Section I. Abbreviations

TM 5-814-9

GLOSSARY

SECTION I. ABBREVIATIONS

A

-- surface area as used to determine storm drainage

Q5

-- NudF5 rate from flusher nozzles in prewash).

flow.

Q6

-- Nt2Ft2 (flow rate from flusher nozzles in wash

B

-- number of times a bath is filled from the water

stations).

supply basin per wash period.

Q7

-- NintFint (flow rate from nozzles at interior wash

BOD

-- biochemical oxygen demand.

stations).

C

-- runoff coefficient used in determining storm

Q8

-- NyFy (flow rate from nozzles at yard hydrants).

drainage flow.

Q9

-- CpI Ap (stormwater flow rate from the Rational

CVWF -- Central vehicle wash facility.

Method on paved area).

D

-- drain time for the bath(s) at a CVWF.

Q10

-- CbI Ab (stormwater flow rate from Rational

Method on basins).

EPA

-- Environmental Protection Agency.

Qover

-- overflow rate; average rate of wash water flow

Fc

-- climatic factor.

into a sediment basin.

F(i)

-- flow rate location.

Si

-- soiling index.

gpm

-- gallons per minute.

St

-- soil type number.

i

-- demand location.

SS

-- suspended solids.

I

-- rainfall intensity of design storm (10-year, 1-hour

TDS

-- total dissolved solids.

storm).

TMP

-- transportation motor pool.

K

-- cleanup time.

Ts

-- length of design storm.

Lpm

-- liters per minute.

Tt

-- wash period + cleanup (Tw + K).

mgL

-- milligrams per liter.

Tw

-- wash period.

mgd

-- million gallons per day.

Uf

-- usage factor.

Nint

-- number of interior wash nozzles.

V1

-- VB (volume treated from bath prewash).

NPDES -- National Pollutant Discharge Elimination System.

V2

-- Q2Tt (volume treated from nozzles in prewash).

Nwc

-- number of nozzles used in a prewash.

V3

-- Q3Tt (volume treated from nozzles at wash sta-

tions).

Nst

-- number of nozzles in a wash station.

V4

-- Q4K (volume treated from preparation area trench

Nt1

-- number of flusher nozzles used in trenches in the

flushers).

vehicle preparation area.

V5

-- Q5K (volume treated from bath prewash trench

Nt2

-- number of flusher nozzles in trenches in the wash

flushers).

stations.

-- Q7Tw (volume treated from washstation area trench

V6

Nud

-- number of flusher nozzles in u-drains in the

flushers).

prewash.

-- Q7Tw (volume treated from interior wash stations).

V7

Ny

-- number of yard hydrants.

-- Q8K (volume treated from yard hydrants).

V8

pH

-- hydrogen ion concentration.

-- Q9T8 (volume treated from stormwater).

V9

Q

-- volume per unit time of flow.

Vavg

-- average volume.

Q1

-- VB/D (flow rate from bath drainage).

VB

-- volume of tracked bath, plus the volume of dual-

Q2

-- NwcFwc (flow rate from nozzles in prewash).

purpose bath.

Vmax

-- maximum volume.

Q3

-- NstFst (flow rate from nozzles at wash stations).

Vsed

-- sediment volume per year divided by number of

Q4

-- Nt1Ft1 (flow rate from flusher nozzles in prepara-

cleanings per year.

tion area).

Glossary-1