### UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION VII 901 NORTH 5TH STREET KANSAS CITY, KANSAS 66101 

### September 23, 2011

Dear Owner/Resident: Jose S Villa Omaha, Nebraska 68107 4507 South 20 Street

4507 South 20 Street

A Lead Based Paint assessment was recently performe d on your property by the U.S. Environmental Protection Agency as part of the Omaha Lead site investigation. The purpose of this assessment is to determine whether a signific ant quantity of LBP is present on the exterior surface of structures, where deteriorating paint co nditions (peeling, flaking, cracking, etc) exist that might increase lead concentrations in the yardabove acceptable levels. Enclosed are the LBP assessment sheets for 4507 South 20 Street. The EPA has developed paint stabilization eligibility criteria that involve mea suring the amount of deteriorated LBP on a structure and calculating the concentration of leadin soils around the home that would result if all of the identified deteriorated paint were to fall to the ground and uniformly mix with the soil under certain assumptions. During the LBP assessment, the areal extent of the deteriorated paint observed on structure surfaces was estimated and the lead content in the deteriorated paint was measured using an X-Ray Fluorescence instrument. The data obtained during the LBP assessment was use d to estimate the increase in soil lead concentration that would result if all of the deteriorating paint identified in the assessment were to fall to the ground and mix with surface soil within six feet of the foundation of the structure. For purposes of this calculation, the deterioratingLBP on a structure is assumed to fall onto the ground surface within six feet of the foundation and be uniformly mixed with the top one inch of soil. The estimated lead concentration in the so il potentially caused by the deteriorating LBP provides a measure of the severity of LBP deterioration on individual structures. The EPA uses these criteria to rank properties based on the potential for recontamination of soil to occur. Paint stabilization is being offered at only those households with the most severe LBP problems, particularly where children under the age of seven reside. Lead-Based Paint (LBP) Assessment

The LBP assessment performed by the EPA using the above criteria indicated that your house IS NOT eligible for paint stabilization. RE: SAID: 1318

### Enclosures

Para información en español, llame al EPA Informati on Center (402) 731-3045. Sincerely,

Pauletta R. France-Isetts Project Coordinator Environmental Protection Agency If you have any questions or concerns, please contact the EPA Public Information Center at (402) 731-3045.

# I Address: 45% 20 ST Phone: ALT 

### Omaha Lead 

### Site Site Lketch LBP Assessment North Arrow 1 

# b

Plan View 

## - Indicate number of stories and perimeter dimensions of structure 

## 1 lndicate reqions of deterioration and descrrbe (Detenoratlon could Include surfaces that are worn due to fnctmn checleng, cracktng and Raking anlgatonng Mstertng andtor peeltng)

### Omaha Lead Site 

### LBP Assessment LEGEND: H 

### - N 

## - P 

## - 01 

## - 1318 I I II - BVlD Number Sample Number 

# I - Matertal. P = Pant Slde of Stwcture N = North S = South E = East W = West Sample Number Samples Analyzed 

### XRF Unit 

### 2275-3 Book. 

# 2~5-

Date 

## I& I?-fC Tme 100 Staff 

### PE;nc J Y 

### 8,( 

### c Lead Loading Structure/Feature Substrate Color Deterlorated (W~ndow, sldmg, porch etc ) (Wood, cmaete, etc) Area

m,cm2 

## noor 

# (r,:, LouJ 

## u Lk 

## 2 Y ft 

### flE6 mgicml 1)3*~/060 /. 

## mri~ TG 

# - o i=t' 

### NFc> m,cm2 

### i,:.Tb~/~r.*t CooJ 

### OL&* go P



### 6 mg,(cmz tbd-lcf:,n /&,l( k~S*w.?/ 

### Y&.fc 

## 0 ftz flE6 mg~cm2 

## j)& 

# / L~wd 

### Ir~i ft2