UNITED STATES ENVIRONMENTAL PROTECTION AGENCY DESIGN VALUE REPORT Dec. 24, 2014 Report Request ID: 1281047 Report Code: AMP480

Selection Criteria Page 1 User ID: HXN

State County City Site Parameter POC AQCR UAR CBSA CSA EPA Region 24 24 24 24 24 003

005 025 510 013 GEOGRAPHIC SELECTIONS

PROTOCOL SELECTIONS Parameter Classification Parameter Method Duration DESIGN VALUE 44201

SELECTED OPTIONS SINGLE EVENT PROCESSING WORKFILE DELIMITER USER SITE METADATA MERGE PDF FILES QUARTERLY DATA IN WORKFILE

AGENCY ROLE Option Type Option Value EXCLUDE REGIONALLY CONCURRED EVENTS

, STREET ADDRESS YES NO PQAO DATE CRITERIA 2014 Start Date End Date 2014 Tribal Code

APPLICABLE STANDARDS Standard Description Ozone 8-Hour 2008UNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM PRELIMINARY DESIGN VALUE REPORT Report Date: Dec. 24, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis. 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*'). Page 1 of 2 

### Pollutant: Standard Units: .075 Level: Ozone 8-Hour 2008 NAAQS Standard: Annual 4th Maximum Statistic:

1 1 1 1 1 1 1 Poc 214 191 212 213 213 204 201 Valid Days 100

89 99 100 100 95 94 Percent Complete .066

.067 .068 .064 .067 .070 .060 4th Max Y

Y Y Y Y Y Y Cert& Eval 204

210 210 209 211 205 183 Valid Days 95

98 98 98 99 96 86 Percent Complete .071

.068 .067 .068 .072 .068 .063 4th Max Y

Y Y Y Y Y Y Cert& Eval 207

209 212 212 202 207 197 Valid Days 97

98 99 99 94 97 92 Percent Complete .087

.082 .083 .075 .086 .083 .071 4th Max Y

Y Y Y Y Y Y Cert& Eval 97

95 99 99 98 96 90 Percent Complete .074

.072 .072 .069 .075 .073 .064 Design Value Y

Y Y Y Y Y Y D. V. Validity 

### Ozone(44201) Parts per million(007)

Site ID | | | | | | | | | | | | 24-003-0014 24-005-1007 24-005-3001 24-013-0001 24-025-1001 24-025-9001 24-510-0054 

### REPORT EXCLUDES MEASUREMENTS WITH REGIONALLY CONCURRED EVENT FLAGS. Design Value Year: 2014

STREET ADDRESS 2013 2012 

### Maryland State: Davidsonville Recreation Center, 3801 Queen Anne Bridge Road Padonia Elementary School, 9834 Greenside Drive 600 Dorsey Avenue 1300 W. Old Liberty Road Edgewood Chemical Biological Center (APG), Waehli Road 3560 Aldino Road Furley E.S. Recreational Center, 4633 Furley Avenue. 2014 3 - YearUNITED STATES ENVIRONMENTAL PROTECTION AGENCY AIR QUALITY SYSTEM PRELIMINARY DESIGN VALUE REPORT Report Date: Dec. 24, 2014

Notes: 1. Computed design values are a snapshot of the data at the time the report was run (may not be all data for year). 2. Some PM2.5 24-hour DVs for incomplete data that are marked invalid here may be marked valid in the Official report due to additional analysis. 3. Annual Values not meeting completeness criteria are marked with an asterisk ('*'). Page 2 of 2 M N

S

U

X Y The monitoring organization has revised data from this monitor since the

most recent certification letter received from the state. The certifying agency has submitted the certification letter and required summary reports, but the certifying agency and/or EPA has determined that issues regarding the quality of the ambient concentration data cannot be resolved due to data completeness, the lack of performed quality assurance checks or the results of uncertainty statistics shown in the AMP255 report or the certification and quality assurance report. The certifying agency has submitted the certification letter and required summary reports. A value of "S" conveys no Regional assessment regarding data quality per se. This flag will remain until the Region provides an "N" or "Y" concurrence flag. Uncertified. The certifying agency did not submit a required certification letter and summary reports for this monitor even though the due date has passed, or the state's certification letter specifically did not apply the certification to this monitor. Certification is not required by 40 CFR 58.15 and no conditions apply to be the basis for assigning another flag value The certifying agency has submitted a certification letter, and EPA has no unresolved reservations about data quality (after reviewing the letter, the attached summary reports, the amount of quality assurance data submitted to AQS, the quality statistics, and the highest reported concentrations). MEANING CERTIFICATION EVALUATION AND CONCURRENCE FLAG MEANINGS FLAG