diff --git a/libs/schema-validation/src/main/kotlin/gov/cdc/ocio/reportschemavalidator/health/schemaLoadersystem/HealthCheckS3Bucket.kt b/libs/schema-validation/src/main/kotlin/gov/cdc/ocio/reportschemavalidator/health/schemaLoadersystem/HealthCheckS3Bucket.kt
index 61644568..eb734b72 100644
--- a/libs/schema-validation/src/main/kotlin/gov/cdc/ocio/reportschemavalidator/health/schemaLoadersystem/HealthCheckS3Bucket.kt
+++ b/libs/schema-validation/src/main/kotlin/gov/cdc/ocio/reportschemavalidator/health/schemaLoadersystem/HealthCheckS3Bucket.kt
@@ -1,33 +1,29 @@
 
 package gov.cdc.ocio.reportschemavalidator.health.schemaLoadersystem
 
-import com.fasterxml.jackson.annotation.JsonIgnoreProperties
-import gov.cdc.ocio.reportschemavalidator.utils.AWSS3Configuration
 import gov.cdc.ocio.types.health.HealthCheckResult
 import gov.cdc.ocio.types.health.HealthCheckSystem
 import gov.cdc.ocio.types.health.HealthStatusType
-import org.koin.core.component.KoinComponent
-import org.koin.core.component.inject
 import software.amazon.awssdk.services.s3.S3Client
-import software.amazon.awssdk.services.s3.model.ListObjectsV2Request
+import software.amazon.awssdk.services.s3.model.ListBucketsRequest
 
 
 /**
  * Concrete implementation of the S3 Bucket health checks.
  */
-@JsonIgnoreProperties("koin")
-class HealthCheckS3Bucket(private val s3Client: S3Client) : HealthCheckSystem("s3"), KoinComponent {
-
-    private val awsServiceConfiguration by inject<AWSS3Configuration>()
+class HealthCheckS3Bucket(
+    private val getS3ClientFunc: () -> S3Client,
+    private val s3Bucket: String,
+) : HealthCheckSystem("s3") {
 
     /**
      * Checks and sets S3 Bucket accessible status
      * @return HealthCheckResult
      */
     override fun doHealthCheck(): HealthCheckResult {
-        val result = isS3FolderHealthy(awsServiceConfiguration)
+        val result = isS3FolderHealthy()
         result.onFailure { error ->
-            val reason = "S3 bucket is not accessible and hence not healthy ${error.localizedMessage}"
+            val reason = "S3 bucket is not accessible and hence not healthy: ${error.localizedMessage}"
             logger.error(reason)
             return HealthCheckResult(service, HealthStatusType.STATUS_DOWN, reason)
         }
@@ -37,22 +33,21 @@ class HealthCheckS3Bucket(private val s3Client: S3Client) : HealthCheckSystem("s
     /**
      * Check whether S3 Buket is accessible
      *
-     * @param config AWSS3Configuration
      * @return Result<Boolean>
      */
-    private fun isS3FolderHealthy(config: AWSS3Configuration): Result<Boolean> {
+    private fun isS3FolderHealthy(): Result<Boolean> {
         return try {
-            val request = ListObjectsV2Request.builder()
-                .bucket(config.s3Bucket)
-                .maxKeys(1) // one file - lightweight check
+            val s3Client = getS3ClientFunc()
+            val request = ListBucketsRequest.builder()
                 .build()
-            val response = s3Client.listObjectsV2(request)
-            if (response.contents().isNotEmpty())
+            val response = s3Client.listBuckets(request)
+            s3Client.close()
+            if (response.buckets().any { it.name() == s3Bucket })
                 Result.success(true)
             else
-                Result.failure(Exception("Established connection to S3 bucket, but failed list objects check."))
+                Result.failure(Exception("Established connection to S3, but failed to verify the expected bucket exists."))
         } catch (e: Exception) {
-            throw Exception("Failed to establish connection to S3 bucket.")
+            Result.failure(Exception("Failed to establish connection to S3 bucket: ${e.localizedMessage}"))
         }
     }
 }
diff --git a/libs/schema-validation/src/main/kotlin/gov/cdc/ocio/reportschemavalidator/schema/S3SchemaStorageClient.kt b/libs/schema-validation/src/main/kotlin/gov/cdc/ocio/reportschemavalidator/schema/S3SchemaStorageClient.kt
index 3cf35c62..5215bbc1 100644
--- a/libs/schema-validation/src/main/kotlin/gov/cdc/ocio/reportschemavalidator/schema/S3SchemaStorageClient.kt
+++ b/libs/schema-validation/src/main/kotlin/gov/cdc/ocio/reportschemavalidator/schema/S3SchemaStorageClient.kt
@@ -30,8 +30,9 @@ class S3SchemaStorageClient(
      */
     private fun getS3Client(): S3Client {
 
-      val credentialsProvider = if (roleArn.isNullOrEmpty() ||
-            webIdentityTokenFile.isNullOrEmpty()) {
+        val credentialsProvider = if (roleArn.isNullOrEmpty() ||
+            webIdentityTokenFile.isNullOrEmpty()
+        ) {
             // Fallback to default credentials provider (access key and secret)
             DefaultCredentialsProvider.create()
         } else {
@@ -41,6 +42,7 @@ class S3SchemaStorageClient(
                 .webIdentityTokenFile(webIdentityTokenFile.let { Path.of(it) })
                 .build()
         }
+
         // Load credentials from the AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY and AWS_SESSION_TOKEN environment variables.
         return S3Client.builder()
             .region(Region.of(region))
@@ -67,6 +69,8 @@ class S3SchemaStorageClient(
             .readAllBytes()
             .decodeToString()
 
+        s3Client.close()
+
         return result
     }
 
@@ -150,5 +154,5 @@ class S3SchemaStorageClient(
         return getSchemaContent("$schemaName.$schemaVersion.schema.json")
     }
 
-    override var healthCheckSystem = HealthCheckS3Bucket(getS3Client()) as HealthCheckSystem
+    override var healthCheckSystem = HealthCheckS3Bucket(::getS3Client, bucketName) as HealthCheckSystem
 }
diff --git a/libs/schema-validation/src/main/kotlin/gov/cdc/ocio/reportschemavalidator/utils/AWSS3Configuration.kt b/libs/schema-validation/src/main/kotlin/gov/cdc/ocio/reportschemavalidator/utils/AWSS3Configuration.kt
deleted file mode 100644
index 2a17488c..00000000
--- a/libs/schema-validation/src/main/kotlin/gov/cdc/ocio/reportschemavalidator/utils/AWSS3Configuration.kt
+++ /dev/null
@@ -1,15 +0,0 @@
-package gov.cdc.ocio.reportschemavalidator.utils
-
-import io.ktor.server.config.*
-
-/**
- * AWS S3 configuration class
- * @param config ApplicationConfig
- * @param configurationPath String?
- */
-class AWSS3Configuration(config: ApplicationConfig, configurationPath: String? = null) {
-    private val configPath = if (configurationPath != null) "$configurationPath." else ""
-    val s3Bucket = config.tryGetString("${configPath}s3.report_schema_bucket") ?: ""
-    val s3Region = config.tryGetString("${configPath}s3.report_schema_region") ?: ""
-
-}
\ No newline at end of file