HomeMy WebLinkAbout1987-048 CONT Modification - BPA No DE-MS79-83BP91413 A�TTIIENT?CATED COPY
Department of Energy
7 < Bonneville Power Administration
r P.O. Box 3621
is -rsr Portland. Oregon 9'208-3621
�•.o.•..•e: RMRC DEC 2 B 1987
Dear Residential Weatherization Contractor:
In accordance with the Modification Provision in your Weatherization Program
Agreement (Agreement) , the Bonneville Power Administration is granting
Modification No. M-029 (Modification) (enclosed) to the Agreement. This
Modification is effective immediately upon signature of a Contractor who
chooses to adopt such Modification. This Modification shall be in effect
until completion of the next amendment cycle, during which time this
modification will be considered for inclusion in an amendment.
In witness, whereof, the parties have executed this Modification.
• BONNEVILLE POWER ADMINISTRATION
By: /s/ Sue F. Hickey
Acting Assistant Administrator
for Conservation and Power Resources
CONTRACTOR
By: /s/ L. Gordon Medaris
Title: Mayor of Ashland, OR
Date: 2-4-88
Contract No. DE-MS79-838P 9 / y1R
City of Ashland
ATTEST :
By: /s/ Nan E. Franklin
Title: City Recorder
Date: 2-4-88
Enclosure
Tt.plt�
"`°* Crlrbraring rhr U.S- Consruarion Birrnrr•nnial — 1787-1987
BONNEVI_LE POKER ADMINISTRATION
Portland, Oregon
CONTRACT MODIFICATIDN
CASE NUMEER: M-030 DATE:
REFERENCE CONTRACT: Residential Weatherization Agreement, Exhibit F,
Specification
SUBJECT: Alternate Radon Mitigation Techniques - Basement Air-to-Air Heat
Exchanger (AAHX)
STATEMENT OF THE PROBLEM:
The 3 homes in question have heated basement areas. Each partial or full
basement can be completely isolated from the remainder of the living space or
oaylioht basements. Under current specifications, if an air-to-air heat
exchanger is installed, it must ventilate the total volume of heated space and
be sized accordingly.
The utility proposes an alternate mitigation technique which would use an
t air-to-air heat exchanger to only ventilate the heated basement areas as set
forth in the issue Backcrounder on radon oaten Marcn 16, 1962, and b£ sized to
accommodate this area only.
• RELEVANT BACKGROUND INFORMATION
The purpose of this modification is to establish minimum requirements for
installing forced air ventilation as a technique for reducing radon in
existing homes. The requirements are based on research performed by the
Environmental Protection Agency (EPA) and Lawrence Berkeley Laboratories.
This technique has reduced radon levels in test houses. Actual performance of
the technique in each house depends on unique characteristics of the house,
the routes of radon entry, and thoroughness of the job. Generally, because
radon mitigation is new, specific reductions in radon levels cannot be
Guaranteed. The homeowner should follow up any mitigation action with
-
aduitional radon monitoring and subsequent work if radon levels are not
FcV-cprldtely Ioweret.
Professional contractors experienced in radon reduction procedures should be
selected to perform this work.
Several publications are available from the EPA that may help homeowners
Select an aporopriate action for their house and radon concentration level.
These documents are:
1. A Citizen' s Guide to Radon: What it is and What To Do About It,
0PA-85-OD4, August, 1985.
• 2. Radon Reduction Methods: A Homeowner' s Guide, DPA-85-005, August,
1986.
This mitigation technique by itself often will not reduce radon concentration
vels below the action level of the Weatnerization Program. The intent of
endatory Agreement No. 15 is to offer alternate mitigation tecnnigues that
have the potential to offset increases in radon concentration that may nave
occurred due to the installation of nouse-tightening measures under tnis
program.
BotMZVILL= R=SPOMS= :
Basement ventilation by air-to-air heat exchanger shall be a-ceptable as an
alternate radon mitigation technique provided that the following requirements
are met:
1. Isolation: The basement shall be isolated from the living space above by
sealing all noles in the floor including plumbing, electrical and structural
supports. All joints and connections in the duct work located in the basement
shall be sealed. All stairwells from the basement to the living space shall
be enclosed and connected to the living space with a weatherstripped door.
All doors connecting the basement to other parts of the building shall be
weatherstripped. All forced air returns shall be ducted from the living space.
2. Sealing: Perimeter cracks and control joints in the basement floor slab
shall be caulked with a polyurethane sealant. The interior surface of all
walls shall be plastered or coated with epoxy paint. All pipe and electrical
penetrations shall De sealed with a polyurethane caulk.
3 Sizing: The air-to-air heat exchanger shall be sized to provide a minimum
iiation of 0.25 air changes per hour based on the conditioned volume of
basement.
4. Location: The air-to-air heat exchanger shall be installed so as to
provide ventilation of the conditioned basement area only. For basements
which have conditioned floor areas greater than 1000 souare feet, either two
window or wall units located in separate areas or a single heat exchanger
equipDed with ducts leading t0 separate locations for all intake and discharge
shall be required (11C^.340).
General Provisions and Product Provisions: Air-to-air heat exchangers
used in :.nis alternate u.It7gatlon te:nnicue shall meet the General P^DVISlOnS
(11D.200) and Product Provisions (110.400) of the SDe`ifi-a'ion.
5. DD=_ratin0 instructions: The installer shall provide the homeowner witn
full operating instructions for the mitica-ion equipment:
7. Past Mitigation Monitoring: The homeowner should be encouraged to have
long-term ;3 neatinc season months or 1 year) post mitigation monitoring
performed periodically. The homeowner Should be aware, nDwever, of the
potential Of wide variation in radon readings because of the many factors that
can affect radon movement. Research indicates that radon concentration is
seasonally dependent. However, very little research has been performed to
identify variability from one year to the next year. Post mitigation costs
will not be covered under this modification..
'- copy of this modification and a copy of the Indoor Air Pollution and
come Weatherization option sheet (attached) with customer signature shall be
liven to the customer upon implementation Of this tecnnique.
AUTHENTICATED COPY
Department of Energy
IBonnevrlie Power Aomrnrstrauon
P.O. Box 3G21
's Portland. Oregon 9- 08-3621
?AT r"
RMRC DEC 2 8 1987
Dear Residential Weatherization Contractor:
In accordance with the Modification Provision in your Weatherization Program
Agreement (Agreement), the Bonneville Power Administration is granting
Modification No. M-030 (Modification) (enclosed) to the Aareement. This
Modification is effective immediately upon signature of a Contractor who
chooses to adopt such Modification. This Modification shall be in effect
until completion of the next amendment cycle, during which time this
Modification will be considered for inclusion in an amendment.
In witness, whereof, the parties have executed this Modification.
SONNEVILLE POWER ADMINISTRATION
By: /s/ Sue F. Hickey
Acting Assistant Administrator
for Conservation and Power Resources
CONTRACTOR
By: /s/ L. Gordon Medaris
Title: Mayor of Ashland, OR
Date: 2-4-88
Contract No. DE-M579-83BP 91413
ATTEST :
By: /s/ Nan E. Franklin
Title: City Recorder
Date: 2-4-88
- Enclosure
BONNE VIL LE po.i R AO",1 NISTRATION
• Portland, oredon
CONTRA? MODIFICATION
0434C
CASE NUMEER; N.-029 DAT=:
REFERENCED CONTRACT: ResidentialSpeciferiziondn Conservation Agreement,
SUBJECT: Alternate Raoon Mitigation Techniques - Basement Pressurization
STATEMENT OF THE PROBLEM:
are different
A homeowner wishes to install radon mitigation tecnnidues that
tnan the currently accepted air-to-air neat excnanpderil�`ion) in ahnous�lw'iyn
or000sed casement pressurization and crawlsDa-e nt
c
de areas and Z bZS ement. This moOiflcztlon acaresses DZSement
rawlsp ..
pressurization as an alternate radon mitigation technique in residences
eligible for alternate mitigation- Crawlspace ventilation radon mitigation is
addressed in Modification P'-031 .
RELEVANT BACKGROUND IN=ORPIATIUU: eq
• Tne purpose o?ivnlpasDd!e> `pressurization aslast em:hnidue ro ureducing radon in
installing
a: ormed Dy the
existing homes. Tne requireements-'Ae andeLawrenceeBerkeley LaDcratories.
Environmental Protection Acen:y ('• )
This technique has reduced radon levels in test
ric25teris�i-saofpThe ndusee yr
to°e tecnnigLe in each house depends on unique c
the ze:nnS ue radon entry, and tnoroughness OT the Jor. Genera ll)', D°-OaUSe
radon mitigation is new, specific reductions in radon I°_VeIS cannot De
D'u Zr Zr�t°-°-d. Ine no snould fDll Dw L'p any mitlGatlOn ?.:':10n with
additional radon monitoring and suosequent worK ^aGOn l°-V eIS are not
appropriately lowered.
`rotessiOrlai -contractors experienced in radon reduction p- c-edures SnoUIG be
selected to perTorm this_ work.
2
• Several Dublicao:�oeteaaction iforltnei�mhouse-and radonacon2entra'nionnlevel .
select an appropriate
7nese documents are:
1 . A Citizen' s Guide to Radon: What It is and What TO Do ADPut I:,
OPA-86-004, August, 1980.
2, Radon Reduction Methods: A Homeowner' s Guide, 0PA-86-0051 Audus:,
1986.
his mitication technique by itself, often will not reduce radon concentration
levels below the action level of the Weatherization Program. The intent of
Amendatory Agreement No. i5 is to offer alternate mitigation tecnnipues tnat
have the Potential to offset increases in radon concentration that may have
Occurred due to the installation of nouse-tiehtening measures under tnis
Drocram.
g?P. R.S?0(155:
Basement pressurization ressurization applications that meet the following requirements
_m_
snail be acceptable as alternative radon mitication tecnnigues.
Heated Basements With Forced Air Systems
• Por houses wish forced air neating Seystems e in°which the -furnace is located in
the basement the following r_quirem_n_s are necessary:
All accessible cracks and holes which connect the basement area to any
1.
caner structural space or to the outside must be sealed. Tnis includes
areas around Piping, plumbing, floor/ceiling joists, and perimeter walls.
All duct joints and penetrations shall be sealed. If the basement cannot
be properly isolated, this method snould no-6 be used.
2 SDrinc•-hinge doer closers must be placed on all doors leading t0
hart-bas°^en' areas. All doors leading to nor.-basemen: areas r:*st p:
wc:therStri Peed-
Tne mitication fan shall be placed in the co id air return duct to the
�• furnace and dire:te_C such thZt air l5 taKen from ub p7 r1on or an.acuan q wall.
displaced into the basem=ent tnrdUdh the fan iP.s-a _.,,n in
4, The basereent cold Fir return shall De Scaled. All return air mast De
drawn from upper floor areas.
_. A
ba:Kpraft da,..per shall be installed in the main surnac°- supply Duct.
6. The fan snail be sized to Provide a minimum of 3 pascals of
ove^PressurizZtion or in accordance with the attached table.
3
Heated Basements Without Forced Air Svstems
For a heated basement without t forced air system, the following requirements
are necessary:
1 . All cracks and holes whicr. connect the basement area to any other
structural space or to the outsioe must De sealed. Tnis includes areas
around DiP�n9. plumping, floor/ceiling rim joists, and perimeter walls.
If the Dasement cannot De properly isolated, this method should not De
used.
Z, Spring-hinge door closers must be placed on all doors leading to all
non-Dasement areas. All Coors leading to non-Dasement areas must De
weatnerstripoed.
3 The fan must be located in such a way that it brings upper level
conditioned inside air dowr. into the Dasement area.
4. Tine fan shall be sized to provide a minimum of 3 pascals
overpressurization or in accordance with the attached table.
• Unheated Basements With or Without Forced Air Svstems
For Unheated basements the fDllDwing requirements are necessary:
1. All cra-kS and holes which connect the basement area to any Other
structural space or to the outside must be sealed. This includes areas
around Diving, plumbing, electrical penetrations, floor/ceiling joists,
and perimeter walls. if the basement cannot De propOerly isolated, this
method should not be used.
?, For forced air systems, all basement return air ducts Shall D°_ Sealed.
All ouzz joints and penetrations Shall be sealed.
3 sbrinb-hinge door closers must De placed on all doors leading to all
• non-basement areas. All doors leading to non-oasement areas must o°_
wcatherStr ipped.
4. The fan shall be Sized to provide a -minimum of 3 pascals
Dverpressur,zation or in accordance with the att aC h°-d tapl°_.
The -; ticeting fan must be located in an eXterior wall and -punted such
that is brings in outside air and displa'Es it into the OZS emiierit Zrea.
The fan intake duct Shall De located at 1EZst 1B" above grab°_ on the
outside of the house. Animal and bug screens Shall be installed inside
�•
the intake ❑UCt. The intake duct shall draw air from eitner a horizontal
Or d downward vertical direction such that any moisture trpm norm al
precipitation will not De'introduced into tnE Dasement air.
% . All piping and plumbing 'tines shall be protected from freEZing by the
application of insulation or heat wrap materials-
4
•
E, The homeowner shall be informed that the basement pressurization system
soecifieO for unconditioned basements is not suitable for conditioned
basements. If the homeowner plans to convert an unconditioned basement to
a conditioned living sbace at some time in the future, otner mitigation
techniques may be more appropriate.
General Requirements:
7nF following requirements shall apply for all basement pressurization systems.
1 , Ventilating Fan Requirements.
a, The fan shall be listed by an eDDroved agency such as the Canadian
Standards Association or Underwriters Laboratory, Inc.
b, The fan shall be designed for continuous operation.
The fan shall have a sone rating of 2.5 or less (noise level) .
d. The fan shall be hardwired t0 a separate Circuit breaker in the main
electrical panel .
• 2, Hollow Block Walls.
a, The top course of block must be closed (Cap block or solid block to
course). If the top Course is open, and cannot be Closed, then this
technicue shall not b£ used.
b• The interior of block wails shall be Coated with Epoxy paint or
parging.
Moisture �OntrD',. Special care must b£ taken to properly vent all
�. oisture outside the building envelope. otherwise, moist air tram the
conditioned space could be =orced into the walls or attic where moiswre
Can condense and cause structural daMzge.
oD_. E:ing Instructions. Th_ instaii_r shall IEaV_ full operating
e
inS_ru:C ions for the mitigation equipment with the hoaleowler.
FOSt MltlOa-ion MOnitorine. The homeowner should be encourageed t0 have
r' long term (2-heatinc Season months tD 1 Veer) post L.f=igatl0h mph ltOring
pe;ormed. The hOme_Dwner Should be aware, however , 07 the_ Do6en.ial Of
wide in Variation radon rea'uinCs be-aU'SE 0? "t Tl£ many faCt0T5 the Can
affect r200h movement_
Research indicates that radon concentration is
SE2SOnally dependent, but Very little research has been De,iO Tied t0
ibentlfy Variability from one year t0 _h_ n_Xxt year. post mitigation
monitoring costs will not be_ Covered Under this mOdlfication.
�• �, n copy Of this mOdlficatlon and a CODY Of the Indoor Air FDl lotion and
HDmE Weetherization Option Sheet ( attaCned) with Customer signature, shall
be given to the customer upon implEMEntztion Of this mitigation technique.
AN SIZES —OR 3.1.S�tJ �NT' -SSU 'i%tiTION SYST�P� S
Area (sa. ft.) I- cites CF N 2
---
250 50
500
750 30
1000 500
1250 `L
1500 ` D0
1750 ' B5
2000 21T
2 00 256
3000 '20
_500 '7'
basemen:
? 0.3 air ananC_ :)e- '1^ �.^- iIV
INDOOR A.IR PO!LUTiON AND H0I^.- h-_1;TH:RIZLT; ON
• Acknowlecoment of Receipt of Information
• Consumer Gptions for Maintaining Incoor Air Quality
I have received the brochure and Dookiet provided by EPA on indoor air
pollution and weatherization. I plan to read this information before i decide
how to weatherize my home.
If I decide to install house tightening measures in my home, I will choose one
of the three indoor air quality options after I have reviewed the information
provided me.
Name
Date
-------------------------------------------------------------------------------
I understand the information provided me on home weatherization and indoor air
pollutants. On the basis of that information, I have chosen the option
t checked below:
0?TION 1 weatherize without Radon Monitoring
i I I wish to install house tightening measures, without radon
monitoring.
Q?TION 2 weatherize, then Monitor for Radon
I I wish to install weatherization measures, including house
tightening measures, and then have my home monitored for radon.
If my radon reading is above 3?A's action level I smay choose to
have an air-to-air heat exchanger installed in my home to
c--mpensete for the effects of these house tichtenin-y measures or
pursue alternative radon reduction techniques. EPA will help
share the cost of this air-to-air heat exchanger or alternative
racon reduction measures.
0--TION 3 Monitor for Radon, then weatherize
lI I wish to have my home ronitored for radon b=_fore i weatherize.
If my radon reading is above SPA's action level, and 1 install
house tiontenina measures under this Program, I may choose to
have an air-to-air heat exchanger installed in my home to
compensate for the effects of these house tiontenina measures or
�• pursue alternative radon reduction techniques. SPA will help
share the cost of this air-to-air heat exchanger or alternative
radon reduction measures.
I understand that an air-to-air heat exchanger will be sized to maintain the
pre-weatherization air exchange rate to attempt to avoid increases in existing
radon levels. I understand that the alternative racon reduction techniques
may reduce radon levels below the pre-weatherized levels. However, with all
of these methods, there remains some uncertainty as to their effectiveness and
reliability in specific residences. I understand that periodic followup
monitoring of my home for pollutants is the best way to determine the
effectiveness and reliability of these methods or devices.
The Bonneville Power Administration and (Contractor flame) make no
claims or warranties as to the effectiveness or reiiaDIIIty OT any these radon
reduction methods or devices.
Name
Date
W%KRR-'355v
11T1-T,FNTICATED COPY
Department of Energy
• } Bonneville Power Administration
t. W P.O Box 3621
,lJS>ATCS� Portland. Oregon 97208.3621
RMRC DEC 2 8 1y67
Dear Residential Weatherization Contractor:
In accordance with the Modification Provision in your Weatherization Program
Agreement (Agreement), the Bonneville Power Administration is granting
Modification No. M-031 (Modification) (enclosed) to the Agreement. This
Modification is effective immediately upon signature of a Contractor who
chooses to adopt such Modification. This Modification shall be in effect
until completion of the next amendment cycle, during which time this
Modification will be considered for inclusion in an amendment .
In witness, whereof, the parties have executed this Modification.
• BONNEVILLE POWER ADMINISTRATION
BY: /s/ Sue F. Hickey
Acting Assistant Admenistrator
for Conservation and Power Resources
CONTRACTOR
By: /s/ L. Gordon Medaris
Title: Mayor of Ashland, OR
Date: 2-4-88
Contract No. DE-MS75-EHP
City of Ashland
ATTEST:
By: /s/ Nan E. Franklin
Title:- City Recorder
Date: 2-4-88
Enclosure
'"r"'° Crlrhrnrin¢ rhr C!.S. Gmuinrrinn BirrrnrnriirJ — ;-•G"1./VR7
BONNEVILLE POWER ADMINISTRATION
Portland, Oregon
CONTRACT MODIFICATION
CASE NUMBER: M-031 DATE:
REFERENCED CONTRACT: Residential Weatherization Conservation Agreement,
Exhibit F , Specification
SUBJECT: Alternate Radon Mitigation Techniques - Crawlspace Ventilation
STATEMENT OF THE PROBLEM:
A homeowner wishes to install radon mitigation techniques that are different
than the currently accepted air-to-air heat exchanger (AAHX) . The proposed
techniques consist of providing appropriate basement pressurization and
crawlspace ventilation. This modification addresses crawlspace ventilation as
a radon mitigation technique.
• RELEVANT BACKGROUND INFORMATION:
The purpose of this modification is to establish minimum requirements for
installing crawispace ventilation as a technique for reducing radon in
existing homes. The requirements are based on research performed by the
Environmental Protection Agency (EPA) and Lawrence Berkeley Laboratories.
This technique has reduced radon levels in test houses. Actual performance of
the tecnnique in each house depends on unique characteristics of the house,
the routes of radon entry, and thoroughness of the jo b. Generally, because
radon mitigation is new, specific reductions in radon levels cannot be
guaranteed. The homeowner should follow up any mitigation action with
additional radon monitoring and subsequent work if radon levels are not
aopropriately lowered.
Professional contractors experienced in radon reduction procedures should be
selected io perrorm this work.
•
2
Several publications are available from the EPA that may nelp nomeowners
Select an appropriate action for their house and radon concentration level.
These documents are:
1 . A Citizen's Guide to Radon: What It is and wnat To Do About It,
OPA-86-004, August, 1986.
2. Radon Reduction Methods: A Homeowner' s Guide, OPA-8e-005, August,
1986.
This mitigation technique by itself often will not reduce radon concentration
levels below the action level of the Weatnerization Program. The intent of
Amendatory Agreement No. 15 is to offer alternate mitigation techniques that
have the potential to offset increases in radon concentration that may have
occurred due to the installation of nouse-tightening measures under this
program.
BONNEVILLE RESPONSE :
CrawlsDace ventilation that meets the following requirements shall be
acceptable as an alternate radon mitigation technique.
1. Isolation: The crawlspace shall be isolated from the living space above
• by sealing all holes in the floor including plumbing, electrical and
structural supports. All joints and connections in the duct work located in
the crawlspace shall be sealed. All crawlspaces to be sealed shall be
isolated from basements, attached garages, and other adjacent enclosed
spaces. Proper freeze protection for water pipes shall be provided. A full
ground cover shall be present in accordance with 104.535. All potential
moisture sources present in the crawlspace shall be corrected.
2. Ventilation: Select either the passive technique or the active technique.
3. Passive Technique: Net free ventilating area of at least one square foot
Shall De provideO Tor each 75 square feet of untie floor crawlspace area in the
exterior foundation walls. Ventilation openings shall be located as close as
passible to corners to prevent pockets of stagnant air. Baffles shall be
installed at vent openings to prevent underfloor insulation from interfering
with airflow.
If one square foot per 75 square feet cannot be provided, ventilation meeting
the following requirements shall be acceptable:
a) The existing net free ventilating area shall be increased by at least -
50 percent.
b) A minimum of 1 square foot of net free ventilating area per 150
square feet of crawlspace floor area is provided.
c) Adequate cross-ventilation in accordance with 104.625 has been
provided.
3
4. Active Technique: Ventilation of the crawlspace shall be provided in
accoroance witn 104.625 or 104.630 of the Specification. Baffles shall be
installed at foundation vent openings to prevent underfloor insulation from
interfering with airflow. The crawlspace shall be cry and well grained with
no evidence of seasonal standing water. 7ne following ventilating fan
material and installation requirements shall apply.
Ventilating Fan Requirements:
a) Fans shall be listed by an approved agency, such as the Canadian
Standards Association or Unoerwriters Laboratory, Inc.
b) Fans shall have a sone rating of no greater than four.
d) Fans shall be capable of providing the minimum flow rates listed in
the attached table.
d) Fans shall be designed for continuous operation.
Ventilating Fan Installation:
a) The ventilating fans shall be hard-wired into a separate circuit
breaker in the main electrical panel .
• b) Fans shall be oriented such that airflow is drawn from the outside of
the crawlspace and delivered into the crawlspace.
c) Where possible, fans shall be located in exterior foundation walls.
A large enouah crawlspace opening shall be provided for maintenance
or replacement of the fan.
5. Operating Instructions: The Installer shall provide full operating
instructions .or the radon mitigation equipment to the homeowner.
E. PCst Mitld'ctlOn Monitcrinc: The homeowner should be encouraged to have
lon neating SEaSOn months t0 1-year) post m9ticEtion monitoring
pe,,ormed periodically. The homeowner should be aware, however, of the
potential Of wide variation in radon readings because of the many f actors that
Can affect radon movement. Research indicates that radon concentration is
seasonally dependent. However, very little resEarzh has been pe. ormed to
identify variability from one year to the next year. Post mitigation
monitoring costs will not be covered under this modification.
7. A copy of this modification and a copy of the Indoor Air Pollution and
home Weatherization option sheet ( attached) with customer signature shall be
given to the customer upon implementation of this mitigation technique.
FPratt:bgp:5994 (WP-KRR-5626v)
TABLE 4-3
FAN FOR ACTIVE CRAWLSPACE VENTILATION SYSTEMS
Flom Rates For Various Crarlspace Areas And Average Heights (CFM)
Arer-s{ 1P' High ?t' Hieh SP' H10h 36' H1 vh
c• sort
or less
25
250 _ 25 25 25 52 50
500 25 33 75
750 38 50 62
67 E3 100
1000 50 104 125
1250 62 63
1500 75 100 125 150
I17 146 115
1750 BE 167 200
2000 100 1S3 250
2500 125 167 20B
200 250 300
3000 150 233 252 350
3500 175 333 400
4000 200 267
5000 250 333
417 500
•