List of Typical Acronyms In
Environmental Impact Reports (EIR)
A / AAQS / Ambient Air Quality Standards
ac / acre(s), acreage
ac-ft/yr / acre-feet per year
ACOE / U.S. Army Corps of Engineers
ADA / Americans with Disabilities Act of 1990
ADT / Average Daily Traffic (Trips)
AIA / Airport Influence Area
ALUCP / San Diego County Airport Land Use Commission
ALUCP / Airport Land Use Compatibility Plan
amsl / above mean sea level
ANSI / American National Standards Institute
APCD / San Diego County Air Pollution Control District
APN / Assessor's Parcel Number
AQIA / Air Quality Impact Analysis
ASTM / American Society for Testing of Materials
ASTs / Aboveground Storage Tanks
B / BACM / Best Available Control Measures
BACT / Best Available Control Technology
BAT / Best Available Technology
BCT / Best Control Technology
bgs / below ground surface
BMO / Biological Mitigation Ordinance
BMP / Best Management Practice(s)
BOD / Biochemical Oxygen Demand
BO / Biological Opinion
BRCA / Biological Resource Core Area
C / CAA / Federal Clean Air Act
CAAQS / California Ambient Air Quality Standards
CALINE4 / California Line Source Dispersion Model
CALTRANS / California Department of Transportation
CalEPA / California Environmental Protection Agency
CAPCOA / California Air Pollution Control Officers' Association
CARB / California Air Resources Board
CBC / California Building Code
CC&Rs / Convenants, Conditions and Restrictions
CCR / California Code of Regulations
CDC / California Department of Conservation
CDF / California Department of Forestry and Fire Protection
CDFG / California Department of Fish & Game
CDMG / California Division of Mines & Geology
CDWR / California Department of Water Resources
CEQA / California Environmental Quality Act
CERCLA / Comprehensive Environmental Response, Compensation and Liability Act
CESA / California Endangered Species Act
cfm / cubic feet per minute
CFR / Code of Federal Regulations
cfs / cubic feet per second
CGS / California Geological Survey
CHP / California Highway Patrol
CIP / Community Improvement Program
CIWMB / County Integrated Waste Management Board
CIWMP / County of San Diego Integrated Waste Management Plan
CLUP / Comprehensive Land Use Plan
CMU / Concrete Masonry Unit
CMP / Congestion Management Program
CNEL / Community Noise Equivalent Level
CNPS / California Native Plant Society
CO / Carbon Monoxide
CO2 / Carbon Dioxide
COC / Constituents of Concern
COD / Chemical Oxygen Demand
CPUC / California Public Utilities Commission
CRHR / California Register of Historical Resources
CTMP / Community Trails Master Plan
CSS / Coastal Sage Scrub Vegetation
CWA / Federal Clean Water Act
c.y. / Cubic yards
D / dB / Decibel(s)
dBA / A-weighted sound level
DEH / Department of Environmental Health (San Diego County)
DHS / State Department of Health Services
DOT / United States Department of Transporation
DPLU / Department of Planning & Land Use (San Diego County)
DPM / Diesel Particular Matter
DPW / County of San Diego Department of Public Works
DTSC / California Department of Toxic Substances Control
du / (Number of) dwelling unit(s)
du/ac / (Number of) dwelling unit(s) per acre
DWR / California Department of Water Resources
E / EDUs / Equivalent dwelling units
EIR / Environmental Impact Report
EMFAC / Emission Factor (computer model)
EMF / Electromagnetic Field
EPA / Environmental Protection Ageny
ESA / Endangered Species Act
F / FAA / Federal Aviation Administration
FAHJ / Fire Authority Having Jurisdiction
Farmland / Prime Farmland, Unique Farmland or Farmland of Statewide Importance
FAZ / Flight Activity Zone
FEMA / Federal Emergency Management Agency
FESA / Federal Endangered Species Act
FHWA / Federal Highway Administration
FIRM / Flood Insurance Rate Map
FMMP / Farmland Mapping and Monitoring Program
FMZ / Fuel Modification Zone
FWPCA / Federal Water Pollution Control Act
G / GIS / Geographic Information Systems
GP2020 / San Diego County General Plan 2020
GPA / General Plan Amendment
gpd / gallons per day
gpm / gallons per minute
gpm/ft / gallons per minute/ per foot
GPS / Global Positioning Satellite
H / HA / Hydrologic Area
HAPs / Hazardous Air Pollutants
HARP / Hot Spots Analysis and Reporting Program
HCM / Highway Capacity Manual
HCP / Habitat Conservation Plan
HCS / Highway Capacity Software
HDPE / High Density polyethylene
HHW / Household Hazardous Waste
HHWE / Household Hazardous Waste Element
HIRT / Hazardous Incident Response Team
HLP / Habitat Loss Permit
HMP / Habitat Management Plan
HOA / Homeowners' Association
HP / Horsepower
HP-HRS / Horse Power-Hours
HRA / Health Risk Assessment
HSA / Hydrologic Subarea
HU / Hydrologic Unit
HVAC / Heating, Ventilation & Air Conditioning
HWEP / Hazardous Waste Exclusion Program
Hz / Hertz
I / I-8 / Interstate Highway 8
IFP / Integrated Facilities Plan
ILV / Intersecting Lane Vehicle
In/Out / Ratio of trips in to trips out
IOD / Irrevocable Offer to Dedicate
ITE / Institute of Transportation Engineers
ITS / Intelligent Transportation System
ISCT3 / Industrial Source Complex - Short Term Regulatory air Dispersion Model
J / JPA / Joint Power Authority
JTD / Joint Technical Document
L / LAFCO / Local Agency Formation Commission
LE / Land Evaluation
Leq / Time-average sound level
LESA / California Land Evaluation & Site Assessment
LEA / Local Enforcement Agency
LLC / Limited Liability Company
LOS / Level of Service
LPC / Light Pollution Code (County of San Diego)
M / MBTA / Migratory Bird Treaty Act
MCAS / Marine Corps Air Station
MCL / Maximum Contaminant Levels
MEP / Maximum Extent Practicable
MGD / Million Gallons per Day
mg/l / milligrams per liter
mg/m3 / Milligrams per cubic meter
mg/m3 / Micrograms per cubic meter
MHCP / Multiple Habitat Conservation Program
MHOSCP / Multiple Habitat Open Space Conservation & Program
min / minute(s)
MLS / Mass Loading Station
mm / millimeters
MM / Mitigation Measure
MMRP / Mitigation Monitoring and Reporting Program
MND / Mitigated Negative Declaration
mph / miles per hour
MRZ / Mineral Resource Zone
MSA / Major Statistical Areas
MSCP / Multiple Species Conservation Program
MSP / Master Specific Plan
MUP / Major Use Permit
MWD / Metropolitan Water District
N / NAAQS / National Ambient Air Quality Standards
NCCP / Natural Community Conservation Plan (California)
NHPA / National Historic Preservation Act
NO2 / Nitrogen Dioxide, Nitrite
NOx / Nitrogen Oxides
NO3 / Nittrate
NOx / Nitrogen Oxides
NOC / Notice of Completion
NOD / Notice of Determination
NOI / Notice of Intent
NOP / Notice of Preparation
NPDES / National Pollution Discharge Elimination System
NPDWRs / National Primary Drinking Water Regulations
NPPA / Native Plant Protection Act
NPS / National Park Service
NRCS / Natural Resources Conservation Service
NSA / Noise Sensitive Area
O / O3 / Ozone
OEHHA / Office of Environmental Health Hazard Assessment (USEPA)
OFFROAD / California Air Resources Board Off-Road Emission Inventory Model
OHWM / Ordinary High Water Mark
ORV / Off-Road Vehicle
OSE / Open Spance Easement
OSWER / Office of Solid Waste and Emergency Response (USEPA)
P / PAA / Plan Amendment Authorization
PAMA / Pre-Approved Mitigation Area
PCBs / Polychlorinated Biphenyls
PCE / Passenger Car Equivalents
PDP / Private Development Permit
PhD / Doctor of Philosophy
PM10 / Particulate matter smaller than 10 microns in diameter, respirable particulate matter
PM2.5 / Particulate matter smaller than 2.5 microns in diameter, fine particulate matter
ppm / parts per million
PRC / Public Resource Code
psi / pounds per square inch
PVC / Polyvinyl Chloride
Q / Q / Quantity of water flow
R / RAQS / Regional Air Quality Strategies
RARE / Rare, threatened or endangered species
RCA / Resource Conservation Area
RCP / Regional Comprehensive Plan
RCRA / Resource Conservation and Recovery Act
RGMS / Regional Growth Management Strategy
RMDZ / Recycling Market Development Zone
RMWD / Ramona Municipal Water District
ROCs / Reactive organic compounds
ROG / Reactive organic Gas
ROW / Right-of-Way
RPO / Resource Protection Ordinance
RTP / Regional Transportation Plan
RTIP / Regional Transportation Improvement Plan
RWQCB / California Regional Water Quality Control Board
S / SA / Site Assessment
SAA / Streambed Alteration Agreement
SANDAG / San Diego Association of Governments
SANGIS / San Diego Geographic Information Systems
SANTEC / San Diego Traffic Engineers' Council
SCAQMD / South Coast Air Quality Management District
SCS / Soil Conservation Service
SEIR / Subsequent/Supplemental Environmental Impact Report
SDAB / San Diego Air Basin
SDAPCD / San Diego Air Pollution Control District
SDCWA / San Diego County Water Authority
SDG&E / San Diego Gas & Electric
sec. / second(s)
s.f. / square foot, square feet
SIP / State Implementation Plan
SMP / Stormwater Maintenance Plan
SO2 / Sulfur Dioxide, sulfite
SOx / Sulfur Oxides
SO4 / Sulfate
SP / Specific Plan
SPA / Specific Plan Amendment
SR / State Route
SRA / State Responsibility Area
SRRE / Source Reduction & Recycling Element
SSA / Special Study Area
SUSMP / Standard Urban Storm Water Mitigation Plan
SUV / Sport Utility Vehicle
SWF / Solid Waste Facility
SWMP / Stormwater Management Plan
SWMPP / Stormwater Pollution Prevention Plan
SWRCB / State Water Resources Control Board
T / TACs / Toxic Air Contaminants
T-BACT / Toxics Best Available Control Technology
TDS / Totally Dissolved Soils
TIF / Transporation Infrastructure Development Fee
TIS / Traffic Impact Stude
TMDL / Total Maximum Daily Load
TOC / Total Organic Carbon
tons/yr / tons per year
TP / Total phosphorus
tpd / tons per day
TPM / Tentative Parcel Map
tpy / tons per year
TSS / Total Suspended Solids
U / UBC / Uniform Building Code
URBEMIS / Urban Emissions Model
URDS / Urban Runoff Diversion System
URMP / Urban Runoff Management Program
USACOE / United States Army Corps of Engineers
USDA / United States Department of Agriculture
USEPA / United States Environmental Protection Agency
USFS / United States Forest Service
USFWS / United States Fish & Wildlife Service
USGS / United States Geological Survey
USTs / Underground Storage Tanks
V / V/C / Volume-to-Capacity ratio
VMT / Vehicle Miles Traveled
VOCs / Volatile organic compounds
W / WDR / Waste Discharge Requirement
WILD / Wildlife Habitat
WPO / Watershed Protection, Stormwater Management, and Discharge Control Ordinance
WURMP(s) / Watershed Urban Runoff Management Program(s)
Z / ZOI / Zone of Influence
Symbols / 2-M / Two-Lane major roadway
4-M / Four-Lane major roadway
D ADT / Change in ADT (average daily trips)
D AM Delay / Change in delay during the AM peak period
D PM Delay / Change in delay during the PM peak period
D V/C / Change in V/C (Volume-to-Capacity ratio)
D Delay / Change in delay