. (e) “Reasonable further progreao” means the annual incremental reductions in emissions f

the levant regulated air pollutant that are required by 42 U.S.C. § 7501 to 7515, inclusiv , or

are ed by the Administrator to ensure attainment of the applicable standard for onal

ambient quality by the applicable date.

tal Comm’n, Air Quality Reg. 13.1.1, eff. 11-7-75; A 8-28-79; 3.1.3, eff.

11-7-75; A 8- -79; 2-28-80; ft 13.1.4-13.1.7, eff. 11-7-75]——(NAC A 10.. -87; 9-19-90;

11-23-92; 12-13- eff. 11-15-94; 3-29-94, eff 11-15-94; 10-30-95; R105-97 -5-98; R103-02,

12-17-2002; R125 9-24-2004; R096-05, 10-31-2005; R139-06 & 51-06, 9-18-2006;

R142-07, 4-17-2008; R 4-11, 10-26-2011)

NAC 445B.310 Envlro ental evaluation: Applicable ces and other subjects;

exemption. (NRS 445B.210, 300)

1. An applicant for an opera permit, a revision to perating permit or a request for a

change of location, which is not sub to the provisio f 40 C.F.R. § 52.21, as adopted by

reference in NAC 445B.221, must with the app tion an environmental evaluation for:

(a) A new stationary source which cmi , or has potential to emit, greater than 25 tons of a

regulated air pollutant per year;

(b) A modification to an existing stationary cc that meets the following criteria:

(1) The existing stationary source the tential to emit greater than 25 tons of a

regulated air pollutant per year; and

(2) The proposed modification the potential to t greater than 10 tons of a regulated

air pollutant per year;

(c) The approval of a plantwi applicability limitation or e approval to allow a plantwide

applicability hmitation to exp and not be renewed; or

(d) Upon written notice m the Director, any other source or ination ofsources.

2. An owner or tor of a Class 11 source may request exemption from the

. requirement to submit environmental evaluation with the application. Within 30 days after

receipt of a written for an exemption, the Director shall grant or the request and

notify the owner operator in writing of his or her determination, If such exemption is

granted, the r shall perform the environmental evaluation.

[Enviro ental Comm’n, Air Quality Reg. § 13.3, eff 11-7-75; A 12-15-77; ren as § 13.2, 8-2 - 9; § 13.3.1, eff. 11-7-75; A 12-15-77; renumbered as § 3.2.1, 8-28-79; § 1 . .2, eff.

11-7-7 , A 12-15-77; renumbered as § 13.2.2, 8-28-79; § 13.3.3, eff. 11-7-75; renum § 13. . , 8-28-79]—{NAC A 9-19-90; R 12-13-93, eff 11-15-94; A 10-30-95; R105-97, 3-5- ;

25-04, 9-24-2004; R096-05, 10-31-2005; R139-06, 9-16-2006)

NAC 445B311 Environmental evaluation: Contents; consideration of good

engineering practice stack height. (NRS 445B.210, 445B300)

1. An environmental evaluation which is required for a new or modified stationary source

pursuant to NAC 445B.308 to 445B.314, inclusive, or as required by the Director must contain a

careful and detailed assessment of the environmental aspects of the proposed stationary source

and must also contain:

(a) The name and address ofthe applicant

(1) The name, address and location ofthe stationary source;

(c) A description ofthe proposed stationary source, including the normal hours of operation

ofthe facility and the general types of activities to be performed;

(d) A map showing the location of the stationary source and the topography of the area,

including existing principal streets, roads and highways within 3 miles ofthe stationary source;

(e) A site plan showing the location and height ofbuildings on the site;

(f) Any additional information or documentation which the Director deems necessary to

determine the effect of the stationary source on the quality of the ambient air, including

measured data on the quality of the ambient air and meteorological conditions at the proposed

site before construction or modification; and

(g) A dispersion analysis of each regulated air pollutant.

445B-69 6-12
2. Where approval is sought for stationary sources to be constructed in phases, the

information required by subsection 1 must be submitted for each phase of the construction

project.

3. An environmental evaluation must also consider good engineering practice stack height

If the Director considers an analysis of a source based on a good engineering practice stack

height that exceeds the height specified in paragraph (a) or (b) of subsection 1 of NAC

445B.083, the Director shall:,

(a) Notify the ublic of the availability of the demonstration study performed pursuant to

paragraph (c) ofsubsection 1 ofNAC 445B.083; and

(b) Provide an opportunity for a public hearing on the demonstration study in accordance

with the requirements for a Class I operating pernut set forth in subsections 7,9 and 10 of

NAC 445B.3395.

4. A dispersion analysis used to determine the location and estimated value of the highest

concentration of each regulated air pollutantmust include:

(a) A dispersion model based on the applicable models, bases and other requirements

specified in the “Guideline on Mr Quality Models,” which is Appendix W of4O C.F.R. Part 51,

as adopted by reference in NAC 445B.221, except that the Director may authorize the modification ofa model specified in the “Guideline on Mr Quality Models” or the use ofa model not included in the “Guideline on Air Quality Models” ifthe Director:

(1) Determines that the modification or use is appropriate; (2) Obtains written approval ofthe modification or use from the Adininistrator and

(3) Provides notice of and establishes a 30-day period for comment in accordance with the

applicable provisions ofNAC 445B.3364, 445B.3395, 445B.3447, 445B.3457 or 445B.3477;

(b) A narrative report descril,ing:

(1) if applicab1e assumptions and premises used in the analysis, including, without limitation:

(I) Model options chosen;

(II) Urban versus rural selection;

(III) Background concentrations;

(IV) Characterization of emission sources as point, area or volume; (V) niicion discharge points; and

(VI) Rate of emission from each emission unit; and

(2) The geographic area considered in the analysis, including, without limitation,

information concerning:

(I) The nearest significant terrain features;

(II) The receptor grid or rids; and

(III) R.estricttons on public access to the stationary source; and

(c) Valid meteorological information pursuant to the provisions ofAppendix W of 40 C.F.R.

Part 51, as adopted by reference 1nNAC 445B.221, whicfr

(1) For sources that are not subject to the permitting requirements of4O C.F1I.. § 52.21, as adopted by reference in NAC 445B.221:

(I) Is site specific, if the information exists pursuant to subsection 1 of this section or subsection 7 ofNAC 445B.308, and which covers a period ofnot less than 1 year; (U) Has been obtained from an off-site location representative ofthe proposed site and

which covers a period ofnot less than 1 year;

(III) Represents the worst-case meteorological conditions, as approved by the Director for synthetic dats; or

(IV) Has been obtained over the last 5 years at the nearest National Weather Service

site; or

‘1

6-12 445B-70
(2) For sources that are subject to the permitting requirements of 40 C.F.R. § 52.21, as

adopted by reference in NAC 445B.22 1, is representative ofthe source site location and source

emissions and which covers a period ofnot less than 1 year.

[Environmental Comm’n, Air Quality Reg. § 13.4.1, eff. 11-7-75; A 12-15-77; renumbered as

§ 13.3.1, 8-28-79; § 13.4.1.1, eff. 11-7-75; A 12-15-77; renumbered as § 13.3.1.1, 8-28-79; § 13.4.1.4, eff 11-7-75; renumbered as § 13.3.1.2, 8-28-79]---(NAC A 10-30-95; R103-02,

12-17-2002; R096-05, 10-31-2005; R151-06, 9-18-2006; R126-10, 12-16-2010)

NAC 445B.313 Method for determining m2Yimum heat Input: Class I sources. (NRS

4458.210, 4458.300) For the purposes of determining the effects of Class I sources on the

quality of ambient air and determining the applicability of a federally enforceable standard or

requirement to an emission unit the maximum heat input will be determined by:

1. Multiplying the maximum fuel rate as determined by the manufacturer by the total

calorific value ofthe fuel as determined by using the appropriate method ofASTM International;

or

2. An alternative method specified by the Director as a condition contained in the operating

permit ofthe Class I source.

[Environmental Comm’n, Air Quality Reg. § 13.3.4, eff. 12-15-77; renumbered as § 13.2.4,

8-28-79]—(NAC A 9-19-90; 3-29-94, eff. 1-11-96; 10-30-95; R040-01, 10-25-2001; R103-02,

12-17-2002; R142-07, 4-17-2008; R126-l0, 12-16-2010)

4458.3133 Mthod fo dtrmlnlng heat Input; Class II sources. (NRS 4458.2),

445&0O) For the purposes of determining the effects of a Class II source on the qua!of

ambienNr pursuant to NAC 445B.308, 445B.310 and 445B.31 1, the heat input is thejgregate

heat conteLpf all combusted fuels, or the guaranteed maximum input of the ma9llfhcturer or

designer ofthêuipment, whichever is greater. The total heat input of all fuel-bjithing units in a

plant or on the epiises must be used to determine the maximum amounj4f a regulated air

“°(AddedtoNACtw(onmental Comm’n by Ri03-02, eff. 12-j2

NAC 4458.314 Methohq determining heat Input: 9l UI and Class W sources.

(NRS 4458.210,4458.300) For1lie purposes ofdeterminjnthe effects of a Class ifi source or

a Class W source on the quality oNinbient air pur1t to NAC 445B.308, 445B.310 and

4458.311, the heat input is the ag all combusted fuels, or the guaranteed

maximum input ofthe manufacturer or equipment, whichever is greater. The total

heat input of all fuel-burning units in a premises must be used to determine the

maximum amount of a regulated air be emittect

(Added to NAC by eff. 12-17-2002; A by R014-1 1,

10-26-2011)

NAC 4458.315 Contçats of operating permits: xcepuq1 for operating permits to

construct; required cojiditlons. (NRS 4458.210, 4458.300)

1. Notwithstani4 any provision of this section to the conlraiythe provisions of this

section do not apply to operating permits to construct.

2. The pirector shall cite the legal authority for each condition containe(in an operating

permit.

3.A1i operating permit must contain the following conditions:

..() The term ofthe operating permit is 5 years.

(b) The holder ofthe operating permit shall retain records of all required monitoring da d - suppin 4inginfonnatiea for 5 years after the date efthe sample eoileeoe, measurement, report ‘

4458-71 6-12