Finance Committee

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

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:

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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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

38

Outfall Reconnaissance Inventory/Sample Collection Field Sheet

Section 1: Background Data

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

TABLE 2-1:
LAND USES, LIKELY SOURCE LOCATIONS AND ACTIVITIES THAT CAN PRODUCE TRANSITORY OR INTERMITTENT ILLICIT
DISCHARGES
Land Use Likely Source Locations Condition or Activity that Produces Discharge
Residential @ Apartments @ Driveway cleaning
$ Multi-family # Dumping/spills (e.g., leaf litter and RV/boat holding tank
@ Single family detached effluent)
¢@ Equipment/vehicle wash-downs
@ Septic system maintenance
@ Swimming pool discharges
Commercial @ Campgrounds/RV parks @ Building maintenance (power washing)

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Northeast
Regional Mercury
TMDL

Spit Brook NHRIV700061206-16 Mercury (4A-M) Northeast
Regional Mercury
TMDL

Merrimack River NHRIV700061206-24 Chlorophyll-a (5-M), E. Coli New Hampshire
(4A-M), Aluminum (5-M), Statewide

pH (5-M), Mercury (4A-M) Bacteria TMDL,
Northeast
Regional Mercury
TMDL

Unnamed Brook NHRIV700061206-28 Mercury (4A-M) Northeast
Regional Mercury
TMDL

34

03

Regional Mercury
TMDL

Lovewell Pond

NHLAK700061201-01

Mercury (4A-M)

Northeast
Regional Mercury
TMDL

Lyle Reed Brook

NHRIV700040402-04

Mercury (4A-M)

Northeast
Regional Mercury
TMDL

Unnamed Brook to
Nashua River

NHRIV700040402-07

Mercury (4A-M)

Northeast

Regional Mercury
TMDL

Nashua River

NHRIV700040402-08

E. Coli (4A-P), Non-native
aquatic plants (4C-P),
Mercury (4A-M)

LIST OF IMPAIRED WATERS

Nashua, New Hampshire

33

Impairment(s) and Associated
Water Body Name Segment ID Category Approved TMDL
Nashua River — Mine Falls |» NHIMP700040402-02 Dissolved oxygen saturation | Northeast

Dam Pond

(5-P), pH (5-M), Non-native
aquatic plants (4C-M),
Mercury (4A-M),
Cyanobacteria hepatotoxic
microcystins (5-M)

Regional Mercury
TMDL

Nashua River — Nashua
Canal Dike

NHIMP700040402-03