Journal articles on the topic 'Onion Creek'

The fish of Thane Creek and Ulhas River Estuary are contaminated with mercury. The traditional fishing folks residing along these water sources consume large amounts of these fish for their sustenance, therefore, being vulnerable to mercury poisoning. A survey on the clinical signs and symptoms of mercury poisoning was carried out in Wehele, Alimgarh and Diwe-Kewni along Ulhas River Estuary and Vittawa and Airoli along Thane creek. Fortunately, no alarming signals of mercury poisoning could be detected in these populations. Genetic make-up and/or use of onion and garlic in the fish preparations could be the probable detoxifying factors in these populations. However, these populations being vulnerable to mercury poisoning, continuous monitoring is recommended in these areas. This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

The Onion Creek diapir is one of the best exposures of a dissected salt diapir in the world, offering a unique opportunity to better understand the internal character of heterolithic diapirs that are common in sedimentary basins worldwide. Large amounts of interbedded shale, carbonate, and evaporites are incorporated into the diapir as stringers or boudins, and excellent three-dimensional exposure allows us to document the nature, size, deformation, and distribution of these stringers. Blocks range in size from single, disaggregated layers of dolomite to several meters of coherent stringers that contain multiple cycles of dolomite- shale-evaporite and are upwards of 20 m thick and more than 100 m in observed length. The largest blocks are most commonly located along the margins of the exposed diapir, though stringers are common throughout the exposed caprock. In areas devoid of large stringers, there is more extensive deformation of the gypsum caprock, suggesting that the presence of stringers leads to a more heterolithic distribution of stress within the salt as it diapirically rises. These observations can help to better characterize similar diapirs elsewhere that are not well exposed at the surface. Black shale is present in all observed large stringers of the Onion Creek diapir. These shale beds are interpreted to have been deposited in a shallow, restricted marginal marine environment along with the interbedded carbonate and evaporite strata. Pyrolysis analysis of 13 samples from within the stringers shows a range of 2.56 to 60.22% total organic carbon (TOC), with an average value of 16.93%. These strata contain Type I/Type II hydrocarbon source facies, consistent with a restricted shallow marine environment. Tmax data suggest that these source rock facies have been exposed to sufficient thermal energy to generate hydrocarbons (average = 437o C), as evidenced by common hydrocarbon staining of intra-stringer carbonate strata and evaporite beds surrounding the stringers. Twelve additional samples were collected from these stained strata and pyrolysis analysis shows that all are enriched in free oil, as shown by elevated S1 peaks, high production index ratios, and TOC values of 0.64 to 1.66%. This hydrocarbon staining is found around stringers near the center of the exposed caprock, as well as stringers along the margins. Near the margins in particular, extensive alteration can be seen across tens of meters of evaporitic strata, showing that hydrocarbons are effectively generating within and migrating away from stringers fully encased in the anhydrite caprock of the Onion Creek diapir. This has important implications for potential seal integrity of diapiric caprocks, as well as providing a potential mechanism for caprock carbonate formation suggested by other researchers.

The Onion Creek diapir is one of the best exposures of a dissected salt diapir in the world, offering a unique opportunity to better understand the internal character of heterolithic diapirs that are common in sedimentary basins worldwide. Large amounts of interbedded shale, carbonate, and evaporites are incorporated into the diapir as stringers or boudins, and excellent three-dimensional exposure allows us to document the nature, size, deformation, and distribution of these stringers. Blocks range in size from single, disaggregated layers of dolomite to several meters of coherent stringers that contain multiple cycles of dolomite- shale-evaporite and are upwards of 20 m thick and more than 100 m in observed length. The largest blocks are most commonly located along the margins of the exposed diapir, though stringers are common throughout the exposed caprock. In areas devoid of large stringers, there is more extensive deformation of the gypsum caprock, suggesting that the presence of stringers leads to a more heterolithic distribution of stress within the salt as it diapirically rises. These observations can help to better characterize similar diapirs elsewhere that are not well exposed at the surface. Black shale is present in all observed large stringers of the Onion Creek diapir. These shale beds are interpreted to have been deposited in a shallow, restricted marginal marine environment along with the interbedded carbonate and evaporite strata. Pyrolysis analysis of 13 samples from within the stringers shows a range of 2.56 to 60.22% total organic carbon (TOC), with an average value of 16.93%. These strata contain Type I/Type II hydrocarbon source facies, consistent with a restricted shallow marine environment. Tmax data suggest that these source rock facies have been exposed to sufficient thermal energy to generate hydrocarbons (average = 437o C), as evidenced by common hydrocarbon staining of intra-stringer carbonate strata and evaporite beds surrounding the stringers. Twelve additional samples were collected from these stained strata and pyrolysis analysis shows that all are enriched in free oil, as shown by elevated S1 peaks, high production index ratios, and TOC values of 0.64 to 1.66%. This hydrocarbon staining is found around stringers near the center of the exposed caprock, as well as stringers along the margins. Near the margins in particular, extensive alteration can be seen across tens of meters of evaporitic strata, showing that hydrocarbons are effectively generating within and migrating away from stringers fully encased in the anhydrite caprock of the Onion Creek diapir. This has important implications for potential seal integrity of diapiric caprocks, as well as providing a potential mechanism for caprock carbonate formation suggested by other researchers.

Abstract As an arts-based, creative storytelling program for persons living with Alzheimer’s Disease and related dementias (ADRD), TimeSlips involves a facilitator showing a picture to participants, who then exercise their imagination to create a story. The program has shown to benefit participants’ well-being, possibly because of the opportunity to express themselves. Although they may reflect participants’ values and identities, the content of such stories had not been the focus of investigation. The aim of this study is, therefore, to identify major themes of such stories through a qualitative content analysis. We implemented a creative storytelling program at Silverado Onion Creek Memory Care Community (currently, The Auberge) in Austin, and offered 6 weekly sessions with 4 small groups of residents. A total of 26 residents participated in the study, creating 24 collective stories in total. Three researchers first open-coded these stories and then met to reach consensus concerning the themes that emerged. Ten themes were identified: family values, generativity, religious reference, reference to love, reference to home, cultural norms, uncertainty and worries, positivity, negativity, and dissonance and disagreements. The first 6 themes represent the values, beliefs, and norms of the participants, with the remaining 4 reflecting their personal identities, personalities, and experiences. The findings suggest that they continue to value families and religion, care about others, and make judgements about people, things, and circumstances that they face. Researchers, practitioners, and care partners can benefit from “listening to” creative storytellers more closely to learn about their opinions, expectations, and preferences.

Abstract Considering healthcare costs related to Alzheimer’s Disease and related dementias, shifting attention to the relatively malleable abilities of persons living with dementia holds promise for improving their well-being while reducing care burden. Defined as the ability to successfully interact with others, social intelligence is found to benefit well-being. Nevertheless, no known prior study has examined social intelligence among persons living with dementia. The purpose of this study is, therefore, to fill this gap by identifying the themes of social intelligence in this group. We used video-recorded data from an arts-based, creative group storytelling program (TimeSlips) that we implemented at Silverado Onion Creek Memory Care Community (currently, The Auberge) in Austin. The program is designed for persons living with dementia and involves a facilitator encouraging participants to use their imagination to collectively create a story from a staged picture. We offered 6 weekly sessions with 4 small groups of their residents (N = 26) in fall 2018 and spring 2019, and videotaped the sessions. Three researchers open-coded how participants interacted during storytelling sessions, and then met to reach consensus concerning verbal and non-verbal indicators of social intelligence. Major themes that emerged from our analysis are social awareness, initiating social interactions, and social diplomacy. Our findings suggest that those with lower cognitive function scores do not necessarily lack sociability. These findings add to social intelligence and dementia literatures, with potential implications for future research that can investigate the relationship between sociability and well-being among persons living with dementia.

Abstract De-esterification of homogalacturonan (HG) is thought to stiffen pectin gels and primary cell walls by increasing calcium cross-linking between HG chains. Contrary to this idea, recent studies found that HG de-esterification correlated with reduced stiffness of living tissues, measured by surface indentation. The physical basis of such apparent wall softening is unclear, but possibly involves complex biological responses to HG modification. To assess the direct physical consequences of HG de-esterification on wall mechanics without such complications, we treated isolated onion (Allium cepa) epidermal walls with pectin methylesterase (PME) and assessed wall biomechanics with indentation and tensile tests. In nanoindentation assays, PME action softened the wall (reduced the indentation modulus). In tensile force/extension assays, PME increased plasticity, but not elasticity. These softening effects are attributed, at least in part, to increased electrostatic repulsion and swelling of the wall after PME treatment. Despite softening and swelling upon HG de-esterification, PME treatment alone failed to induce cell wall creep. Instead, acid-induced creep, mediated by endogenous α-expansin, was reduced. We conclude that HG de-esterification physically softens the onion wall, yet reduces expansin-mediated wall extensibility.

Summary New methods have been developed to constrain optimal horizontal drilling distance in fractured reservoirs in which opening-mode fractures are dominant. Studies of opening-mode fractures in Austin Chalk outcrops and core reveal that open fractures are commonly clustered, with the distance between clusters ranging from approximately 1 m to more than 300 m, depending on the horizon in question. Aperture-size distributions follow power laws, and spacing-size distributions are negative logarithmic or log-normal. The aperture size at which fractures are open to fluids is variable and site-specific (0.14 to 11 mm). Scaling properties of fracture attributes were used to calculate fracture permeability and to constrain well-length fracture-permeability relationships. Fracture permeability depends on the scale of measurement; it has been determined at 9.2 darcies for 14 m of lower Austin Chalk core and 286 darcies for 300 m of upper Austin Chalk outcrop. Introduction The Upper Cretaceous Austin Chalk, which crops out in a swath across central Texas, is renowned as a horizontal play and is well documented as such.1,2 Most workers regard Austin Chalk reservoirs as being low-porosity, fractured reservoirs, although there is debate concerning the relative storage capacities of matrix vs. fractures. When drilling a horizontal well in a fractured reservoir, the usual aim is to intersect fractures that are capable of providing a conduit for fluid flow. Although many horizontal wells have been drilled in the Austin Chalk,3 there are still questions over where it is best to locate new operations and how to optimize three critical parameters: wellbore azimuth, vertical depth, and wellbore length.4 This paper focuses on the question of wellbore length, although information pertaining to azimuth and depth choices also has been obtained. The choice of wellbore length has, in the past, been guided by experience and by field rules established by the Texas Railroad Commission, whereby the length of wells is linked to the acreage allocation of proration units and the permissible producing rate.4 Although these guidelines are practical, they lack direct geological input. The aim of this contribution is to develop techniques in which well-length determination is based on direct observation of fracture systems in the Austin Chalk, in addition to the Texas Railroad Commission guidelines. The objective of the outcrop and core studies was to characterize the opening-mode fracture system. Aperture-size distribution, spacing-size distribution, and fracture fill were determined in each case, allowing characterization of the spatial architecture of large, open fractures. This approach enabled us to calculate fracture permeability for different well lengths and to constrain optimal drilling distance for horizontal wells. The relationship between opening-mode fractures and normal faults in the outcrop is documented, and the relative importance of fractures and faults to reservoir permeability is considered. The connectivity and vertical height of fractures, and their impact on permeability, are discussed. Study Areas Data are presented from two outcrop analogs: one is near Waxahachie, north central Texas (Grove Creek); the other is from McKinney Falls State Park, central Texas (McKinney Falls), and from two laterals of a horizontal core drilled by the Kinlaw Oil Corp. in Frio County, Pearsall field (Kinlaw core) (Fig. 1). This well is currently operated by BASA Resources Inc. Although this study relates to the Austin Chalk specifically, the techniques used are transferable and could be applied in other horizontal targets. Geology The Austin Chalk is variable in terms of mineralogy, texture, and stratigraphy in part because of the effect of a basement high, the San Marcos Arch,5 on the paleobathymetry of its depositional basin. The updip portions of the Chalk in the Austin and San Antonio regions are relatively shallow water deposits containing considerable quantities of benthic skeletal material. Deeper-water planktonic microfossils and nanofossils dominate the basin equivalents, although some benthic material was transported basinward in debris flows.5 Drake6 reports the updip portions of the chalk in Burleson County, Giddings field, to be less fractured than the downdip portions, with wells in the updip portions being poor producers. At McKinney Falls State Park, a pavement in the McKown formation is exposed where Onion Creek flows over the lower falls. The McKown formation is a lateral equivalent of the Austin Chalk and comprises chalk intercalated with pyroclastic deposits derived from Pilot Knob, a Cretaceous volcanic center 3 km to the southeast.7 The Grove Creek outcrop is stratigraphically at the top of the Upper Chalk, just below the overlying Ozan formation. The McKinney Falls outcrop is close to the overlying Taylor Marl. The horizontal Kinlaw core from Pearsall field is from the base of the lower Chalk in the Atco Member. Thus, stratigraphically and with respect to the basin architecture, the studied sites are disparate. It is not the intention of this paper to make definitive recommendations for drilling distance in the Austin Chalk based on so few sites, but rather to show with these examples how site-specific information may be used to this end. Data-Collection Methodology An important consideration in fracture studies is whether the fractures observed in a particular core or outcrop are representative of those fractures that occur in the subsurface and contribute to fluid flow. In the case of core studies, the main pitfalls surround the distinction of natural fractures from those induced by drilling or by the core-handling process. Kulander et al.8 provided a comprehensive guide to natural and induced fracture identification in cores, and their criteria were used here. In outcrop studies, the challenge is to distinguish those fractures that would have been formed in the subsurface, at an appropriate depth to be considered as a reservoir analog, from those fractures that developed during uplift and erosion. The fracture systems documented here are confined to those that exhibit partial or total mineral fill and that would have developed in the subsurface.

The fabrication of smart biocomposites from sustainable resources that could replace today’s petroleum-derived polymer materials is a growing field of research. Here, we report preparation of novel biocomposites using nanocellulose networks extracted from food residue (onion skin) and a vegetable oil-based bioresin. The resin was synthesized via the Diels-Alder reaction between furfuryl methacrylate and tung oil at various ratios of the components. The onion-skin-extracted cellulose nanofiber and cellulose nanocrystal networks were then impregnated with the resins yielding biocomposites that exhibited improved mechanical strength and higher storage modulus values. The properties of the resins, as well as biocomposites, were affected by the resin compositions. A 190–240-fold increase in mechanical strength was observed in the cellulose nanofiber (CNF) and cellulose nanocrystal (CNC)-reinforced biocomposites with low furfuryl methacrylate content. The biocomposites exhibited interesting shape-memory behavior with 80–96% shape recovery being observed after 7 creep cycles.

We present 7 new occurrence records for the Barton Springs Salamander (Eurycea sosorum Chippindale, Price & Hillis, 1993) from Hays and Travis counties, Texas, USA, including the first for this species from the Trinity Aquifer. Eurycea sosorum is listed as endangered under the Endangered Species Act of 1973 due to ongoing threats from urbanization and aquifer overdraft throughout its narrow range. Although this species is more widely distributed than when it was first described in 1993, its range is still exceptionally small, restricted to portions of only two watersheds (Onion and Barton creeks) in one of the fastest-growing metropolitan areas in the United States (Austin, Texas). Under any ecologically-relevant criterion that is based on the best available scientific evidence, this species remains in danger of extinction throughout its range.

Tulisan ini menyajikan hasil penelitian tentang tradisi dan ritual melemang di kabupaten Muara Enim, Sumatera Selatan. Penelitian ini dilaksanakan dari tanggal 4 – 18 Oktober 2018 di desa Karang Raja dan Kepur. Tujuan penelitian ini menyajikan nilai-nilai budaya dan agama apa saja yang bisa diambil dari tradisi melemang di 2 (dua) desa tersebut. Tradisi melemang merupakan tradisi adat yang ada pada bulan Muharram di desa Karang Raja dan Kepur. Tradisi ini sudah dilakukan secara turun temurun sejak zaman nenek moyang (Puyang) mereka hingga saat ini. Tradisi ini bertujuan sebagai tolak balak dari bencana banjir yang akan menimpa ke 2 (dua) desa tersebut dengan mengadakan sedekah desa (dusun) dalam bentuk membuat lemang oleh seluruh masyarakat tanpa terkecuali. Tradisi ini bercirikan pembuatan lemang yang terbuat dari campuran beras ketan dan kelapa parut, yang dicampur pisang, udang atau bawang dengan dilapisi daun pisang, kemudian dimasukkan ke dalam bambu berukuran seruas bambu. Nilai-nilai budaya yang dapat kita ambil dari tradisi ini yaitu nilai Silaturahmi dan Gotong Royong. Adapun nilai agama yang disampaikan dalam tradisi tersebut berupa nilai aqidah dan ibadah. Kata Kunci: Tradisi, Melemang, Nilai Budaya, Nilai Agama This paper presents the results of research on traditions and rituals in the district of Muara Enim, South Sumatra. This research was conducted from 4 - 18 October 2018 in the villages of Karang Raja and Kepur. The purpose of this study is to present what cultural and religious values can be drawn from the tradition of melemang in the 2 (two) villages. The melemang tradition is a customary tradition that exists in the month of Muharram in the villages of Karang Raja and Kepur. This tradition has been carried down from generation to generation since the days of their ancestors (Puyang) to the present. This tradition is intended as an anticipation for the flood disaster that will befall these 2 (two) villages by holding village alms (dusun) in the form of making lemang by the entire community without exception. This tradition is characterized by making lemang made from a mixture of glutinous rice and grated coconut, which is mixed with bananas, shrimp or onions coated with banana leaves, then put into a section of bamboo. The cultural values that we can be drawn from this tradition are the value of Hospitality and Mutual Cooperation between members of the society. The religious values conveyed in the tradition are creed and worship. Keywords: Tradition, Melemang, Cultural Values, Religious Values

Horizon Environmental Services, Inc. (Horizon) was selected by the City of Dripping Springs to conduct an intensive cultural resources inventory survey and assessment of the proposed Dripping Springs Wastewater System Improvements Project (EID 1) in Dripping Springs, Hays County, Texas (USACE Project No. SWF-2020-00075). This survey represents the first phase of a larger project involving the proposed construction of wastewater system improvements in Dripping Springs. The current phase of the project would involve three separate components—the West Interceptor segment, which extends approximately 3.7 kilometers (2.3 miles) in length along Onion Creek west of Farm-to-Market Road (FM) 12; the Reclaimed Water Line segment, which extends approximately 1.3 kilometers (0.8 mile) in length between Needham Road and the intersection of FM 12 and FM 150; an approximately 2.3-hectare (5.7-acre) effluent pond located south of an existing water reclamation facility south of FM 150; and the proposed expansion of the existing water reclamation facility adjacent to the proposed effluent pond, which together cover 3.3 hectares (8.0 acres). The linear rights-of-way (ROW) of proposed pipeline segments would measure a maximum of 30.5 meters (100.0 feet) in width, and the proposed project components would cover a combined area of approximately 18.5 hectares (45.6 acres). The proposed undertaking would be sponsored by the City of Dripping Springs, a public subdivision of the state of Texas. As a political subdivision of the state of Texas, the project would fall under the jurisdiction of the Antiquities Code of Texas (Natural Resources Code, Title 9, Chapter 191). In addition, the project would utilize funding provided by the Clean Water State Revolving Fund (CWSRF) program, which is a federal-state partnership between the US Environmental Protection Agency (US EPA) and the state of Texas. As the US EPA is a federal agency, the project would also fall under the jurisdiction of Section 106 of the National Historic Preservation Act (NHPA) of 1966, as amended. As the proposed project represents a publicly sponsored undertaking, the project sponsor is required to provide the Texas Historical Commission (THC), which serves as the State Historic Preservation Office (SHPO) for the state of Texas, with an opportunity to review and comment on the project’s potential to adversely affect historic properties listed on or considered eligible for listing on the National Register of Historic Places (NRHP) under the NHPA and for designation as State Antiquities Landmarks (SAL) under the Antiquities Code of Texas. From October 1 to 3, on November 4, and on November 22, 2019, Horizon archeologists Jesse Dalton, McKinzie Froese, Amy Goldstein, Elizabeth Sefton, and Jared Wiersema conducted an intensive cultural resources survey of the project area, including pedestrian walkover with shovel testing and backhoe trenching. The survey was performed under the supervision of Jeffrey D. Owens, who served as Principal Investigator, under Texas Antiquities Permit No. 9114. The purpose of the survey was to locate any significant cultural resources that potentially would be impacted by the proposed undertaking. Horizon’s archeologists traversed the project area on foot and thoroughly inspected the modern ground surface for aboriginal and historic-age cultural resources. Overall, vegetation across the entire project area generally consisted of short- to medium-length grasses interspersed with mature live oak and cedar trees, which afforded fair to good ground surface visibility (30 to 60%). Within the riparian zone of Onion Creek, vegetation consisted of tall, dense grass and mature honey mesquite, cedar, live oak, and hackberry trees, which provided poor ground surface visibility (<30%). The West Interceptor segment runs along the gravelly terraces of Onion Creek. Topographically, this segment of the project area consists of steep limestone steps and rocky outcrops that give way to flat, open fields. The proposed interceptor crosses Onion Creek at three locations, and the lower stream terraces of the creek have extensive gravel bars and debris associated with high-energy flooding. Soil profiles typically consist of a shallow A horizon of hard, calcareous clay loam underlain by dense gravelly deposits; however, in the southeastern portion of the West Interceptor, deeper clayey loam alluvium underlain by limestone bedrock was encountered. The Reclaimed Water Line segment traverses the west-facing hillslopes of upland ridges east of Onion Creek. Approximately the southeastern half of this segment of the project area would be constructed within the existing ROW of FM 12 west of the roadway, and construction, use, and ongoing maintenance of the roadway and associated facilities has resulted in extensive prior disturbances. Evidence of ground disturbance resulting from land clearing for housing developments and a transmission line were also noted within the northwestern portion of the proposed Reclaimed Water Line segment. The far northwestern end of the proposed Reclaimed Water Line segment skims the edge of the floodplain associated with a tributary of Onion Creek. Sediments on the terraces of this stream channel consist of calcareous loamy alluvial deposits, while soils across the upland portions of the segment consist of shallow deposits of gravelly clay and clay loam underlain by naturally degrading limestone bedrock. The water reclamation facility expansion and effluent pond segment are located on the upper terraces northeast of Onion Creek. The water reclamation facility is an existing industrial facility surrounded by septic fields, and prior disturbances from construction, use, and ongoing maintenance of the facility are extensive. The proposed expansion area to the north of the existing facility is currently utilized as a septic field. Sediments within this segment of the project area consist of shallow, gravelly, calcareous loamy to clayey loam alluvium underlain by naturally degrading limestone bedrock. In addition to a pedestrian walkover, the Texas State Minimum Archeological Survey Standards (TSMASS) require a minimum of 16 subsurface shovel tests per 1.6 kilometers (1.0 mile) for each 30.5-meter- (100.0-foot-) wide transect (or fraction thereof) for linear surveys unless field conditions warrant more shovel tests (e.g., in cultural high-probability areas) or fewer shovel tests (e.g., on steep slopes, in areas with excellent ground surface visibility). For block-area surveys, the TSMASS require two shovel tests per 0.4 hectare (1.0 acre) for project areas between 1.2 and 4.0 hectares (3.0 and 10.0 acres) in size. As such, a minimum of 37 shovel tests would be required within the West Interceptor segment, 13 shovel tests would be required within the Reclaimed Water Line segment, and 16 shovel tests would be required within the proposed water reclamation facility expansion and effluent pond area, for a total of 66 shovel tests for the project area as a whole. Horizon excavated a total of 106 shovel tests during the survey, including 82 shovel tests within the West Interceptor segment, 13 shovel tests within the Reclaimed Water Line segment, and 11 shovel tests within the facility expansion and effluent pond area. The shovel tests within the proposed facility expansion and effluent pond area were not all excavated directly within the final proposed construction footprint as the boundaries of this portion of the project area had not been firmly determined at the time of the survey, and no shovel tests were excavated within the existing water reclamation facility due to the extent of observable prior disturbances within this area. Overall, Horizon exceeded the minimum number of shovel tests required for the project area as a whole, and it is Horizon’s opinion that shovel testing was capable of fully penetrating sediments with the potential to contain subsurface archeological deposits (with the exception noted below where backhoe trenches were excavated along a portion of the West Interceptor segment). In addition to shovel testing, Horizon excavated four backhoe trenches within the southeastern portion of the proposed West Interceptor segment. The trenches were excavated at roughly 100.0-meter (328.0-foot) intervals along the proposed centerline to depths ranging from 105.0 to 350.0 centimeters (41.3 to 137.8 inches) below surface. Sediments observed within trench profiles typically consisted of moderately deep deposits of grayish-brown fine clay loam over yellowish-brown fine sandy loam. Dense deposits of river cobbles and/or naturally degrading limestone bedrock were observed at the base of three of the four trenches, and it is Horizon’s opinion that backhoe trenching was capable of fully penetrating sediments with the potential to contain archeological deposits. One chert flake was recorded in a shovel test (ST AG30) at a depth of 0.0 to 30.0 centimeters (0.0 to 11.8 inches) below surface at the far northwestern end of the West Interceptor project segment. Supplemental delineation shovel tests excavated around this initial discovery failed to produce any additional evidence of prehistoric cultural activity at this location, so the chert flake was recorded as an isolated artifact occurrence but was not documented as an archeological site. No other cultural resources of prehistoric or historic age were recorded within the project area during the pedestrian survey, shovel testing, or backhoe trenching. Based on the results of the survey-level investigations documented in this report, no cultural resources would be affected by the proposed undertaking. In accordance with 36 CFR 800.4, Horizon has made a reasonable and good-faith effort to identify historic properties within the project area. No cultural resources were identified within the project area that meet the criteria for designation as SALs according to 13 TAC 26 or for inclusion in the NRHP according to 36 CFR 60.4. Horizon recommends a finding of “no historic properties affected,” and no further archeological work is recommended in connection with the proposed undertaking. However, human burials, both prehistoric and historic, are protected under the Texas Health and Safety Code. In the event that any human remains or burial objects are inadvertently discovered at any point during construction, use, or ongoing maintenance in the project area, even in previously surveyed areas, all work should cease immediately in the vicinity of the inadvertent discovery, and the THC should be notified immediately. Following completion of the project, all project records will be prepared for permanent curation at the Texas Archeological Research Laboratory (TARL).