, manholes, and pipe connectivity. City representatives stated that the GIS mapping is in
the process of being updated since the last mapping was updated in 2018. City representatives
stated that the mapping updates should begin in November 2022. The City also maintains CAD
maps at the DPW office.
4.a. The City did not have procedures for the identification of the location of outfalls.
Permit Part IV.B.3.b states that the " operator must document the decision process for the
development of a storm water illicit discharge detection and elimination program. The rationale
statement must address both the overall illicit discharge detection and elimination program and
the individual BMPs, measurable goals and responsible persons for the program. If documented
strategies and procedures are not in place to meet the requirements of Part IV. B.3.b. 2, 6, 7, 8,
and 10 of this permit at the time the SWMPP is required to be submitted, the operator must
include development of the strategies and procedures within the first year of the program as a
measurable goal. Any changes to the SWMPP to include the strategies must be submitted in
writing in accordance with Part IV.E.2 of this permit. The rationale statement must include the
following information, at a minimum...
Permit Part IV.B.3.b.1 requires " Procedures for identification of the location of outfalls.
Description of how an outfall map will be developed. "
As part of their IDDE program, the City has developed several guidance documents and
provided them to the EPA Inspection Team titled:
* Revised SWMPP (approved November 7, 2016) (refer to Appendix C, Exhibit 2);
Illicit Discharge Detection and Elimination (IDDE) Plan Requirements (refer to
Appendix C, Exhibit 5); and
City of Warwick Illicit Discharge Detection and Elimination (IDDE) Plan Revision
(refer to Appendix C, Exhibit 4).
However, these documents did not include procedures for outfall identification (i.e., what is
considered an outfall) and to document the location of those outfalls.
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
7
ED_019088A_00003843-00007
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
4.b. The City was not conducting dry weather screening activities.
Permit Part IV.B.3.b.5.vii states, " The operator must include a measurable goal of performing a
minimum of two surveys, one to be conducted between January 1st - April 30th and one between
July 1st - October 31st by the fourth year of the program. Dry weather surveys must be
conducted no less than 72 hours after the last rain fall of 0.10 inches or more. At a minimum, all
dry weather flows from outfalls must be collected and analyzed for temperature, conductivity,
pH, and bacteria. "
Part C (4) (a) (xiii) of the Consent Agreement (refer to Appendix C, Exhibit 6) requires the City to
" Complete the dry weather surveys of all outfalls for the parameters listed in Attachment H, Part
B and as required by the General Permit in accordance with the following schedule:
1. By 31 October 2017, complete 2016 Inspection Area as shown on Attachment A;
2. By 31 October 2018, complete 2017 Inspection Area as shown on Attachment A;
3. By 31 October 2019, complete 2018 Inspection Area as shown on Attachment A; "
The City has procedures for dry weather screenings in the IDDE Plan Revision (refer to
Appendix C, Exhibit 4). According to the City's 2021 Annual Report, in 2018, the City's
consultant Crossman Engineering was retained to conduct dry - weather surveys at 100 outfalls for
the period of January 1, 2019-April 30, 2019 and 101 outfalls during the July 1, 2019 - - October
31, 2019 periods (refer to Appendix C, Exhibit 3).
At the time of the inspection, City representatives stated that the City had not conducted dry
weather screenings since 2019. The City representatives did not state if dry weather screenings
were conducted in previous years.
A letter dated July 14, 2022 from the City to the RIDEM regarding Consent Agreement
deliverables (refer to Appendix C, Exhibit 7), the City stated, " The City is officially requesting
an extension for these items. DPW personnel are currently reviewing the previously completed
dry weather sampling data and are working with an outside consultant to continue these
inspections. "
4.c
The City had not identified methods to evaluate the effectiveness of the IDDE
program.
Permit Part IV.B.3.b states that the " operator must document the decision process for the
development of a storm water illicit discharge detection and elimination program. The rationale
statement must address both the overall illicit discharge detection and elimination program and
the individual BMPs, measurable goals and responsible persons for the program. If documented
strategies and procedures are not in place to meet the requirements of Part IV. B.3.b. 2, 6, 7, 8,
and 10 of this permit at the time the SWMPP is required to be submitted, the operator must
include development of the strategies and procedures within the first year of the program as a
measurable goal. Any changes to the SWMPP to include the strategies must be submitted in
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
8
ED_019088A_00003843-00008
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
writing in accordance with Part IV.E.2 of this permit. The rationale statement must include the
following information, at a minimum ..
Permit Part IV.B.3.b.12 requires " Procedures to evaluate the success of this minimum measure,
including discussion of how the measurable goals for each of the BMPs were selected. "
At the time of the inspection, the City had no procedures in place to track the success or impact
of the IDDE aspect of the MS4 program.
5. Construction Site Stormwater Runoff Control
The DPW (primarily the Engineering Division) Planning Department, Planning Board, and
Building Department work together to implement the Construction Site Stormwater Runoff
Control MCM. According to City representatives, all projects, except driveways, which involve
600+ square feet of disturbance are reviewed by the Engineering Division and then the Planning
Department or Building Department. City representatives also stated that most project plans also
go through RIDEM due to the geographic location of the City and proximity to wetlands. During
the inspection, City representatives stated the Planning Department reviews grading, erosion and
sediment control (GESC), and stormwater plans involving larger acreage projects or single-
family homes while the Building Department reviews plans for smaller acreage projects that
involve no change or property lines or variances. City representatives did not specify what they
consider " smaller acreage ".
The City representatives state that all plans have three (3) stages of plan approval: master plan,
preliminary plan, and final plan. The public can comment on all master and preliminary plans
and can appeal the project with the City if there is concern or complaint.
As part of the approval process, the City requires that construction projects include sediment and
erosion control methods as part of their plan submittal. The sediment and erosion control
methods are referenced in the plan approval decision and become part of the official construction
documents. The City primarily relies on the Rhode Island Stormwater Management, Design, and
Installation Rules and Rhode Island Stormwater Design and Installation Standards Manual for
guidance with plan approval. All approved plans are stored on a digital database.
According to the City's 2021 Annual Report (refer to Appendix C, Exhibit 3), the City adopted a
construction site stormwater runoff control ordinance in 2016 and relies on this ordinance to
manage and enforce their construction site stormwater runoff control program. The City requires
all plans to include as - builts that are certified by a licensed design engineer. Prior to final project
signoff by the Building Department, the DPW reviews and signs off on any sections relating to
stormwater.
Construction sites are inspected by the DPW (usually the City Field Construction Inspector) to
ensure compliance with design plans and to monitor erosion control methods. If the construction
sites are noncompliant with the approved plans, the City inspector can hold bonds or issue stop
work orders.
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
9
ED_019088A_00003843-00009
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
5.a The City did not have documented procedures for plan and stormwater pollution
prevention plan (SWPPP) review.
Permit Part IV.B.4.a.5 requires the Permittee to develop " Procedures for plan and SWPPP
review including procedures which incorporate consideration of potential water quality impacts.
The site plan review must include procedures for review of sediment and erosion controls and
design of BMPs to minimize water quality impacts. "
According to the City's 2008 SWMPP (refer to Appendix C, Exhibit 1), " The City will establish
a plan review and inspection program for all development and redevelopment projects that
disturb greater than one acre of land, including projects less than one acre that are part of a
common plan of development or sale that discharge into the MS4. The program will include the
analysis of possible actions to prevent the disturbance of land or water systems. The sites will be
inspected and monitored to ensure that the correct BMPs are used. Non - structural and structural
BMPs will be combined to create an effective plan. "
City representatives stated they use the Rhode Island Stormwater Management, Design, and
Installation Rules and Rhode Island Stormwater Design and Installation Standards Manual for
guidance with plan approval. Other than this, they do not currently use a checklist or have
written procedures for plan review and for review of sediment and erosion controls.
5.b
The City did not have documented procedures for inspections and there was no set
frequency for the inspection of active construction sites.
Permit Part IV.B.4.a.7 requires the Permittee to develop " Procedures for inspections and
enforcement of control measures at construction sites. "
During the inspection, City representatives stated that the City Field Construction Inspector
(Dave Kurowski) serves as the primary stormwater inspector for construction sites. They
explained that he will inspect a construction site during the beginning phases of development to
ensure that erosion and sediment controls are in place.
During the virtual inspection portion, City representatives stated that the inspector does not
utilize a checklist for the inspections or follow any developed inspection procedures. However,
the EPA Inspection Team observed the City inspector using an inspection checklist during the
field portion. The City representatives explained that the inspector will only document the
inspection, take photographs, and maintain records if there are observed issues. The inspector
will send a notice letter to the construction site owner / operator in the event of identifies issues.
However, subsequent inspections are not conducted on a regular basis and are typically only
conducted if there are complaints from residents.
5.c
The City had not identified methods to evaluate the effectiveness of the Construction
Site Stormwater Runoff Control program.
Permit Part IV.B.4.b states that the " operator must document the decision process for the
development of a construction site storm water control program. The rationale statement must
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
10
ED_019088A_00003843-00010
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
address both the overall construction site storm water control program and the individual BMPs,
measurable goals and responsible persons for the program. If documented strategies and
procedures are not in place to meet the requirements of Part IV. B.4.b.2, 5 and 8 of this permit at
the time the SWMPP is required to be submitted, the operator must include development of the
strategies and procedures within the second year of the program as a measurable goal. Any
changes to the SWMPP to include the strategies must be submitted in writing in accordance with
Part IV.E.2 of this permit. The rationale statement must include the following information, at a
minimum...
Permit Part IV.B.4.b.10 requires " Procedures to evaluate the success of this minimum measure,
including discussion of how the measurable goals for each of the BMPs were selected. "
At the time of the inspection, the City had no procedures in place to track the success or impact
of the Construction Site Stormwater Runoff Control program aspect of the MS4 program.
6. Stormwater Management in New Development and Redevelopment (Post
Construction Stormwater Management)
The DPW (including the Highway and Engineering Divisions) with support from the Parks and
Recreation Department work together to implement the post construction stormwater
management MCM (post construction). Ownership of post - construction BMPs occurs as a part
of the deed recording process through the Kent County's Registry of Deeds. According to the
City's 2021 Annual Report (refer to Appendix C, Exhibit 3), the City adopted an ordinance in
2016 and relies on this ordinance to manage and enforce their post construction stormwater
management program.
Upon completion of a construction project, the applicant's engineer is required to file an as - built
plan showing that the site was consistent with the approved plans. These plans are maintained in
a digital portal. Decisions for site plans require maintenance of stormwater BMPs. According to
City representatives, residential subdivisions, where applicable, are required to create a
Homeowners Association (HOA) plan detailing stormwater maintenance requirements with
provisions to enforce upkeep if necessary. The 2021 Annual Report (refer to Appendix C,
Exhibit 3) states, " The Engineering Division is working on a program to provide home owners
associations with a " Maintenance Checklist and Inspection form " to be filled out and returned on
an annual basis. "
With regards to private, non - HOA post - construction BMPs, the City's Soil Erosion, Sediment
Control, and Post - construction Stormwater Control ordinance (Chapter 68) requires private
owners to conduct long - term operation and maintenance activities. City representatives stated
that City DPW staff do have the ability to access private property to inspect BMPs. The City's
Engineering Division inspects and maintains City - owned / operated BMPs.
6.a
The City did not have procedures for site plan review to ensure that design of
controls to address post - construction runoff are consistent with the Rhode Island
Stormwater Design and Installation Standards Manual.
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
11
ED_019088A_00003843-00011
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
Permit Part IV.B.5.a.3 requires the Permittee to develop " Procedures for site plan review to
ensure that design of controls to address post - construction runoff are consistent with: The State
of Rhode Island Stormwater Design and Installation Manual (as amended). "
At the time of the inspection, the City did not have any documented procedures for site plan
review to address post - construction runoff.
6.b
The City did not have procedures to ensure the long - term maintenance of privately-
owned BMPs.
Permit Part IV.B.5.a.4 requires the Permittee to develop " Procedures to ensure adequate long
term operation and maintenance of BMPs. "
Part C (4) (a) (xii) of the Consent Agreement (refer to Appendix C, Exhibit 6) requires the City to,
" Establish and maintain an inventory of municipally - owned and privately - owned structural
controls that drain to the MS4 (both baseline existing conditions and as they are constructed) and
implement procedures to ensure adequate maintenance practices are followed; "
At the time of the inspection, City representatives stated that while they maintain City-
owned / operated BMPs, there were no procedures or checks in place to ensure long - term
maintenance of those privately - owned BMPs not located within an HOA subdivision. City
representatives stated that in the past they have tried a self - maintenance program for those
privately - owned BMPs. However, that program apparently suffered from a lack of interest and
participation. City representatives stated that they typically only inspect privately - owned BMPs
if there is a public complaint.
At the time of the inspection, the City was conducting inspections of City - owned / operated post-
construction BMPs. However, the City had no guidelines or procedures for the inspections, and
there was no set frequency. According to the 2021 Annual Report (refer to Appendix C, Exhibit
3), the City has approximately forty - two (42) City - owned / operated BMPs, and only one (1) was
inspected in 2021.
6.c
The City had not identified methods to evaluate the effectiveness of the post
construction program.
Permit Part IV.B.5.b states that the " operator must document the decision process for the
development of a post - construction storm water management program. The rationale statement
must address both the overall post - construction storm water management program and the
individual BMPs, measurable goals and responsible persons for the program. If documented
strategies and procedures are not in place to meet the requirements of Part IV.B.5.b.2, 3, 5, 6, 10
and 12 of this permit at the time the SWMPP is required to be submitted, the operator must
include development of the strategies and procedures within the second year of the program as a
measurable goal. Any changes to the SWMPP to include the strategies must be submitted in
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
12
ED_019088A_00003843-00012
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
writing in accordance with Part IV.E.2 of this permit. The rationale statement must include the
following information, at a minimum
Permit Part IV.B.5.b.14 requires " Procedures to evaluate the success of this minimum measure,
including discussion of how the measurable goals for each of the BMPs were selected. "
At the time of the inspection, the City had no procedures in place to track the success or impact
of the Post Construction Stormwater Management aspect of the MS4 program.
7. Pollution Prevention and Good Housekeeping in Municipal Operations
DPW (including the Highway and Engineering Divisions) is primarily responsible for
implementing the Good House Keeping and Pollution Prevention for Municipal Operations
program MCM. City representatives stated that they contract with International Paving
Corporation to assist with catch basin cleaning.
DPW's Highway Division is responsible for sweeping City - owned / maintained streets each
spring. The number of miles and volume of materials is documented in the 2021 Annual Report
(refer to Appendix C, Exhibit 3). The City's tracking system lists every City street to ensure that
each street is swept each year.
During the inspection, City representatives stated that catch basin and street sweeping materials
are deposited at the DPW yard and are eventually taken to a landfill outside the City's urbanized
area (UA). The City documented the number of catch basins cleaned and inspected in the 2021
Annual Report (113 inspected and cleaned out of 5,583 total) (refer to Appendix C, Exhibit 3).
7.a. The City had not identified all activities and facilities that can discharge stormwater
into the MS4.
Permit Part IV.B.6.a.1 of the Permit requires the Permittee to " Identify all operations such as
activities and facilities that have a point source or the potential for a point source discharge of
storm water to an MS4 or waters of the State associated with activities or operations that have
the potential to introduce pollutants to storm water runoff. "
During the inspection, the City representatives stated they did not have an inventory of City-
owned / operated activities and facilities that could discharge into the MS4. Their best guess at the
time of the inspection was " maybe 21-22 " properties. This included nine (9) fire stations, City
Hall, seven (7) schools, and the DPW yard.
7.b
The City had not developed a program to prevent and reduce pollutant runoff from
City - owned / operates activities and facilities.
Permit Part IV.B.6.a.2 requires the Permittee to " Develop and implement a program to prevent
and reduce pollutant runoff and runoff volumes from facilities owned and operated by the MS4
operator, and from the MS4 and structural BMPs. The program must include an employee
training component. "
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
13
ED_019088A_00003843-00013
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
Permit Part IV.B.6.a.3 requires the Permittee to " Develop and implement a program to prevent
and reduce storm water pollution from operations and maintenance activities that have the
potential to introduce pollutants to storm water runoff. "
The City had not identified City owned and operated facilities with the potential to discharge
pollutants to the MS4 nor developed a pollutant reduction program at the time of the inspection.
According to the City's 2008 SWMPP (refer to Appendix C, Exhibit 3), " The City will evaluate
the existing conditions at each City owned industrial and non - industrial facility to develop
strategies to reduce runoff and eliminate pollution sources. BMPs that accomplish these goals
will be implemented. " According to the City's 2008 SWMPP, this measurable goal was to be
achieved by 2007 but was not completed at the time of the inspection.
7.c The City had not developed an operation and maintenance (O & M) program.
Permit Part IV.B.6.a.4 requires the Permittee to " Develop inspection procedures and schedules
for long term O & M of municipal facilities, municipal structural BMPs and the MS4. "
During the inspection, City representatives stated that they had not developed O & M procedures
for any facilities. City representatives stated that DPW staff regularly conduct maintenance and
cleaning operations at the DPW yard, but that there is no checklist, regular schedule, and
maintenance activities are not documented.
7.d
The City did not have a stormwater training program that was administered to all
staff involved in the MS4 program.
Permit Part IV.B.6.a.5 requires the Permittee to " Develop and implement an employee training
program for good housekeeping, pollution prevention, and O & M of BMPs. "
At the time of the inspection, the City had not developed a training program for all City
personnel involved in stormwater - related activities that includes good housekeeping, pollution
prevention, and O & M of BMPs. The 2021 Annual Report (refer to Appendix C, Exhibit 3)
documents that only Eric Earls (DPW Director) and Eric Hindinger (Engineering Program
Manager) received stormwater - related training in 2021.
According to the City's 2008 SWMPP (refer to Appendix C, Exhibit 1), " All DPW, Engineering,
Parks and Recreation, Sewer Authority, and School Department employees involved in operation
and maintenance activities related to stormwater discharges will be trained on pollution
prevention and good housekeeping measures using the materials collected and developed. Topics
will include:
* Park and open space maintenance
Fleet and building maintenance
New construction and land disturbances
Storm water system maintenance "
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
14
ED_019088A_00003843-00014
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
7.e
The City had not implemented SWPPPs at municipal facilities that discharge
stormwater associated with industrial activity.
Permit Part IV.B.6.a.6 requires the Permittee to " Implement a site - specific SWPPP developed for
each facility that discharges storm water associated with industrial activity. "
Permit Part IV.B.6.b.5 states, " For all facilities with discharges of storm water associated with
industrial activity, the SWMPP must contain a site specific SWPPP that includes the description
of BMPs, including structural and non - structural controls for reducing or eliminating the
discharge of pollutants from municipal operations and facilities. "
According to the City's 2008 SWMPP (refer to Appendix C, Exhibit 1), The City will complete
SWPPPs in accordance with Part IV.B.6.b.5 of the General Permit for the following industrial
facilities owned and operated by the City of Warwick:
DPW Maintenance Facility
The Warwick Sewer Treatment Facility
At the time of the inspection, the City had not developed SWPPPs for any identified City-
owned / operated facilities.
7.f The City had not developed procedures for catch basin / storm sewer cleaning and
inspection.
Permit Part IV.B.6.b.1.ii requires the Permittee to develop " Procedures for inspections, cleaning
and repair of detention / retention basins, storm sewers and catch basins with appropriate
scheduling given intensity and type of use in the catchment area. The operator must develop a
maintenance schedule for inspection and maintenance of BMPs. The maintenance program must
at a minimum incorporate all permit requirements and maintenance specifications of the
particular BMP. Maintenance schedules must address issues related to the performance of BMPs
observed during their inspection. The operator must make changes to the frequency of
maintenance of structural BMPs when dry weather surveys of outfalls and inspections of the
system and BMPs reveals that the maintenance frequency is not adequate. The operator must
maintain records on inspections and maintenance performed on structural BMPs. "
Part C (4) (a) (xi) of the Consent Agreement (refer to Appendix C, Exhibit 6) requires the City to,
" By the deadlines in Paragraph C (4) (a) (ix) above and annually thereafter, inspect all catch basins
and manholes for sediment accumulation and clean as necessary. Increased inspections and
maintenance should be considered. After at least 2 consecutive years of operational data has been
collected, Warwick may submit a request for approval for a lesser frequency of inspection based
on evidence indicating the system does not require annual cleaning. "
According to the City's 2008 SWMPP (refer to Appendix C, Exhibit 1), " The City will develop
an operations and maintenance program for BMPs, storm sewers, and catch basin
inspection / cleaning within the first year of the program. " However, the City had not developed
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
15
ED_019088A_00003843-00015
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
an O & M program for BMPs, storm sewers, and catch basin inspection / cleaning at the time of the
inspection.
7.g The City had not implemented procedures for street sweeping.
Permit Part IV.B.6.b.1.vi requires the Permittee to develop " Procedures for the development and
implementation of a regular street and road sweeping program that includes sweeping of all
streets and roads within the regulated area annually, to be fully implemented by the third year of
the program. The operator is required to sweep all streets and roads within the regulated area
annually unless a lesser frequency can be justified based on at least two consecutive years of data
indicating the street or road does not require annual sweeping. The selected frequency of
sweeping must be based on complaints received, historical records, high potential for sediment
accumulation in the catch basins and at outfalls and observed flooding problems. The program
must also include procedures to increase the frequency of sweeping. Any changes to the
sweeping program and all documentation and supporting rationale should be reported to the
Department in the Annual Report as required in this permit. The RIDOT must apply this program
to the MS4 within the urbanized and densely populated areas but may propose an alternate
program or frequency for divided highways outside the urbanized or densely populated areas. "
According to the City's 2021 Annual Report, approximately 180 (50 percent) of the City's 395
total roadway miles had been swept in 2021 (refer to Appendix C, Exhibit 3).
7.h
The City had not identified methods to evaluate the effectiveness of the Pollution
Prevention and Good Housekeeping program.
Permit Part IV.B.6.b states that the " operator must document the decision process for the
development of a pollution prevention / good housekeeping program for facilities, maintenance
activities, and operations that have the potential to introduce pollutants to storm water runoff.
The rationale statement must address both the overall pollution prevention / good housekeeping
program and the individual BMPs, measurable goals and responsible persons for the program. If
documented strategies and procedures are not in place to meet the requirements of Part IV.
B.6.b.1, 2, 4, 7, and 8 of this permit at the time the SWMPP is required to be submitted, the
operator must include development of the strategies and procedures within the first year of the
program as a measurable goal. Any changes to the SWMPP to include the strategies must be
submitted in writing in accordance with Part IV.E.2 of this permit. Unless otherwise stated the
remaining requirements have to be submitted by the time authorization to discharge is required.
For all facilities that have a discharge of storm water associated with industrial activity to a MS4
or a waters of the State, the operator must develop and implement the procedures required in Part
IV.B.6.b.3 and 5 by the effective date of this permit. The rationale statement must include the
following information, at a minimum...
Permit Part IV.B.6.b.10 states " Procedures to evaluate the success of this minimum measure,
including discussion of how the measurable goals for each of the BMPs were selected. "
At the time of the inspection, the City had no procedures in place to track the success or impact
of the Pollution Prevention and Good Housekeeping aspect of the MS4 program.
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
16
ED_019088A_00003843-00016
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
Onsite Inspection - - Site Visit Summaries
The table below summarizes the onsite inspection portion of the inspection site visits related to
the City's MS4 program conducted on October 11, 2022. The weather at the time of the field
visit was sunny with temperatures approximately 62 F to 68 F. Appendix B includes
photographs of the notable observations at the locations visited.
Site Location # 1: City of Warwick DPW Yard-925 Sandy Ln, Warwick, RI 02889
Geographic Location: 41.7076 , -71.4140
Date: 10/11/2022
Time: 9:30 AM (EDT) to 10:30 AM (EDT)
Notable Site Conditions:
The City shares the DPW Yard location with the City's Water Division, but maintains
separate areas for the storage of materials, vehicles, and activities.
The City's DPW Yard is primarily used for miscellaneous storage of maintenance materials,
municipal trash can storage (for residential damaged trash cans), municipal vehicle
storage, salt storage, vehicle fueling, municipal vehicle maintenance, etc. (refer to
Appendix B, Photographs 1 through 3).
The EPA Inspection Team observed the DPW Yard's vehicle washing area (refer to
Appendix B, Photographs 4 and 5). City representatives stated that this area is used only
for municipal vehicles, and that the observed catch basins lead to an onsite " sediment soil
separator " (oil / water separator (OWS)) (refer to Appendix B, Photograph 6).
Adjacent to the vehicle washing area, the EPA Inspection Team observed a storage
location for used paints dropped off by residents (refer to Appendix B, Photographs 7 and
8). The paints were stored outside on a wooden pallet without cover.
The EPA Inspection Team observed the DPW Yard's municipal vehicle fueling station with
underground storage tanks (USTs) comprising a 6,000-gallon gasoline tank and 12,000-
gallon diesel fuel tank (refer to Appendix B, Photographs 9 and 10). City representatives
stated that the manholes by the fueling station are connected to an underground
oil / water separator (OWS). The EPA Inspection Team observed petroleum stains on
asphalt adjacent to the fueling station.
The EPA Inspection Team observed the DPW Yard's salt storage pile and sand mix piles.
These piles were located outside on the impervious asphalt lot and were without cover or
functioning containment controls to prevent migration (refer to Appendix B, Photographs
11 through 14). Specifically, the salt storage pile had neither cover nor containment, and
the sand mix pile has a nonfunctioning containment control and no cover. City
representatives stated that a new storage building had been approved and would
hopefully start construction this year. Additionally, the City representatives said that the
manholes in the vicinity of the salt storage pile and sand mix piles are connected to the
City's sanitary sewer system (refer to Appendix B, Photograph 15).
In the northeastern corner of the DPW Yard, the EPA Inspection Team observed
approximately thirteen (13) 55-gallon drums being stored outside on the ground or on
wooden pallets without cover. At the time of the inspection, some of the drums were
uncapped and still contained petroleum product (refer to Appendix B, Photographs 16 and
17).
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
17
ED_019088A_00003843-00017
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
In the northern portion of the DPW Yard, the EPA Inspection Team observed stored
snowplow equipment on the ground without cover. The EPA Inspection Team observed
residual petroleum staining on the adjacent lot (refer to Appendix B, Photographs 18 and
19).
The EPA Inspection Team observed the DPW Yard's maintenance garage where City staff
perform everything from oil changes to full engine repairs. The EPA Inspection Team
observed petroleum staining on the garage floor (refer to Appendix B, Photographs 20 and
21).
Directly offsite from the DPW Yard is the McDermott public swimming pool. Stormwater
flow from the DPW Yard is conveyed northwest into a parking area near the pool where it
infiltrates into a dry well system. City representative stated that though offsite, they
maintain the system. However, the City did not have a set maintenance schedule to
ensure that the dry well system is functioning properly (refer to Appendix B, Photographs
22 through 24).
In the western portion of the DPW Yard, the EPA Inspection Team observed the following:
An uncontained and uncovered cold patch storage pile (refer to Appendix B,
Photograph 25) adjacent to a catch basin that is connected to the dry well at the
McDermott public swimming pool (refer to Appendix B, Photographs 22 through
24);
Traffic paint stored outside on the ground without cover (refer to Appendix B,
Photograph 26);
Several catch basins connected to the City's storm sewer system (refer to
Appendix B, Photographs 27 and 28);
" Bay C7 " that is used to store petroleum products. The EPA Inspection Team
observed heavy petroleum staining on the impervious pavement outside the bay
(refer to Appendix B, Photograph 29); and
Used vehicle batteries stored outside for pickup and disposal (refer to Appendix B,
Photograph 30).
Site Location # 2: City Composting Station-111 Range Rd, Warwick, RI 02889
Geographic Location: 41.7116 , -71.4161
Date: 10/11/2022
Time: 10:38 AM (EDT) to 10:56 AM (EDT)
Notable Site Conditions:
The EPA Inspection Team visited the City's composting station, a municipally owned property.
This location serves as a depository for resident waste oil, composting materials, yard waste
(i.e., leave and brush), cardboard, tires, mattresses, excess street sweeping materials, and light
metal waste (refer to Appendix B, Photographs 31 through 33).
The waste oil area comprises a double - walled 500-gallon waste oil tank. The EPA Inspection
team observed petroleum staining on the ground adjacent to the tank, and there was no spill
kit or absorbent materials located anywhere near the tank (refer to Appendix B, Photographs
34 and 35).
This facility was relatively flat and contained no catch basins or drains.
Site Location # 3: Warwick Fire Department Station 4-1501 W Shore Rd, Warwick, RI 02889
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
18
ED_019088A_00003843-00018
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
Geographic Location: 41.7074 , -71.3839
Date: 10/11/2022
Time: 11:05 AM (EDT) to 11:10 AM (EDT)
Notable Site Conditions:
The EPA Inspection Team observed the Warwick Fire Department Station 4. The fire
station maintains a 55-gallon drum used for storing waste cooking oil (refer to Appendix B,
Photograph 36). The drum is stored outside without containment.
All stormwater flow from the fire station would flow east onto West Shore Road, a RIDOT-
maintained roadway.
Site Location # 4: Draper Avenue Satellite Location-69 Draper Ave, Warwick, RI 02889
Geographic Location: 41.7059 , -71.3762
Date: 10/11/2022
Time: 11:15 AM (EDT) to 11:20 AM (EDT)
Notable Site Conditions:
The EPA Inspection Team observed the Draper Avenue satellite station where the City
stores construction materials, aggregates, catch basin / street sweeping materials, and some
composting facility overflow (refer to Appendix B, Photograph 37).
There were no storm drains onsite.
Site Location # 5: Wyndsor Way Retention Basin - Wyndsor Way, Warwick, RI 02889
Geographic Location: 41.7005 , -71.3834
Date: 10/11/2022
Time: 11:30 AM (EDT) to 11:35 AM (EDT)
Notable Site Conditions:
The EPA Inspection Team observed the Wyndsor Way retention basin, a City owned and
operated BMP that collects and retains stormwater from Wyndsor Way (refer to Appendix
B, Photographs 38 and 39).
According to the City representatives, the basin was installed in 2014-2015.
Site Location # 6: Mill Cove Post - Construction Retrofit BMP-Mill Cove Road, Warwick, RI 02889
Geographic Location: 41.7114 , -71.3673
Date: 10/11/2022
Time: 11:48 AM (EDT) to 11:55 AM (EDT)
Notable Site Conditions:
The EPA Inspection Team observed a post - construction retrofit BMP located on Mill Cove
Road (refer to Appendix B, Photographs 40 and 41).
City representatives stated that approximately 150 feet of paved roadway was removed
and replaced with an infiltration system comprising soil and riprap.
Site Location # 7: Strand Avenue Bioretention BMPs - Strand Avenue, Warwick, RI 02889
Geographic Location: 41.6860 , -71.4010
Date: 10/11/2022
Time: 1:00 PM (EDT) to 1:06 PM (EDT)
Notable Site Conditions:
The EPA Inspection Team observed a bioretention BMP that captures and infiltrates
stormwater from Strand Avenue (refer to Appendix B, Photographs 42 and 43).
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
19
ED_019088A_00003843-00019
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
City representatives stated that stormwater infiltrates into the City's storm sewer system.
The EPA Inspection Team observed that some of the inlets into the bioretention BMPs
were inundated with sediment and vegetation and required maintenance (refer to
Appendix B, Photograph 44).
Site Location # 8: Outfall # 166-2-Oakland Beach, Warwick, RI 02889
Geographic Location: 41.6859 , -71.4014
Date: 10/11/2022
Time: 1:10 PM (EDT) to 1:18 PM (EDT)
Notable Site Conditions:
The EPA Inspection Team observed Outfall # 166-2 (and associated catch basin) located at
the end of Strand Avenue (refer to Appendix B, Photograph 45).
The outfall conveys stormwater onto the nearby Oakland Beach and Buttonwoods Cove
(refer to Appendix B, Photograph 46).
The City representatives stated that this outfall is often under water due to the local tides
and fills with sand / sediment often.
City representatives further stated that this outfall was previously inspected by Crossman
Engineering Inc. and reiterated that the City was not currently conducting outfall
inspections.
Site Location # 9: Outfall # 152-3- Mohawk Avenue and Powhatan Street, Warwick, RI 02889
Geographic Location: 41.6883 , -71.4004
Date: 10/11/2022
Time: 1:27 PM (EDT) to 1:30 PM (EDT)
Notable Site Conditions:
The EPA Inspection Team observed Outfall # 152-3 located at the intersection of Mohawk
Avenue and Powhatan Street (refer to Appendix B, Photographs 47 and 48).
Stormwater is conveyed onto these streets, through Outfall 152-3, and into an unnamed
pond connected to Bushneck Cove / Buttonwoods Cove.
The EPA Inspection Team observed discharge from Outfall # 152-3 at the time of the
inspection.
Site Location # 10: Seasons Corner Market Construction Site - Yucatan Drive and Betsy Williams
Drive, Warwick, RI 02889
Geographic Location: 41.7208 , -71.4038
Date: 10/11/2022
Time: 1:45 PM (EDT) to 2:22 PM (EDT)
Notable Site Conditions:
The EPA Inspection Team observed an active construction site scheduled to be a Seasons
Corner Market, with an estimated completion date of Spring 2023 (refer to Appendix B,
Photographs 49 through 51). The EPA Inspection Team observed the City's Field
Construction Inspector lead the inspection of the construction site. At the time of the
inspection, the construction site was conducting dewatering activities utilizing frac tanks to
remove sediment before discharge into the City's MS4 (refer to Appendix B, Photographs
52 and 53).
* The EPA Inspection Team observed sediment trackout onto Ansonia Road, a public
roadway (refer to Appendix B, Photograph 54). This location on Ansonia Road serves as the
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
20
ED_019088A_00003843-00020
City of Warwick, Rhode Island (RIPDES: RIR040031)
MS4 Inspection Report
main entrance to the site did not have a stabilized construction entrance or other BMP to
minimize sediment trackout.
Site Location # 11: Warwick Pond Outfall # 67-2-Stanmore Road and Edgehill Road, Warwick, RI
02889
Geographic Location: 41.7225 , -71.4092
Date: 10/11/2022
Time: 2:35 PM (EDT) to 2:45 PM (EDT)
Notable Site Conditions:
The EPA Inspection Team observed Warwick Pond Outfall # 67-2 located at the corner of
Stanmore Road and Edgehill Road (refer to Appendix B, Photographs 55 and 56).
Stormwater is conveyed from these two roads, through a ditch complete with several
check dams, and into Warwick Pond.
Site Location # 12: Providence Airport Distribution Center Construction Site - Commerce Drive,
Warwick, RI 02888
Geographic Location: 41.7368 , -71.4207
Date: 10/11/2022
Time: 2:58 PM (EDT) to 3:45 PM (EDT)
Notable Site Conditions:
The EPA Inspection Team observed an active 46-acre construction site scheduled to be a
delivery hub for Rhode Island T. F. Green International Airport (PVD). The EPA Inspection
Team observed the City's Field Construction Inspector lead the inspection of the
construction site. At the time of the inspection, the site was conducting vertical
construction on a planned warehouse. The EPA Inspection Team observed the following:
A completed stormwater basin (refer to Appendix B, Photograph 57);
Silt fencing located adjacent to Commerce Drive that was downed and in need of
repair (refer to Appendix B, Photograph 58);
Construction workers dewatering cement trucks into the concrete washout area
(an earthen pit) (refer to Appendix B, Photographs 59 through 61); and
Trackout onto Commerce Drive, a public roadway (refer to Appendix B,
Photograph 62).
Inspection Dates: September 20-22, 2022 (Virtual) and October 11, 2022 (Onsite)
21
ED_019088A_00003843-00021