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Standard Operating Procedure for:

A.1 IDDE: Inspections During Mapping

Purpose of SOP:

inspections during mapping.

This SOP provides a basic checklist for managers and field crews conducting illicit discharge

Always:

@ Characterize the outfall by recording information on the Storm

Drain Characteristic Form.

4 Conduct inspections during dry weather periods using the Dry

Weather Outfall Inspection Form.

4 Follow procedure below if an illicit discharge is encountered

(such as raw sewage, paint, etc...
4 Conduct inspections with at least two staff per crew.
@ Carry a list of emergency phone numbers.

Whenever Possible:

¢@ Conduct inspections during low groundwater and leaf off

conditions.

@ Photograph the outfall with a digital camera (use dry erase or

chalk board to identify outfall).
4 = Identify and label the outfall with a unique identifier. For
example “SWO-013".

4 If dry weather flow is present at the outfall, and the flow does
not appear to be an illicit discharge attempt to identify the
source of the flow (intermittent stream etc.), then document the

discharge for future comparison.
Carry an authorization letter.

Ld

4 Collect samples of flowing discharges before and after source

removal. (Contact NHDES for technical assistance.)

Never:
@ Never put yourself in danger.
@ Never enter private property without permission

Dry Weather Discharge

The CWP defines dry
weather as a 48 hour period
with no runoff-producing
rainfall. NEIWPCC defines
dry weather as a 48-72 hour
period with less than 1/10-
inch rainfall.

Equipment list for mapping:

Existing paper maps

Field sheels

Camera (preferably digital) on
pole

GPS Unit

Spray paint (or other marker)
Cell phones or

hand-held radios

Clip boards and pencils
First aid kit

Flash light or head lamp

10. Surgical gloves

11. Tape measure

12. Temperature probe

13. Waders

14. Watch with a second hand
15. Five 1-liter sample bottles.
16. Dry erase board (for photos)
17. Hand sanitizer

18. Sampling pole

19, Mirror (for light)

20. Safety vests

Corny DAP WN

Procedures to follow if illicit discharge is detected:
a Call dispatch / supervisor.

Use the Dry Weather Outfall Inspection Form to document observations.

Take photos.

Qo
a Visually inspect general area for possible sources.
Oo
a Estimate fiow/collect samples if instructed to do so.

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Hic it Discharge Detection and Eimination Plan

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Outfall Reconnaissance Inventory/Sample Collection Field Sheet

Section 1: Background Data

Subwatershed: Outfall ID: Outfall not in
inventory: 1
Today’s date: Time (Military):
Investigators: Form completed by:
Temperature: Rainfall (in.): Last 24 hours: Last 48 hours:
Latitude: Longitude: GPS Unit: Location as
mapped: C1
Camera: Photo #s:
Land Use in Drainage Area (Check all that apply): Maintenance Priority:
CO Industrial CJ Open Space (| Priority 1 O)Priority2 O
Priority 3
C] Urban Residential C1 Institutional nionity
Notes:
C1 Suburban Residential Other:
LC] Commercial Known Industries:
Notes (e.g., origin of outfall, if known):
Section 2: Outfall Description
Location Material Shape
LI Closed Pipe LIRCP (CMP CO) Circular LC Single In water:
Opvc OHDPE | O Elliptical “Double _INo
Diameter/Dimensions: C Steel C1 Box CO Triple CL] Partially
CJ Other: C1 Other: C1 Other: CI] Fully
With Sediment:
C1 No
(Partially
C1 Fully
CL] Open drainage C1 Concrete/Paved C1 Trapezoid Depth:
—Fanthen C1 Parabolic Top Width:
rip-rap C1 Other: oaa..
CJ Other: Bottom Width:
J In-Stream (applicable when collecting samples)
Flow Present? C1 Yes C1 No (If No, Skip to Section 5)
Flow Description Ol Trickle [Moderate 1 Substantial

Hic it Discharge Detection and Himination Plan 38

Section 3: Quantitative Characterization

39

Field Data For Flowing Outfalls

Parameter Result Unit Equipment
LI Flow #1 Volume Liter Bottle
Time to fill Sec Stop watch
-] Flow #2 Flow Depth In Tape measure
Flow Width , . Ft, In Tape measure
Measured Ft, In Tape measure
length , ”
Time of Sec Stop watch
travel
Hic it Discharge Detection and Himination Plan 39

Outfall Reconnaissance Inventory Field Sheet

Section 4: Physical Indicators for Flowing Outfalls Only

Are Any Physical Indicators Present in the flow? []Yes LINo

(If No, Skip to Section 5)

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Indicator Check if Description Relative Severity Index
Present
Odor oO KiSewage (Rancid/Sour (MPetroleum/Gas C1 — Faint L]2 —- Easily Detected L13 — Noticeable from a
C1Sulfide (Other: distance
Color Oo OlCleaar OBrown Gry (ODyYellow | O1-Faintcolorsinsample | 412 — Clearly visible in (13 — Clearly visible in
OlGreen Orange OCRed COther: bottle sample bottle outfall flow
Turbidity Oo See severity C1 - Slight cloudiness (12 - Cloudy (13 — Opaque
Floatables - Ol (lSewage (Toilet Paper, etc.) [JSuds (11 — Few/slight: origin not (12 — Some; indicators of (13 — Some; origin clear
foes re (1Petroleum (oil sheen) [JOther: obvious origin (e.g., possible suds or (e.g., obvious soil sheen,
Trash! oil sheen) suds, or floating sanitary
materials)

Section 5: Physical Indicators for Both Flowing and Non-Flowing Outfalls
Are physical indicators that are not related to flow present? [J Yes LINo

Indicator Check if Description Comments
Present
Outfall O C1 Spalling, Cracking or Chipping C1) Peeling Paint
Damage CiCorrosion
Deposits/Stains Oo C Oily CIFlow line (Paint “Other:
Abnormal Ol Excessive (Inhibited Invasive Species
Vegetation
Poor Pool Oo C1 Odors C1 Colors CZ Floatables COil Sheen
Quality C] Suds _] Excessive Algae C] Other
Pipe Benthic Oo CBrown COrange C Green CO Other:
Growth
Animal Life O C1 None/ little presence (1 Average presence [JHigh presence

Section 6: Overall Outfall Characterization

C Unlikely

C1] Potential (presence of two or more indicators)

C1 Suspect (one or more indicators with a severity of 3) [1 Obvious

Hic it Disc harge Detection and Eimination Plan

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Section 7: Field Tests

4l

Test Calibration Date Data Test Calibration Date Data
And LOT# And LOT#
Ammonia ppin |Temperature oF
Chlorine mg/L | Nitrate ppm
Conductivity /com | Nitrite ppm
HMO
Salinity ppt we mg/L
pH

Section 8: Data Collection

Sample for the lab?

CL] Yes L] No

If yes, collected from:

CL] Flow LI Pool

If yes:
C1] Surfactants

OC) Aluminum
C1 Tron

L] Phosphorous
OE. Coli

Chain of Custody Number:

Section 9: Non-Illicit Discharge Concerns (eg. trash, repairs needed)

Notes:

Hic it Disc harge Detection and Eimination Plan

Storm Drain Outfall Characteristics Form

| Location Information

Date: Inspector:

Time:

Outfall ID:

Outfall Location:

Receiving Waterbody:

Photo Taken: Yes No Photo ID:

Weather Clear Cloudy Approximate Temp: _ Ss Wind Present: Yes No
Precipitation in the past 3 days: No Yes inches

Dry Weather Inspection Form Used: Yes No-No Discharge No-—NoDry Weather No - Other
Pipe Flow: None Trickle Steady 1/4 pipe flow or more

Seepage Flow: None Trickle Steady 1/4 pipe flow or more

| Outfall Description _ Select all that are applicable, fill in as necessary

Submerged in water-_no__partially __ fully

Type: RCP CMP Dimension (inches)

Open Pipe- PVC HDPE Circular Box
Steel Other Elliptical Other

Open Drainage- Concrete Trapezoidal Depth (inches)
Earthen Parabolic Top width (inches)
Riprap Other Bottom width (inches)
Other

| Additional Information

Sediment Condition: Open % Full % Full % Full Plugged
Structure Condition: Excellent Good Fair Poor

Trashilitter present: Yes No Nt

Yard waste observed: Yes No

General Comments:

Actions Taken:

Follow-up Required: Yes No

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Hic it Discharge Detection and Eimination Plan

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Dry Weather Outfall Inspection Form

| Location Information

Date:
Time:

Outfall ID:

Inspector:

Outfall Location:

Receiving Waterbody:

Photo Taken: Yes No Ph

Weather: Clear
Precipitation in the past 3 days:

Cloudy
No Yes

Trickle
Trickle

None
None

Pipe Flow:
Seepage Flow:
Color (if flow is present):

oto ID:

Approximate Temp:
inches

Steady
Steady

1/4 pipe flow or more
1/4 pipe flow or more

Wind Present: Yes No

| Inspection Information

Obvious Debris/Pollution:
None

Foam

Staining

Floating Green Scum
Oil / Film

Vegetative Mat/or Gray Mat
Sewage Solids 1

TOTAL |

owuwo ®8wm WO

GRAND TOTAL SCORE =

Select all that are applicable

Odor:

None/Natural

Musty 5
Sewage/septic 10
Petroleum 10

TOTAL

Water Clarity:
Clear
Cloudy

Opaque 10

TOTAL

Additional Information

Sediment Condition: 1/4 Full
Structure Condition:
Trash/litter present:

General Comments:

Open
Excellent
Yes No

1/2 Full 3/4 Full

Good Fair Poor

Yard waste observed:

Plugged

Yes No

Potential Sources / Actions Taken:

Sample collected? Yes No
By whom?

Parameters:

Results:

Follow up required: Yes No

NOTE: Sketch site map/note on back.

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Hic it Discharge Detection and Eimination Plan

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NOTE: This information is to accompany the Dry Weather Outfall Inspection Form.

Odor — Most strong odors, especially gasoline, oils, and solvents are likely associated with high responses on the toxicity
screcning test.

Stale sanitary wastewater: sewage

Detergent, perfume: Laundromat or household laundry

Sudiur (“rotten eggs"): industries that discharge sulfide compounds or organics (meat packers, canneries, dairies)

Or! and gas: facilities associated with vehicle maintenance or petroleum product storage (gas stations) or petroleum

refineries

Ratwid-sour: food preparation facilities (restaurants, hotels)

Color — Important indicator of inappropriate industrial sources. Dark colors, such as brown, gray, or black are the most common.
Yellow: chemical plants, textile, and tanning plants
Brown: meat packers, printing plants, metal works, stone and concrete, fertilizers, and petroleum refining facilities [note:
can be from natural organic acids if a wetland is upstream]
Green: chemical plants, textile facilities
Red: meat packers [note: can be from organic acids if a wetland is upstream]
Gray: dairies

Turbidity — ‘The cloudy appearance of water caused by the presence of suspended or colloidal matter. In dry weather, high
turbidity is often a characteristic of undiluted industrial discharges.

Clondy: sanitary wastewater, concrete or stone operations, fertilizer facilities, automotive dealers

Opague: food processors, lumber mills, metal operations, pigment plants

Floatable matter — a contaminated flow may contain floating solids or liquids directly related to industrial or sanitary wastewater
pollution. Floatables of industrial origin may include animal fats, spoiled food, oils, solvents, sawdust, foams, packing materials,
or fuel.
Oif sheen: petroleum refiners or storage facilities and vehicle service facilities. (note: there is a type of bacteria that looks
like an oil sheen. If you take a stick and swirl around the sheen, it will break up into blocky pieces if it is the bacteria, A
true oil sheen will quickly re-form and not look blocky.]
Toilet paper bits, fecal bits, food particles, sanitary wastewater
Soap suds. if white or a clear sheen, laundry discharge (check odor) [note: can also occur from natural surfactants; usually
off-white or tan with an earthy-fishy odor.

Deposits and Stains — Any type of coating near the outfall, usually a dark color. Deposits and stains will often contain fragments
of floatable substances.
Lats of sediment: construction site erosion, sand and gravel pits, winter road applications
Oil stain: petroleum storage, vehicle service facilities, petroleum refineries
Resty: precipitates from iron-rich water (natural or industrial) [note: if slimey and clumpy, it could be iron bacterial
Grayish-biack deposits and bair: \eather tanneries
[White erystalline powder: nitrogenous fertilizer waste

Vegetation — Vegetation surrounding an outfall may show the effects of industrial pollutants. Decaying organic materials coming
from various food product wastes would cause an increase in plant life, while the discharge of chemical dyes and inorganic
pigments from textile mills could noticeably decrease vegetation. It is important not to confuse the adverse effects on high storm
water flows on vegetation with highly toxic dry-weather intermittent flows.

Favessive growth: food product facilities, fertilizer runoff (lawns, golf courses, and farms)

Inhibited growth: high storm water flows, beverage facilities, printing plants, metal product facilities, drug manufacturing,

petroleum facilities, vehicle service facilities, and automobile dealers

Damage to Outfall Structures — Outfall damage can be caused by severely contaminated discharges that are very acidic or basic
in nature. Primary metal industries have a strong potential to cause outfall structure damage because their batch dumps are highly
acidic. Poor construction, hydraulic scour, and old age can also negatively affect the condition of al outfall structure.

Concrete or spalling (breaking off inte cbips or layers): industrial flows

Peeling paint: industrial flows

Metal corrosion: industrial flows

This sheet was courtesy of the NHDES (modified from Pitt et al., 1993 Investigation of Inappropriate Pollutant Entries into Storm
Drainage Systems: a User's Guide. EPA Office of research and Development, EPA/600/R-92/238).

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Hic it Discharge Detection and Himination Plan 44

45

A.2

Standard Operating Procedure for:

IDDE: Long-Term Inspections

Purpose of SOP: | To provide supervisor and field crew with a punch list of things to remember during

regularly scheduled inspections.

Always:

é
é

Conduct inspections during dry weather periods.

Check the outfall’s dimensions, shape, and component material using the Storm Drain
Characteristic Form.

Characterize and record observations on basic sensory and physical indicators (e.g., odor,
color, oil sheen).

if an illicit discharge is encountered (such as raw sewage, paint, etc.), follow the procedure
below.

Whenever Possible:

o
é
o

Never:

Perform inspections of all the outfalls at least once per permit cycle (long term).
Photograph the outfall with a digital camera (use dry erase board to identify outfall).

Identify and label the outfall with a unique identifier. For example “SWO-013".

Carry a letter of authorization with you during inspections that outline who you are and what
you are doing.

lf dry weather flow is present at the outfall, and the flow does not appear to be an obvious
illicit discharge (e.g., flow is clear, odorless, etc.), attempt to identify the source of the flow
(intermittent stream, etc.) then document the discharge for future comparison.

Collect samples before and after source removal. Contact NHDES for technical assistance.

Never put yourself in danger.
Never enter private property without permission.

Procedures to follow if illicit discharge is detected:

a Call dispatch / supervisor.

a Document observations using the Dry Weather Outfall Inspection Form.
o Visually inspect general area for possible sources.

O Take photos.

oO Estimate flow/collect samples if instructed to do so.

A-5

Hic it Discharge Detection and Himination Plan 45

Board of Aldermen — 9/12/17 Page 5

There’s a wonderful national organization called “the Americans for the Arts”. They will test the economic
impact of cultural and performing art centers as well as new visual arts initiatives. They've responded to
commissions for Concord and for Portsmouth as they have for dozens of other cities across America. On
average they’ve been able to measure 15 to 20 percent growth in the first 4 to 5 years of a creation of a new
center. A new source of interest in the arts and culture. So that’s a statistical | think support for you to
consider in this sort of initiative.

We are interested more specifically in some kind of partnership around this performing arts center. From the
Currier Museum, we are not primarily a performing arts organization as you know. We're an art museum. We
have a collection. We have good connections with artists with curators in the region and around the world. A
space in this performing arts center lends what | think a kind of critical mass to an interesting culture so that
when people attend a convention, or performance, or some kind of event there’s also a visual arts component.
A special gallery. | think this is a model that’s worked in many places around the country. It’s something that
you might consider as well.

Now what's in it for us as the Currier Museum you might ask? We see ourselves as the State museum of art
and we’re quite clear that our mission is to serve not Manchester and not even the area around Manchester
but all of the State of New Hampshire. So when an initiative as imaginative and as impactful as the one that
you’re considering comes up, we think that we need to be involved. That involvement has to be worked out.
The details are not set in stone. It’s not fully funded but we imagine or at least we can dream that a small
gallery based on commissions, creating works of art and displays that are relevant to the City of Nashua that
will draw upon schools and the other charities in town, and would really build on the work that we already do in
this region. At the moment, every 4" grader in the Nashua Public School system visits the Currier Museum.
How wonderful would it be for them to visit also an exhibition in the new performing arts center here?

So regardless of our involvement which we are quite keen on, we think this is a great idea and we applaud it.
Raising the culture and artistic profile of a city like Nashua can only benefit the entire State and the entire
region. So we wish you luck in your deliberations. Bear in mind that we at the Currier Museum are very keen
to be closely involved in a true partnership with the City of Nashua in this particular endeavor. Thank you.

Alderman Cookson

Could you give us your name and address?

Alan Chong
I’m Alan Chong. I’m at the Currier Museum, 150 Ash Street, Manchester, NH 03104.

Cheryl Linder, 9 Stoneybrook Road

I’m President of Great American Downtown Board of Directors and I’m also the Assistant General Manager of
the Nashua Silver Knights. I’m asking the Board to be proactive in this decision. Every year Nashua is losing
out to other towns and cities in New Hampshire that have an art center like this. We’re only hurting ourselves
as a city to continually stand by and watch from afar as other cities reap the benefits of what we could have
and should have been doing for a long, long time.

This center can be a place that promotes a cooperative spirit. It is a common ground for so many of us. It can
be a place that grows community and encourages volunteerism. A place that creates opportunities in Nashua
and for Nashua. Breathing new energy into downtown will encourage a wave of positivity both financially and
culturally. It will be a source of pride in our city. Once you are here, you'll want to return. | said this at the
previous meeting a couple of weeks ago but | would like to reiterate it tonight. Whether you are a fan of the
arts or not, an art support or not, the center is not just about arts. This project represents the future of Nashua.
Which way will you take us? Down the path of the same old same old? Why that may not be the comfortable
thing to do right now, this will not be the catalyst that we need to improve quality of life in Nashua. Be brave,
be bold, take the bold path, the unknown path, the let’s see what happens path. It is an adventure that so