NEW HAMPSHIRE CODE OF ADMlNISTRA TIVE RULES 

c. Following the measurements taken, a second calibration check shall be performed; 

d. If the difference between the first calibration and the second calibration exceeds 5% 

opacity, the opacity measurement shall be repeated; and 

e. All calibrations shall be documented. 

Source. #7788, eff 10-31-02 

Env-A 807.04 Testing Requirements for Diesel Engines in Motor Vehicles. The owner or operator of 

a diesel engine in a motor vehicle shall determine compliance with Env-A 1101.03 by following the Society 

of Automotive Engineers (SAE) snap-acceleration smoke test procedure J1667, published in 1996. 

Source. #7788, eff 10-31-02 

Env-A 807.05 Determination of Opacity of Fugitive Emissions. The owner or operator shall conduct 

measurements of the amount of time that any visible fugitive emissions occur during an observation period 

by following 40 CFR 60, Appendix A, Method 22 - Visual Determination of Fugitive Emissions from 

Material Sources and Smoke Emissions from Flares. 

Source. #7788, eff 10-31-02 

PART Env-A 808 CONTINUOUS EMISSION MONITORJNG 

Env-A 808.01 Definitions. For the purposes of this part, the following definitions shall apply: 

(a) "Calendar hour" means any 60-minute period commencing on the hour; 

(b) "Facility operating hour" means, for purposes of calculating data availability pursuant to Env-A 

808.10, 42 minutes of facility operation during a calendar hour; 

(c) "Facility operation" means one of the following: 

(1) For a steam generating unit that is required by this part to have a continuous emission 

monitoring (CEM) system installed, a time period during which any fuel is being combusted in 

the device; or 

(2) For any other facility that is required by this part to have a CEM system installed, a time 

period during which any material is being processed which contributes to the emissions 

monitored by the CEM system; 

(d) "Ga~eous excess emission" means: 

(1) A CEM system measurement of any of the gases listed in Env-A 808.01(e), above the 

emission limit specified in any applicable state or federal standard, based on the averaging time 

specified in that standard; 

(2) A CEM system measurement of any of the gases listed in Env-A 808.01(e), above the 

emission limit specified in any facility permit issued by the division, based on the averaging time 

specified in the permit; or 

(3) If neither (1) or (2), above, is applicable, a CEM system measurement of any of the gases 

listed in Env-A 808.01(e), above any emission limit to which the facility is subject, averaged 

over a 24-hour period; 

30 Env-A 800 
NEW HAMPSHIRE CODE OF ADMINISTRATIVE RULES 

(e) "Gaseous measuring CEM system" means a CEM system that measures concentrations of 

ammonia (NH3), carbon monoxide (CO), sulfur dioxide (S02), NOx, total reduced sulfur (TRS), hydrogen 

chloride (HCl), diluent gas, such as oxygen (02) or carbon dioxide (C02), or VOC; 

(f) "Opacity excess emission" means any consecutive 6-minute or 60-minute period, or aggregate 60-

minute period of opacity measurement, averaged. in accordance with Env-A 80&.03 (b), which exceeds any 

standards for visible emissions specified in Env-A 1900 through Env-A 2900, excluding any exempted 

periods specified in Env-A 2000; 

(g) "Out of control period" means: 

(1) For a CEM system measuring gaseous emissions: 

a. The time period beginning with the completion of the daily calibration drift check where 

the calibration drift (CD), as calculated pursuant to 40 CFR 60.13(d)(l), has exceeded twice 

the allowable limit for 5 consecutive days and ending with the CD check following 

corrective action that results in the CD being within the allowable CD limit; 

b. The time period beginning with the completion of a daily CD check preceding the daily 

CD check that results in the CD being greater than 4 times the allowable limit and ending 

with the CD check following corrective action that results in the CD being within the 

allowable CD limit; or 

c. The time period beginning with the completion of a relative accuracy test audit (RAT A), 

cylinder gas audit (CGA), or relative accuracy audit (RAA) as defined in 40 CFR 60, 

Appendix F, where the CEM system fails the accuracy criteria established and ending with 

successful completion of the same audit where the CEM system meets the accuracy criteria 

established after corrective action has occurred; and 

(2) For a CEM system measuring opacity: 

a. The time period beginning with the completion of the daily calibration drift check where 

the CD exceeds 2% opacity for 5 consecutive days, and ending with the CD check after 

corrective action has occurred that results in the performance specification drift limits being 

met; 

b. The time period beginning with the completion of a daily CD check preceding the daily 

CD check that results in the CD being greater than 5% opacity and ending with the CD 

check after corrective action has occurred that results in the performance specification drift 

limits being met; or 

c. The time period beginning with the completion of a quarterly opacity audit where the 

CEM system fails the calibration error test as specified in 40 CFR 60, Appendix B, 

Specification 1 and ending with successful completion of the same audit where the CEM 

system passes the calibration error test established after corrective action has occurred; 

(h) "Time-shared system" means a gaseous CEM system that measures the pollutant concentration of 

more than one gas stream; and 

(i) "Valid hour ofCEM emission data" means one of the following: 

31 Env-A 800 
NEW HAMPSHIRE CODE OF ADMINISTRATIVE RULES 

( 1) A minimum of 42 minutes of CEM readings taken in any calendar hour, during which time 

the CEM is not in an out of control period as defined in Env-A 808.0l(g), and the facility on 

which the CEM is installed is in operation; or 

(2) For time-shared systems, 75% collection of gaseous CEM concentration readings of the total 

sampling time available for each emission point being monitored for those periods of time the 

CEM is not in an out of control period as defined by Env-A 808.0l(g), and the facility on which 

the CEM is installed is in operation. 

Env-A 808.02 Applicability. 

Source. (See Revision Note at chapter heading for Env-A 

800) #5505 eff 11-15-92; renumbered by #6057-B (formerly 

Env-A 807), EXPIRED: 11-15-98 

New. #6893, INTERIM, eff 11-26-98, EXPIRED: 3-26-99 

New. #7788, eff 10-31-02 

(a) The owner or operator of a stationary source shall install, operate, maintain, and perform quality 

assurance testing of a CEM system meeting all of the requirements specified in this part for a stationary 

source if any of the following conditions exists: 

(I) A source is subject to the New Source Performance Standards, 40 CFR 60, National 

Emission Standards for Hazardous Air Pollutants, 40 CFR 61 or 40 CFR 63, or Continuous 

Emission Monitoring, 40 CFR 75, which requires the source to comply with a specified opacity 

or emission limit and to install a specified CEM system; 

(2) The owner or operator of a source chooses to limit its potential to emit by accepting 

federally enforceable permit conditions that restrict its hours of operation, the type or amount of 

material combusted, stored, or processed, or its level of production, and continuous emission 

monitoring is determined by the division to be necessary to ensure that these permit conditions 

are not violated; 

(3) A source uses air pollution control equipment in order to maintain compliance with an 

opacity or emission limit, and continuous emission monitoring is determined by the division to 

be necessary in order to ensure that this limit is not exceeded and that the control equipment is 

performing correctly; 

( 4) Documented and repeated violation of any of the applicable opacity or emission limits 

specified in other provisions of Env-A 300 et seq., has occurred and the installation of a CEM 

system is feasible; 

(5) Documented and repeated violation of any of the National Ambient Air Quality Standards 

(NAAQS) specified in Env-A 300 has occurred, the source is determined by the division to be a 

major contributor to the violation, and the installation of a CEM system is feasible; or 

(6) By following the procedures specified in 40 CFR 51, Appendix W, the division determines 

that a source's emissions have a significant impact on air quality and continuous monitoring of 

emissions with a CEM system is necessary to ensure that the ambient air quality standards are 

achieved and maintained. 

32 Env-A 800 
NEW HAMPSHIRE CODE OF ADMINISTRATIVE RULES 

(b) A stationary source subject to the continuous emission monitoring requirements specified in 40 

CFR 51, Appendix P, as amended at 51 FR 40675, November 7, 1986, shall install, calibrate, operate, and 

maintain a CEM system in accordance with all requirements set forth and referenced therein. 

(c) A facility subject to both this part and the emission monitoring requirements ofEnv-A 3200 shall 

comply with: 

(I) The NOx monitoring requirements as described in Env-A 3200; 

(2) The minimum percentage data availability requirements as described in Env-A 808.10(a) -

(d); and 

(3) The data reporting requirements as described in Env-A 808.12 or Env-A 808.13, as 

applicable. 

Source. #7788, eff 10-31-02 

Env-A 808.03 Minimum Specifications for CEM Systems. A CEM system installed after August 31, 

1989, shall meet the following minimum specifications: 

(a) A CEM system for measuring gaseous emissions shall average and record the data for each 

calendar hour; 

(b) A CEM system for measuring opacity emissions shall: 

(1) Average the opacity data to result in consecutive, non-overlapping 6-minute averages; and 

(2) If subject to the exemption of Env-A 2003 .04(b ), total the number of minutes in any 8-hour 

period where the opacity, as averaged in non-overlapping 6-minute periods, exceeds the 

applicable opacity standard; 

(c) All CEM systems, opacity and gaseous measuring included, shall; 

(I) Include a means to display instantaneous values of percent opacity and gaseous emission 

concentrations; and 

(2) Complete a minimum of one cycle of operation, which shall include measurement, 

analyzing, and data recording for each successive 5-minute period for systems measuring 

gaseous emissions and each 10-second period for systems measuring opacity, unless a longer 

time period is approved in accordance with Env-A 809; 

(d) A stack volumetric flow measuring device required to be installed after January l, 1992, shall 

meet the following requirements: 

(1) All differential pressure flow monitors shall have an automatic blow-back purge system 

installed and, in wet stack conditions, shall have the capability for drainage of the sensing lines; 

and 

(2) The stack flow monitoring system shall have the capability for manual calibration of the 

transducer while the system is on-line and for a zero check; and 

(e) Alternatives to in-stack flow monitoring devices for determination of stack volumetric flow rate 

may be used if the owner or operator provides the division with technjcal justification that the alternative can 

meet the same requirements for data availability, data accuracy, and quality assurance as an in-stack device. 

33 Env-A 800 
NEW HAMPSHIRE CODE OF ADMINISTRATIVE RULES 

Source. #7788, eff I 0-31-02 

Env-A 808.04 CEM Monitoring Plan. 

(a) An owner or operator of a source subject to the requirements of this part and required to install, 

operate, and maintain a CEM system shall submit to the division, at least 90 days prior to the installation of 

the CEM system, a CEM monitoring plan describing the system. 

(b) Upon receipt of the CEM monitoring plan, the division shall: 

(1) Review the plan for compliance with all the elements described in this section; 

(2) Determine whether the CEM meets all the requirements of this part; and 

(3) Issue its decision within 30 days. 

(c) The monitoring plan shall provide the following: 

(I) A complete description of the emission monitoring system including, but not limited to: 

a. The identity of·the CEM system vendor, including the company name, address, and 

telephone number; 

b. The identity of the manufacturer, model number, measurement method employed, and 

range of each of the major components or analyzers being used; 

c. A description of the sample gas conditioning system; 

d. A description and diagram showing the location of the monitoring system, including 

sampling probes, sample lines, conditioning system, analyzers, and data acquisition system; 

and 

e. A description of the data acquisition system, including sampling frequency, and data 

averaging methods; 

(2) The mathematical equations used by the data acquisition system, including the value and 

derivation of any constants, to calculate the emissions in terms of the applicable emission 

standards; 

(3) An example of the data reporting format; 

(4) A description of th.e instrument calibration methods,. including the frequency of calibration 

checks and manual calibrations, and path of the sample gas through the system; 

(5) The means used by the data acquisition system of determining and reporting periods of 

excess emissions, monitor downtime, and out-of-control periods; and 

(6) A description of the meart{ used to provide for short-term and long-term emissions data 

storage. 

Source. #7788, eff I 0-31-02 

34 Env-A 800 
NEW HAMPSH1RE CODE OF ADMINISTRATIVE RULES 

Env-A 808.05 Performance Specification Testing. The owner or operator of a facility shall conduct 

performance specification testing for a CEM system installed after August 31, 1989, in accordance with the 

following: 

(a) For a CEM system monitoring opacity or gaseous emissions, the performance specification 

requirements of 40 CFR 60, Appendix B, shall apply; 

(b) For an opacity monitoring system, the calibration error test specified in 40 CFR 60, Appendix B, 

Performance Specification 1, paragraph 7 .1.4, shall be performed with the monitor installed on the stack or 

duct that is to be the permanent location for the monitor; 

(c) All performance specification testing shall be conducted within 180 days of the CEM equipment 

initial startup; 

(d) The division shall be notified of the date or dates of the performance specification testing at least 

30 days prior to the scheduled dates; and 

(e) A written report summarizing the results of the testing shall be submitted to the division within 30 

days of the completion of the test. 

Source. #7788, eff 10-31-02 

Env-A 808.06 Quality Assurance/Quality Control Plan Requirements. 

(a) The owner or operator of a source required by this part to install, operate, and maintain an opacity 

or gaseous CEM system shall: 

(1) Prepare a quality assurance/quality control (QNQC) plan, which shall contain written 

procedures for implementation of its QA/QC program for each CEM system; 

(2) File the QA/QC plan with the division no later than the time specified in Eiw-A 808.05(e) 

after the initial startup of each CEM system; 

(3) Review the QA/QC plan and all data generated by its implementation at least once each 

year; 

(4) Revise or update the QA/QC plan, as necessary, based on the results of the annual review, 

by: 

a. Documenting any changes made to the CEM or changes to any information provided in 

the monitoring plan; 

b. Including a schedule of, and describing, all maintenance activities that are required by 

the CEM manufacturer or that might have an effect on the operation of the system; 

c. Describing how the audits and testing required by this part will be performed; and 

d. Including examples of the reports that will be used to document the audits and tests 

required by this part; 

(5) Make the revised QNQC plan available for on-site review by the division at any time; and 

35 Env-A 800 
NEW HAMPSHIRE CODE OF ADMINlSTRATIVE RULES 

(6) Within 30 days of completion of the annual QA/QC plan review, certify in writing that the 

owner or operator will continue to implement the source's existing QA/QC plan or submit in 

writing any changes to the plan and the reasons for each change; 

(b) The division shall request revision of the QA/QC plan if the results of emission report reviews, 

inspections, audits, review of the QA/QC plan, or any other information available to the division show that 

the plan does not meet the criteria specified in 40 CFR 60, Appendix F, Procedure I, section 3; and 

(c) The QA/QC plan shall be considered an update to the CEM monitoring plan required by Env-A 

808.04. 

Source. #7788, eff 10-31-02 

Env-A 808.07 General Audit Requirements for All CEM Systems. 

(a) Required quarterly audits shall be done anytime during each calendar quarter, but successive 

quarterly audits shall occur no more than 4 months apart. 

. (b) Within 30 calendar days following the end of each quarter, the owner or operator of the source 

shall submit to the division a written summary report of the results of all required audits that were performed 

in that quarter, in accordance with the following: 

(1) For gaseous CEM audits, the report format shall conform to that presented in 40 CFR 60, 

Appendix F, Procedure 1, section 7; and 

(2) For opacity CEM audits, the report format shall conform to that presented in EPA-600/8-87-

025, April 1992, "Technical Assistance Document: Performance Audit Procedures for Opacity 

Monitors". 

(c) The owner or operator of a source shall notify the division at least 30 days prior to the 

performance of a RAT A. 

(d) The division shall require the rescheduling of any RAT A if the staff necessary to observe the audit 

are not available. 

(e) The owner or operator of a source shall provide at least 2 weeks' notice prior to any other planned 

audit or test procedure. 

Source. #7788, eff 10-31-02 

Env-A 808.08 Audit Requirements for Gaseous CEM Systems. 

(a) For a system monitoring gaseous emissions of S02, NOx, CO, TRS, H2S, VOC, 0 2 or C02, the 

quality assurance requirements and procedures described in 40 CFR 60, Appendix F, shall apply, with the 

following additions and clarifications for Procedure 1 of Appendix F: 

(1) The owner or operator shall inform the division of all out of control periods, as defined in 

Appendix F, section 4.3, and Env-A 808.0l(g), in the emission reports required pursuant to EnvA 808.11; 

(2) The owner or operator may perform a RAA, as defined in 40 CFR 60, Appendix F, in place 

of a CGA; and 

36 Env-A 800 
NEW HAMPSHIRE CODE OF ADMINISTRATIVE RULES 

(3) For CEM systems where CGA audits cannot be performed, the owner or operator shall 

perform RAA audits in place of the CGA; 

(b) The owner or operator of a CEM system that monitors gaseous emissions other than S02, NOx, 

CO, TRS, H2S, VOC, 0 2 or C02 shall: 

(1) Request in writing pursuant to Env-A 809 division approval of proposed audit procedures; 

(2) Demonstrate that such procedures are consistent with those presented in 40 CFR 60, 

Appendix Band Appendix F; and 

(3) Upon receiving approval by the director of the proposed audit procedures pursuant to Env-A 

809, implement such procedures. 

(c) For a time-shared gaseous CEM system, the owner or operator shall perform the following audits: 

( 1) An annual RAT A to check the analyzer at any sampling point; and 

(2) CGAs or RAAs at all sampling points for each of the remaining 3 quarterly audits. 

(d) The owner or operator of a stationary source determining compliance with a mass flow emissions 

limit by using a stack flow volumetric monitor or a fuel flow meter with 0 2/C02 measurements to calculate 

heat input or stack flow rate, shall conduct annually a minimum 9-run RATA with the relative accuracy 

calculated in the units of the mass emissions measurement as specified in 40 CFR 60, Appendices Band F. 

(e) In lieu of (d) above, the owner or operator of a stationary source using a fuel flow meter that meets 

the certification requirements of 40 CFR 75, Appendix D, may conduct the annual minimum 9-run RATA, as 

specified in 40 CFR 60, Appendix B, as follows: 

(I) The RATA shall be performed on: 

a. The pollutant concentration in parts per million or pollutant pounds per million BTU; 

and 

b. The 02/C02 diluent percentage; and 

(2) The relative accuracy requirements shall be: 

a. As specified in 40 CFR 60, Appendix B, 40 CFR 75, or ±I ppm for the pollutant, as 

applicable; and 

b. As specified in 40 CFR 60, Appendix B, or 40 CFR 75, as applicable, for the percentage 

02/C02. 

(f) For a stationary source subject to (d) above, and using a stack volumetric flow monitor for the 

mass flow emissions calculation, the owner or operator of such source shall also perform one of the 

following audit options: 

(1) An audit that shall consist of: 

a. A 3-run RAA, which shall be conducted in 2 of the calendar quarters in which the 

RATA specified in (d) is not conducted: 

1. To determine the percentage accuracy of the ·source's stack flowrate measurement 

method; and 

37 Env-A 800 
NEW HAMPSHIRE CODE OF ADMINJSTRATIVE RULES 

2. To compare the source's method of determining stack flowrate against the 

compliance method of measuring the stack flowrate, as follows: 

(i) A velocity traverse shall be conducted following Methods I and 2 of 40 CFR 

60, Appendix A; 

(ii) A calculation of average wet standard cubic feet per hour shall be measured 

for each run using a stack gas molecular weight and percent stack moisture from 

either the stack flow monitor or the most recent Methods 3 and 4 measurement 

made at the subject source; 

(iii) A leak check shall be performed after completion of the velocity traverse· in 

accordance with 40 CFR 60, Appendix A, Method 2, part 3.1; 

(iv) The thermocouple used for measurement of stack gas temperature shall be 

calibrated annually; 

(v) Steps (i) through (iii) shall be repeated 2 more times to result m 3 

compliance measurements of the stack volumetric flowrate; 

(vi) A percentage accuracy calculation shall be performed as follows: 

i. "WSCFH, CEM" means the 3-run average of the wet standard cubic feet 

per hour flow rate as determined by the stack flow monitor method; 

ii. "WSCFH, M2" means the 3-run average of the wet standard cubic feet 

per hour as measured by the Method 1 and Method 2 procedures; 

iii. To calculate the percentage accuracy of the monitor, the owner or 

operator shall calculate the difference between WSCFH, CEM and 

WSCFH, M2, divide the difference by the value of WSCFH, M2, and then 

multiply the result by 100, as in the formula below: 

%Accuracy = ((WSCFH,CEM- WSCFH,M2)/(WSCFH,M2)) x 100 

(vii) The absolute value of percentage accuracy shall be less than or equal to 

10.0% for the monitor to pass the audit; and 

(viii) If the percentage accuracy exceeds 1 0.0%, the monitor shall be considered 

"out of control" until necessary repairs/adjustments are performed to the system 

and the monitor successfully passes the percentage accuracy requirements, as 

determined by a repeat audit; and 

b. In the remaining quarter in which the RAT A specified in (d) and the RAA are not 

performed, a calibration of the transmitter or transducer, as applicable, of the stack flowrate 

or fuel flow monitor following the manufacturer's recommended calibration procedure; or 

(2) An audit, to be performed in each calendar quarter in which the RATA specified in (d) is not 

conducted, which shall consist of: · 

a. A flow monitor differential-pressure sensing lines' leak check for low and high-pressure 

sides; 

38 Env-A 800 
NEW HAMPSHIRE CODE OF ADMINISTRATIVE RULES 

b. A stack flow probe inspection, including removal and cleaning of the probe as 

necessary; 

c. A differential pressure transmitter/transducer calibration following the manufacturer's 

recommended calibration procedure; and 

d. A continuous flow-to-load-ratio or gross heat rate evaluation in accordance with 40 CFR 

75, Appendix B. 

(g) The owner or operator of a stationary source subject to (d) above, and using a fuel flow monitor 

for the mass flow emissions calculation, shall also perform one of the following audit options: 

(1) The quality assurance activities on the fuel flow monitor as specified in 40 CFR 75, 

Appendix D; or 

(2) The audit specified in (f)(1) above. 

Source. #7788, eff 10-31-02 

Env-A 808.09 Audit Requirements for Opacity CEM Systems. 

(a) The owner or operator of an opacity CEM system required to meet the criteria of 40 CFR 60, 

Appendix B, Specification 1, shall: 

(I) Perform quarterly audits with the monitor installed in its measurement location for the 

Calibration Error Test, in accordance with 40 CFR 60, Appendix B, Specification 1, section 

7.1.4, and for the System Response Test, in accordance with 40 CFR 60, Appendix B, 

Specification 1, section 7.1.5; 

(2) Use a minimum of 3 calibration attenuators, low, mid, and high, in the audits as specified in 

40 CFR 60, Appendix B, Specification 1, section 7.1.2.; 

(3) Check the values of the calibration attenuators used in the above audits at least once every 6 

months with one of the following: 

a. A spectrophotometer meeting the specifications of 40 CFR 60, Appendix B, 

Specification 1, section 3.4; or 

b. A secondary instrument as defined and described m 40 CFR 60, Appendix B, 

Specification 1, section 7 .1.3.; 

( 4) If the measured value of the calibration attenuator differs from the calibrated value by more 

than + 2% opacity, recalibrate or replace the calibration attenuator until the measured value 

does not differ from the calibrated value by more than+ 2% opacity; and 

(5) Perform and report an annual 7-day length zero/upscale drift test, as defined in 40 CFR 60, 

Appendix B, Specification 1, sections 7 .4.1 and 7 .4.2, to the division following the procedures 

set forth therein. 

(b) For a source with an opacity CEM system that is not subject to any subpart of 40 CFR 60, the 

owner or operator shall conduct quarterly audits as specified in (a) above, except that the selected span value, 

used for the selection of the attenuation values, shall be 40% opacity for those devices subject to a 20% 

opacity standard and 60% opacity for those devices subject to a 40% opacity standard. 

39 Env-A 800 
NEW HAMPSHIRE CODE OF ADMINISTRATIVE RULES 

(c) If written documentation is submitted to the division showing stability of the attenuator values, the 

division shall reduce the frequency of the attenuators check to once per year. 

Source. #7788, eff 10-31-02 

Env-A 808.10 Data Availability Requirements. 

(a) The owner or operator of a source with a CEM shall operate the CEM at all times during operation 

of the source, except for periods of CEM breakdown, repairs, calibration checks, preventive maintenance, 

and zero/span adjustments. 

(b) The percentage CEM data availability for opacity and all gaseous concentration monitors shall be 

maintained at a minimum of 90% on a calendar quarter basis. 

(c) The percentage CEM data availability for opacity and all gaseous concentration monitors shall be 

maintained at a minimum of 75% for any calendar month. 

(d) The percentage CEM data availability shall be calculated as follows: 

( 1) "VH" means the number of valid hours of CEM data in a given time period for which the 

data availability is being calculated when the plant is in operation; 

(2) "OH" means the number of facility operating hours during a given time period for which the 

data availability is being calculated; 

(3) "AH" means the number of hours during facility operation when the performance of 

quarterly audits as required by those procedures specified in Env-A 808.08 or Env-A 808.09, as 

applicable, require that the CEM be taken out of service in order to conduct the audit; 

(4) "Ca!DT" means the number of hours, not to exceed one hour per day, during facility 

operation when the CEM is not operating due to the performance of the daily CEM calibrations 

as required in 40 CFR 60, Appendix For 40 CFR 75, Appendix B, section 2.1.; and 

(5) To calculate the percentage CEM data availability, multiply the sum of VH and Ca!DT by 

100, and divide the result by the difference between OH and AH, as in the formula below: 

(VH + Ca/DT)xl 00 PercentageDataA vailability = ...:...._ ____ ..:.....__ (OH-AH) 

(e) If the percentage data availability requirements cannot be met for any calendar quarter, the owner 

or operator of the source shall: 

( 1) Submit a plan to the division within 30 days of the end of the quarter of failure to meet the 

data availability requir~ments specifying in detail the steps to be taken in order to meet the 

availability requirements for •'-1~> current quarter and future quarters; and 

(2) Implement the plan to mend of the quarter of failure . 

ie data availability requirements no later than 30 days after the 

. (f) If the percentage data availabti ~equirements cannot be met for any 2 consecutive calendar 

quarters, the owner or operator of the source hall: 

(1) Install a replacement CEM system meeting all of the requirements of 40 CFR 60, Appendix 

B, Specifications 1-6 in accordance with the following deadlines: 

40 Env-A 800 
NEW HAMPSHIRE CODE OF ADMINISTRATIVE RULES 

a. The replacement CEM system shall be installed and operational no later than 180 days 

following the end of the second quarter of failure to meet the data availability requirements; 

and 

b. Certification testing of the replacement CEM system shall be initiated no later than 210 

days following the end of the second quarter of failure to meet the data availability 

requirements; and 

(2) During the period of time from the end of the second quarter of failure to meet the data 

availability requirements until the successful certification testing completion of the replacement 

CEM system: 

a. Maintain the quality of data obtained from the currently operating CEM and maximize 

data availability of the CEM; or 

b. Replace the existing CEM with a temporary alternative that shall monitor the 

compliance status of the emission point of concern. 

(g) Alternatives to the replacement of the entire CEM system as required by paragraph (f) above, shall 

be allowed provided that the facility can provide the division with technical justification that the alternative 

will ensure that the 90% data availability requirement shall be met on a consistent basis. 

Source. #7788, eff 10-31-02 

Env-A 808.11 Quarterly Emission Reports. Within 30 days of the end of each calendar quarter, an 

owner or operator of a source with a gaseous or opacity measuring CEM system shall submit an emission 

report to the division. 

Source. #7788, eff 10-31-02 

Env-A 808.12 Emission Reports for Sources Subject to 40 CFR 60. The owner or operator of a 

source subject to 40 CFR 60 which is required to install, calibrate, operate, and maintain a CEM system, shall 

provide the following in each quarterly emission report specified in Env-A 808.11: 

(a) The information specified in 40 CFR 60.7(c) and any applicable subpart of 40 CFR 60; 

(b) The daily averages of gaseous CEM measurements and calculated emission rates; and 

(c) The information required in Env-A 808.13(a)(5) through (9) below. 

Source. #7788, eff 10-31-02 

Env-A 808.13 Emission Reports for Sources Not Subject to 40 CFR 60. 

(a) The owner or operator of a source not subject to 40 CFR 60 which is required to install, calibrate, 

operate, and maintain a CEM system, shall provide the following in each quarterly emission report specified 

in Env-A 808.11: · 

( 1) Excess emission data recorded by the CEM system, including: 

a. The date and time of the beginning and ending of each period of excess emission; 

b. The magnitude of each excess emission; 

41 Env-A 800 
NEW HAMPSHIRE CODE OF ADMINISTRATIVE RULES 

c. The specific cause of the excess emission; and 

d. The corrective action taken; 

(2) If no excess emissions have occurred, a statement to that effect; 

(3) For gaseous measuring CEM systems, the daily averages of the measurements made and 

emission rates calculated; 

(4) A statement as to whether the CEM system was inoperative, repaired, or adjusted during the 

reporting period; · 

(5) If the CEM system was inoperative, repaired, or adjusted during the reporting period, the 

following information: 

a. The date and time of the beginning and ending of each period when the CEM was 

inoperative; 

b. The reason why the CEM was not operating; 

c. The corrective action taken; and 

d. The percent data availability calculated in accordance with Env-A 808.10 for each flow, 

diluent, or polluant analyzer in the CEM system; 

(6) For all "out of control periods" as defined in Env-A 808.01(g) and 40 CFR 60, Appendix F, 

the following information: 

a. The times beginning and ending the out of control period; 

b. The reason for the out of control period; and 

c. The corrective action taken; 

(7) The date and time beginning and ending each period when the source of emissions which the 

CEM system is monitoring was not operating; 

(8) The span value, as defined in Env-A 101.255, of each analyzer in the CEM system and units 

of measurement for each instrument; and 

(9) When calibration gas is used, the following information: 

a. The calibration gas concentration; 

b. If a gas bottle was changed during the quarter: 

1. The date of the calibration gas bottle change; 

2. The gas bottle concentration before the change; and 

3. The gas bottle concentration after the change; and 

c. The expiration date for all calibration gas bottles used. 

(b) If daily averages as specified in (a)(3) above, are not feasible, the owner or operator shall submit 

to the division a written request containing the following information: 

42 Env-A 800 
NEW HAMPSHIRE CODE OF ADMINISTRATIVE RULES 

(1) The proposed alternative time period; 

(2) Averages based on that alternative time period; and 

(3) Documentation showing why daily averages are not feasible. 

(c) If the request identified in (b) above, clearly states the alternative time period and provides 

documentation showing why daily averages are not feasible, the division shall approve an alternative time 

period. 

Source. #7788, eff 10-31-02 

Env-A 808.14 Valid Averaging Periods. The number of hours of valid CEM data required for 

determining a valid averaging period for the different emission standard periods shall be: 

(a) For a 3-hr emission standard period, 2 hours of valid data; 

(b) For a 4-hr standard emission standard period, 3 hours of valid data; 

(c) For a 8-hr standard emission standard period, 6 hours of valid data; 

(d) For a 12-hr standard emission standard period, 9 hours of valid data; and 

(e) For a 24-hr standard emission standard period, 18 hours of valid data. 

Source. #7788, eff 10-31-02 

Env-A 808.15 Use of CEM Data. The division shall use CEM data either directly or indirectly for the 

following: 

(a) Compliance determinations; 

(b) Air quality impact analysis; 

(c) Air pollution dispersion modeling; 

(d) Control technology review; and 

(e) Emissions inventory. 

Source. #7788, eff 10-31-02 

PART Env-A 809 APPROVAL OF ALTERNATE METHODS 

Env-A 809.01 Approval of Alternate Methods or Requirements. For any testing or monitoring 

procedure that is an alternative to a method or requirement specified by these rules, the following procedure 

shall apply: 

(a) The owner or operator of a source seeking approval of an alternative shall submit to the director 

the following information: 

(1) A description of the proposed alternate method or requirement; 

(2) The identity of the compound that is to be tested or controlled or the equipment that is to be 

maintained by the alternate method or requirement; 

43 Env-A 800 
NEW HAMPSHIRE CODE OF ADMINISTRATIVE RULES 

(3) The identity and description of the source at which the alternate method or requirement will 

be implemented; and 

(4) Technical data and information demonstrating that the purpose of the specified method or 

requirement will be achieved by the alternate method or requirement and that the alternative 

produces results that are no Jess precise and accurate than those produced by the specified 

method or requirement; and 

(b) Within 60 days of receipt of a complete application that meets the requirements of (a) above, the 

director shall: 

( 1) Review the application; 

(2) Issue a written decision: 

a. Approving the application if the department determines that the alternate method or 

requirement: 

1. Achieves the purpose of the specified method or requirement; and 

2. Produces results that are no less precise and accurate than those produced by the 

specified method or requirement; or 

b. Denying the application and specifying the reason(s) for the denial; and 

(3) Notify the applicant and EPA of the decision. 

Source. #6519-B, eff 5-29-97; ss by #7788, eff 10-31-02 

Env-A 809.02 Alternate Methods for Federal Standards. Alternate test methods for compliance with 

federal standards, such as those specified in 40 CFR 60, 61, and 63, shall be submitted by the owner or 

operator of the source to EPA for approval. 

Source. #6519-B, eff 5-29-97; ss by #7788, eff 10-31-02 

44 Env-A 800 
NEW HAMPSHIRE CODE OF ADMINISTRATIVE RULES 

APPENDIX 

Provision of the Proposed Rule Specific Section of State or Federal Statute or Regulation 

which the Rule is Intended to Implement 

Env~A 607.0l(bb) RSA 125~C: 11 

Env~A 704.06 RSA 125~J: 13, II( a) 

Env-A 801 RSA 125-C:6, XI & Xll 

Env A 802 RSA 125-C:6, XI 

Env-A 803 & 804 RSA 125-C:6, XI; 42 U.S.C. Section 7410 & 7502(c) 

Env-A 805 & 806 RSA 125-C:6, XI 

Env-A 807 RSA 125~C:6, XI & XII 

Env-A 808 RSA 125~C:6, XI; 40 CFR 51 Appendix P, 60 61,63 & 75 

Env-A 809 RSA 125~C:6, XI & XII 

45 Env-A 800